refactor: use ajv instead of cafy (#8324)

* wip

* wip

* Update abuse-user-reports.ts

* Update files.ts

* Update list-remote.ts

* Update list.ts

* Update show-users.ts

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* Update update.ts

* Update search.ts

* Update reactions.ts

* Update search.ts

* wip

* wip

* wip

* wip

* Update update.ts

* Update relation.ts

* Update available.ts

* wip

* wip

* wip

* Update packages/backend/src/server/api/define.ts

Co-authored-by: Johann150 <johann.galle@protonmail.com>

* Update define.ts

* Update define.ts

* typo

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* Update update.ts

* wip

* Update signup.ts

* Update call.ts

* minimum for limit

* type

* remove needless annotation

* wip

* Update signup.ts

* wip

* wip

* fix

* Update create.ts

Co-authored-by: Johann150 <johann.galle@protonmail.com>

packages/backend/package.json

@@ -70,6 +70,7 @@
 		"@typescript-eslint/eslint-plugin": "5.12.0",
 		"@typescript-eslint/parser": "5.12.0",
 		"abort-controller": "3.0.0",
+		"ajv": "8.10.0",
 		"archiver": "5.3.0",
 		"autobind-decorator": "2.4.0",
 		"autwh": "0.1.0",

packages/backend/src/misc/schema.ts

@@ -65,16 +65,18 @@ export const refs = {
 
 // Packed = SchemaTypeDef<typeof refs[x]>; とすると展開されてマウスホバー時に型表示が使い物にならなくなる
 // ObjType<r['properties']>を指定すると（なぜか）展開されずにPacked<'Hoge'>と表示される
-type PackedDef<r extends { properties?: Obj; oneOf?: ReadonlyArray<MinimumSchema>; allOf?: ReadonlyArray<MinimumSchema> }> =
+type PackedDef<r extends { properties?: Obj; oneOf?: ReadonlyArray<Schema>; allOf?: ReadonlyArray<Schema> }> =
-	r['allOf'] extends ReadonlyArray<MinimumSchema> ? UnionToIntersection<UnionSchemaType<r['allOf']>> :
+	r['allOf'] extends ReadonlyArray<Schema> ? UnionToIntersection<UnionSchemaType<r['allOf']>> :
-	r['oneOf'] extends ReadonlyArray<MinimumSchema> ? UnionSchemaType<r['oneOf']> :
+	r['oneOf'] extends ReadonlyArray<Schema> ? UnionSchemaType<r['oneOf']> :
-	r['properties'] extends Obj ? ObjType<r['properties']> :
+	r['properties'] extends Obj ? ObjType<r['properties'], any> :
 	never;
 export type Packed<x extends keyof typeof refs> = PackedDef<typeof refs[x]>;
 
-type TypeStringef = 'boolean' | 'number' | 'string' | 'array' | 'object' | 'any';
+type TypeStringef = 'null' | 'boolean' | 'integer' | 'number' | 'string' | 'array' | 'object' | 'any';
 type StringDefToType<T extends TypeStringef> =
+	T extends 'null' ? null :
 	T extends 'boolean' ? boolean :
+	T extends 'integer' ? number :
 	T extends 'number' ? number :
 	T extends 'string' ? string | Date :
 	T extends 'array' ? ReadonlyArray<any> :
@@ -83,17 +85,18 @@ type StringDefToType<T extends TypeStringef> =
 
 // https://swagger.io/specification/?sbsearch=optional#schema-object
 type OfSchema = {
-	readonly anyOf?: ReadonlyArray<MinimumSchema>;
+	readonly anyOf?: ReadonlyArray<Schema>;
-	readonly oneOf?: ReadonlyArray<MinimumSchema>;
+	readonly oneOf?: ReadonlyArray<Schema>;
-	readonly allOf?: ReadonlyArray<MinimumSchema>;
+	readonly allOf?: ReadonlyArray<Schema>;
 }
 
-export interface MinimumSchema extends OfSchema {
+export interface Schema extends OfSchema {
 	readonly type?: TypeStringef;
 	readonly nullable?: boolean;
 	readonly optional?: boolean;
-	readonly items?: MinimumSchema;
+	readonly items?: Schema;
 	readonly properties?: Obj;
+	readonly required?: ReadonlyArray<keyof NonNullable<this['properties']>>;
 	readonly description?: string;
 	readonly example?: any;
 	readonly format?: string;
@@ -104,26 +107,33 @@ export interface MinimumSchema extends OfSchema {
 	readonly minLength?: number;
 }
 
-export interface Schema extends MinimumSchema {
+type OptionalPropertyNames<T extends Obj> = {
-	readonly nullable: boolean;
+	[K in keyof T]: T[K]['optional'] extends true ? K : never
-	readonly optional: boolean;
-}
-
-type NonUndefinedPropertyNames<T extends Obj> = {
-	[K in keyof T]: T[K]['optional'] extends true ? never : K
 }[keyof T];
 
-type UndefinedPropertyNames<T extends Obj> = {
+type NonOptionalPropertyNames<T extends Obj> = {
-	[K in keyof T]: T[K]['optional'] extends true ? K : never
+	[K in keyof T]: T[K]['optional'] extends false ? K : never
+}[keyof T];
+
+type DefaultPropertyNames<T extends Obj> = {
+	[K in keyof T]: T[K]['default'] extends null ? K :
+		T[K]['default'] extends string ? K :
+		T[K]['default'] extends number ? K :
+		T[K]['default'] extends boolean ? K :
+		T[K]['default'] extends Record<string, unknown> ? K :
+		never
 }[keyof T];
 
 export interface Obj { [key: string]: Schema; }
 
-export type ObjType<s extends Obj> =
+export type ObjType<s extends Obj, RequiredProps extends ReadonlyArray<keyof s>> =
-	{ -readonly [P in UndefinedPropertyNames<s>]?: SchemaType<s[P]> } &
+	{ -readonly [P in keyof s]?: SchemaType<s[P]> } &
-	{ -readonly [P in NonUndefinedPropertyNames<s>]: SchemaType<s[P]> };
+	{ -readonly [P in RequiredProps[number]]: SchemaType<s[P]> } &
+	{ -readonly [P in OptionalPropertyNames<s>]?: SchemaType<s[P]> } &
+	{ -readonly [P in NonOptionalPropertyNames<s>]: SchemaType<s[P]> } &
+	{ -readonly [P in DefaultPropertyNames<s>]: SchemaType<s[P]> };
 
-type NullOrUndefined<p extends MinimumSchema, T> =
+type NullOrUndefined<p extends Schema, T> =
 	p['nullable'] extends true
 		?	p['optional'] extends true
 			? (T | null | undefined)
@@ -137,10 +147,12 @@ type UnionToIntersection<U> = (U extends any ? (k: U) => void : never) extends (
 
 // https://github.com/misskey-dev/misskey/pull/8144#discussion_r785287552
 // 単純にSchemaTypeDef<X>で判定するだけではダメ
-type UnionSchemaType<a extends readonly any[], X extends MinimumSchema = a[number]> = X extends any ? SchemaType<X> : never;
+type UnionSchemaType<a extends readonly any[], X extends Schema = a[number]> = X extends any ? SchemaType<X> : never;
 type ArrayUnion<T> = T extends any ? Array<T> : never; 
 
-export type SchemaTypeDef<p extends MinimumSchema> =
+export type SchemaTypeDef<p extends Schema> =
+	p['type'] extends 'null' ? null :
+	p['type'] extends 'integer' ? number :
 	p['type'] extends 'number' ? number :
 	p['type'] extends 'string' ? (
 		p['enum'] extends readonly string[] ?
@@ -151,22 +163,22 @@ export type SchemaTypeDef<p extends MinimumSchema> =
 	p['type'] extends 'boolean' ? boolean :
 	p['type'] extends 'object' ? (
 		p['ref'] extends keyof typeof refs ? Packed<p['ref']> :
-		p['properties'] extends NonNullable<Obj> ? ObjType<p['properties']> :
+		p['properties'] extends NonNullable<Obj> ? ObjType<p['properties'], NonNullable<p['required']>> :
-		p['anyOf'] extends ReadonlyArray<MinimumSchema> ? UnionSchemaType<p['anyOf']> & Partial<UnionToIntersection<UnionSchemaType<p['anyOf']>>> :
+		p['anyOf'] extends ReadonlyArray<Schema> ? UnionSchemaType<p['anyOf']> & Partial<UnionToIntersection<UnionSchemaType<p['anyOf']>>> :
-		p['allOf'] extends ReadonlyArray<MinimumSchema> ? UnionToIntersection<UnionSchemaType<p['allOf']>> :
+		p['allOf'] extends ReadonlyArray<Schema> ? UnionToIntersection<UnionSchemaType<p['allOf']>> :
 		any
 	) :
 	p['type'] extends 'array' ? (
 		p['items'] extends OfSchema ? (
-			p['items']['anyOf'] extends ReadonlyArray<MinimumSchema> ? UnionSchemaType<NonNullable<p['items']['anyOf']>>[] :
+			p['items']['anyOf'] extends ReadonlyArray<Schema> ? UnionSchemaType<NonNullable<p['items']['anyOf']>>[] :
-			p['items']['oneOf'] extends ReadonlyArray<MinimumSchema> ? ArrayUnion<UnionSchemaType<NonNullable<p['items']['oneOf']>>> :
+			p['items']['oneOf'] extends ReadonlyArray<Schema> ? ArrayUnion<UnionSchemaType<NonNullable<p['items']['oneOf']>>> :
-			p['items']['allOf'] extends ReadonlyArray<MinimumSchema> ? UnionToIntersection<UnionSchemaType<NonNullable<p['items']['allOf']>>>[] :
+			p['items']['allOf'] extends ReadonlyArray<Schema> ? UnionToIntersection<UnionSchemaType<NonNullable<p['items']['allOf']>>>[] :
 			never
 		) :
-		p['items'] extends NonNullable<MinimumSchema> ? SchemaTypeDef<p['items']>[] :
+		p['items'] extends NonNullable<Schema> ? SchemaTypeDef<p['items']>[] :
 		any[]
 	) :
-	p['oneOf'] extends ReadonlyArray<MinimumSchema> ? UnionSchemaType<p['oneOf']> :
+	p['oneOf'] extends ReadonlyArray<Schema> ? UnionSchemaType<p['oneOf']> :
 	any;
 
-export type SchemaType<p extends MinimumSchema> = NullOrUndefined<p, SchemaTypeDef<p>>;
+export type SchemaType<p extends Schema> = NullOrUndefined<p, SchemaTypeDef<p>>;

packages/backend/src/models/repositories/drive-folder.ts

@@ -6,13 +6,6 @@ import { Packed } from '@/misc/schema';
 
 @EntityRepository(DriveFolder)
 export class DriveFolderRepository extends Repository<DriveFolder> {
-	public validateFolderName(name: string): boolean {
-		return (
-			(name.trim().length > 0) &&
-			(name.length <= 200)
-		);
-	}
-
 	public async pack(
 		src: DriveFolder['id'] | DriveFolder,
 		options?: {

packages/backend/src/models/repositories/messaging-message.ts

@@ -6,10 +6,6 @@ import { User } from '@/models/entities/user';
 
 @EntityRepository(MessagingMessage)
 export class MessagingMessageRepository extends Repository<MessagingMessage> {
-	public validateText(text: string): boolean {
-		return text.trim().length <= 1000 && text.trim() != '';
-	}
-
 	public async pack(
 		src: MessagingMessage['id'] | MessagingMessage,
 		me?: { id: User['id'] } | null | undefined,

packages/backend/src/models/repositories/note.ts

@@ -12,10 +12,6 @@ import { aggregateNoteEmojis, populateEmojis, prefetchEmojis } from '@/misc/popu
 
 @EntityRepository(Note)
 export class NoteRepository extends Repository<Note> {
-	public validateCw(x: string) {
-		return x.trim().length <= 100;
-	}
-
 	public async isVisibleForMe(note: Note, meId: User['id'] | null): Promise<boolean> {
 		// visibility が specified かつ自分が指定されていなかったら非表示
 		if (note.visibility === 'specified') {

packages/backend/src/models/repositories/user.ts

@@ -1,5 +1,5 @@
-import $ from 'cafy';
 import { EntityRepository, Repository, In, Not } from 'typeorm';
+import * as Ajv from 'ajv';
 import { User, ILocalUser, IRemoteUser } from '@/models/entities/user';
 import { Notes, NoteUnreads, FollowRequests, Notifications, MessagingMessages, UserNotePinings, Followings, Blockings, Mutings, UserProfiles, UserSecurityKeys, UserGroupJoinings, Pages, Announcements, AnnouncementReads, Antennas, AntennaNotes, ChannelFollowings, Instances } from '../index';
 import config from '@/config/index';
@@ -17,8 +17,26 @@ type IsMeAndIsUserDetailed<ExpectsMe extends boolean | null, Detailed extends bo
 		Packed<'UserDetailed'> :
 	Packed<'UserLite'>;
 
+const ajv = new Ajv();
+
 @EntityRepository(User)
 export class UserRepository extends Repository<User> {
+	public localUsernameSchema = { type: 'string', pattern: /^\w{1,20}$/.toString().slice(1, -1) } as const;
+	public passwordSchema = { type: 'string', minLength: 1 } as const;
+	public nameSchema = { type: 'string', minLength: 1, maxLength: 50 } as const;
+	public descriptionSchema = { type: 'string', minLength: 1, maxLength: 500 } as const;
+	public locationSchema = { type: 'string', minLength: 1, maxLength: 50 } as const;
+	public birthdaySchema = { type: 'string', pattern: /^([0-9]{4})-([0-9]{2})-([0-9]{2})$/.toString().slice(1, -1) } as const;
+
+	//#region Validators
+	public validateLocalUsername = ajv.compile(this.localUsernameSchema);
+	public validatePassword = ajv.compile(this.passwordSchema);
+	public validateName = ajv.compile(this.nameSchema);
+	public validateDescription = ajv.compile(this.descriptionSchema);
+	public validateLocation = ajv.compile(this.locationSchema);
+	public validateBirthday = ajv.compile(this.birthdaySchema);
+	//#endregion
+
 	public async getRelation(me: User['id'], target: User['id']) {
 		const [following1, following2, followReq1, followReq2, toBlocking, fromBlocked, mute] = await Promise.all([
 			Followings.findOne({
@@ -351,13 +369,4 @@ export class UserRepository extends Repository<User> {
 	public isRemoteUser(user: User | { host: User['host'] }): boolean {
 		return !this.isLocalUser(user);
 	}
-
-	//#region Validators
-	public validateLocalUsername = $.str.match(/^\w{1,20}$/);
-	public validatePassword = $.str.min(1);
-	public validateName = $.str.min(1).max(50);
-	public validateDescription = $.str.min(1).max(500);
-	public validateLocation = $.str.min(1).max(50);
-	public validateBirthday = $.str.match(/^([0-9]{4})-([0-9]{2})-([0-9]{2})$/);
-	//#endregion
 }

packages/backend/src/server/api/api-handler.ts

@@ -5,7 +5,7 @@ import authenticate, { AuthenticationError } from './authenticate';
 import call from './call';
 import { ApiError } from './error';
 
-export default (endpoint: IEndpoint, ctx: Koa.Context) => new Promise((res) => {
+export default (endpoint: IEndpoint, ctx: Koa.Context) => new Promise<void>((res) => {
 	const body = ctx.request.body;
 
 	const reply = (x?: any, y?: ApiError) => {

packages/backend/src/server/api/call.ts

@@ -2,7 +2,7 @@ import * as Koa from 'koa';
 import { performance } from 'perf_hooks';
 import { limiter } from './limiter';
 import { User } from '@/models/entities/user';
-import endpoints from './endpoints';
+import endpoints, { IEndpoint } from './endpoints';
 import { ApiError } from './error';
 import { apiLogger } from './logger';
 import { AccessToken } from '@/models/entities/access-token';
@@ -67,7 +67,7 @@ export default async (endpoint: string, user: User | null | undefined, token: Ac
 
 	if (ep.meta.requireCredential && ep.meta.limit && !user!.isAdmin && !user!.isModerator) {
 		// Rate limit
-		await limiter(ep, user!).catch(e => {
+		await limiter(ep as IEndpoint & { meta: { limit: NonNullable<IEndpoint['meta']['limit']> } }, user!).catch(e => {
 			throw new ApiError({
 				message: 'Rate limit exceeded. Please try again later.',
 				code: 'RATE_LIMIT_EXCEEDED',
@@ -78,10 +78,10 @@ export default async (endpoint: string, user: User | null | undefined, token: Ac
 	}
 
 	// Cast non JSON input
-	if (ep.meta.requireFile && ep.meta.params) {
+	if (ep.meta.requireFile) {
-		for (const k of Object.keys(ep.meta.params)) {
+		for (const k of Object.keys(ep.params)) {
-			const param = ep.meta.params[k];
+			const param = ep.params.properties![k];
-			if (['Boolean', 'Number'].includes(param.validator.name) && typeof data[k] === 'string') {
+			if (['boolean', 'number', 'integer'].includes(param.type ?? '') && typeof data[k] === 'string') {
 				try {
 					data[k] = JSON.parse(data[k]);
 				} catch (e) {
@@ -91,8 +91,8 @@ export default async (endpoint: string, user: User | null | undefined, token: Ac
 						id: '0b5f1631-7c1a-41a6-b399-cce335f34d85',
 					}, {
 						param: k,
-						reason: `cannot cast to ${param.validator.name}`,
+						reason: `cannot cast to ${param.type}`,
-					})
+					});
 				}
 			}
 		}

packages/backend/src/server/api/common/signup.ts

@@ -21,13 +21,13 @@ export async function signup(opts: {
 	let hash = passwordHash;
 
 	// Validate username
-	if (!Users.validateLocalUsername.ok(username)) {
+	if (!Users.validateLocalUsername(username)) {
 		throw new Error('INVALID_USERNAME');
 	}
 
 	if (password != null && passwordHash == null) {
 		// Validate password
-		if (!Users.validatePassword.ok(password)) {
+		if (!Users.validatePassword(password)) {
 			throw new Error('INVALID_PASSWORD');
 		}
 

packages/backend/src/server/api/define.ts

@@ -1,12 +1,11 @@
 import * as fs from 'fs';
+import * as Ajv from 'ajv';
 import { ILocalUser } from '@/models/entities/user';
 import { IEndpointMeta } from './endpoints';
 import { ApiError } from './error';
-import { SchemaType } from '@/misc/schema';
+import { Schema, SchemaType } from '@/misc/schema';
 import { AccessToken } from '@/models/entities/access-token';
 
-type NonOptional<T> = T extends undefined ? never : T;
-
 type SimpleUserInfo = {
 	id: ILocalUser['id'];
 	createdAt: ILocalUser['createdAt'];
@@ -21,22 +20,24 @@ type SimpleUserInfo = {
 	showTimelineReplies: ILocalUser['showTimelineReplies'];
 };
 
-type Params<T extends IEndpointMeta> = {
-	[P in keyof T['params']]: NonNullable<T['params']>[P]['transform'] extends () => any
-		? ReturnType<NonNullable<T['params']>[P]['transform']>
-		: NonNullable<T['params']>[P]['default'] extends null | number | string
-			? NonOptional<ReturnType<NonNullable<T['params']>[P]['validator']['get']>[0]>
-			: ReturnType<NonNullable<T['params']>[P]['validator']['get']>[0];
-};
-
 export type Response = Record<string, any> | void;
 
-type executor<T extends IEndpointMeta> =
+// TODO: paramsの型をT['params']のスキーマ定義から推論する
-	(params: Params<T>, user: T['requireCredential'] extends true ? SimpleUserInfo : SimpleUserInfo | null, token: AccessToken | null, file?: any, cleanup?: () => any) =>
+type executor<T extends IEndpointMeta, Ps extends Schema> =
+	(params: SchemaType<Ps>, user: T['requireCredential'] extends true ? SimpleUserInfo : SimpleUserInfo | null, token: AccessToken | null, file?: any, cleanup?: () => any) =>
 		Promise<T['res'] extends undefined ? Response : SchemaType<NonNullable<T['res']>>>;
 
-export default function <T extends IEndpointMeta>(meta: T, cb: executor<T>)
+const ajv = new Ajv({
+	useDefaults: true,
+});
+
+ajv.addFormat('misskey:id', /^[a-z0-9]+$/);
+
+export default function <T extends IEndpointMeta, Ps extends Schema>(meta: T, paramDef: Ps, cb: executor<T, Ps>)
 		: (params: any, user: T['requireCredential'] extends true ? SimpleUserInfo : SimpleUserInfo | null, token: AccessToken | null, file?: any) => Promise<any> {
+
+	const validate = ajv.compile(paramDef);
+
 	return (params: any, user: T['requireCredential'] extends true ? SimpleUserInfo : SimpleUserInfo | null, token: AccessToken | null, file?: any) => {
 		function cleanup() {
 			fs.unlink(file.path, () => {});
@@ -48,42 +49,22 @@ export default function <T extends IEndpointMeta>(meta: T, cb: executor<T>)
 			id: '4267801e-70d1-416a-b011-4ee502885d8b',
 		}));
 
-		const [ps, pserr] = getParams(meta, params);
+		const valid = validate(params);
-		if (pserr) {
+		if (!valid) {
 			if (file) cleanup();
-			return Promise.reject(pserr);
-		}
 
-		return cb(ps, user, token, file, cleanup);
+			const errors = validate.errors!;
-	};
+			const err = new ApiError({
-}
-
-function getParams<T extends IEndpointMeta>(defs: T, params: any): [Params<T>, ApiError | null] {
-	if (defs.params == null) return [params, null];
-
-	const x: any = {};
-	let err: ApiError | null = null;
-	Object.entries(defs.params).some(([k, def]) => {
-		const [v, e] = def.validator.get(params[k]);
-		if (e) {
-			err = new ApiError({
 				message: 'Invalid param.',
 				code: 'INVALID_PARAM',
 				id: '3d81ceae-475f-4600-b2a8-2bc116157532',
 			}, {
-				param: k,
+				param: errors[0].schemaPath,
-				reason: e.message,
+				reason: errors[0].message,
 			});
-			return true;
+			return Promise.reject(err);
-		} else {
-			if (v === undefined && Object.prototype.hasOwnProperty.call(def, 'default')) {
-				x[k] = def.default;
-			} else {
-				x[k] = v;
-			}
-			if (def.transform) x[k] = def.transform(x[k]);
-			return false;
 		}
-	});
+
-	return [x, err];
+		return cb(params, user, token, file, cleanup);
+	};
 }

packages/backend/src/server/api/endpoints.ts

@@ -1,6 +1,4 @@
-import { fileURLToPath } from 'url';
 import { dirname } from 'path';
-import { Context } from 'cafy';
 import * as path from 'path';
 import * as glob from 'glob';
 import { Schema } from '@/misc/schema';
@@ -9,23 +7,11 @@ import { Schema } from '@/misc/schema';
 const _filename = __filename;
 const _dirname = dirname(_filename);
 
-export type Param = {
-	validator: Context<any>;
-	transform?: any;
-	default?: any;
-	deprecated?: boolean;
-	ref?: string;
-};
-
 export interface IEndpointMeta {
 	readonly stability?: 'deprecated' | 'experimental' | 'stable';
 
 	readonly tags?: ReadonlyArray<string>;
 
-	readonly params?: {
-		readonly [key: string]: Param;
-	};
-
 	readonly errors?: {
 		readonly [key: string]: {
 			readonly message: string;
@@ -99,12 +85,15 @@ export interface IEndpointMeta {
 	 * パーミッションの実現に利用されます。
 	 */
 	readonly kind?: string;
+
+	readonly description?: string;
 }
 
 export interface IEndpoint {
 	name: string;
 	exec: any;
 	meta: IEndpointMeta;
+	params: Schema;
 }
 
 const files = glob.sync('**/*.js', {
@@ -118,6 +107,7 @@ const endpoints: IEndpoint[] = files.map(f => {
 		name: f.replace('.js', ''),
 		exec: ep.default,
 		meta: ep.meta || {},
+		params: ep.paramDef,
 	};
 });
 

packages/backend/src/server/api/endpoints/admin/abuse-user-reports.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { AbuseUserReports } from '@/models/index';
 import { makePaginationQuery } from '../../common/make-pagination-query';
@@ -10,49 +8,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		limit: {
-			validator: $.optional.num.range(1, 100),
-			default: 10,
-		},
-
-		sinceId: {
-			validator: $.optional.type(ID),
-		},
-
-		untilId: {
-			validator: $.optional.type(ID),
-		},
-
-		state: {
-			validator: $.optional.nullable.str,
-			default: null,
-		},
-
-		reporterOrigin: {
-			validator: $.optional.str.or([
-				'combined',
-				'local',
-				'remote',
-			]),
-			default: 'combined',
-		},
-
-		targetUserOrigin: {
-			validator: $.optional.str.or([
-				'combined',
-				'local',
-				'remote',
-			]),
-			default: 'combined',
-		},
-
-		forwarded: {
-			validator: $.optional.bool,
-			default: false,
-		},
-	},
-
 	res: {
 		type: 'array',
 		optional: false, nullable: false,
@@ -115,8 +70,22 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+		state: { type: 'string', nullable: true, default: null },
+		reporterOrigin: { type: 'string', enum: ['combined', 'local', 'remote'], default: "combined" },
+		targetUserOrigin: { type: 'string', enum: ['combined', 'local', 'remote'], default: "combined" },
+		forwarded: { type: 'boolean', default: false },
+	},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const query = makePaginationQuery(AbuseUserReports.createQueryBuilder('report'), ps.sinceId, ps.untilId);
 
 	switch (ps.state) {
@@ -134,7 +103,7 @@ export default define(meta, async (ps) => {
 		case 'remote': query.andWhere('report.targetUserHost IS NOT NULL'); break;
 	}
 
-	const reports = await query.take(ps.limit!).getMany();
+	const reports = await query.take(ps.limit).getMany();
 
 	return await AbuseUserReports.packMany(reports);
 });

packages/backend/src/server/api/endpoints/admin/accounts/create.ts

@@ -5,16 +5,6 @@ import { signup } from '../../../common/signup';
 export const meta = {
 	tags: ['admin'],
 
-	params: {
-		username: {
-			validator: Users.validateLocalUsername,
-		},
-
-		password: {
-			validator: Users.validatePassword,
-		},
-	},
-
 	res: {
 		type: 'object',
 		optional: false, nullable: false,
@@ -28,8 +18,17 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		username: Users.localUsernameSchema,
+		password: Users.passwordSchema,
+	},
+	required: ['username', 'password'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, _me) => {
+export default define(meta, paramDef, async (ps, _me) => {
 	const me = _me ? await Users.findOneOrFail(_me.id) : null;
 	const noUsers = (await Users.count({
 		host: null,

packages/backend/src/server/api/endpoints/admin/accounts/delete.ts

@@ -1,26 +1,26 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { Users } from '@/models/index';
 import { doPostSuspend } from '@/services/suspend-user';
 import { publishUserEvent } from '@/services/stream';
 import { createDeleteAccountJob } from '@/queue';
-import { ID } from '@/misc/cafy-id';
 
 export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		userId: {
+	type: 'object',
-			validator: $.type(ID),
+	properties: {
-		},
+		userId: { type: 'string', format: 'misskey:id' },
 	},
+	required: ['userId'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const user = await Users.findOne(ps.userId);
 
 	if (user == null) {

packages/backend/src/server/api/endpoints/admin/ad/create.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { Ads } from '@/models/index';
 import { genId } from '@/misc/gen-id';
@@ -8,34 +7,24 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		url: {
+	type: 'object',
-			validator: $.str.min(1),
+	properties: {
-		},
+		url: { type: 'string', minLength: 1 },
-		memo: {
+		memo: { type: 'string' },
-			validator: $.str,
+		place: { type: 'string' },
-		},
+		priority: { type: 'string' },
-		place: {
+		ratio: { type: 'integer' },
-			validator: $.str,
+		expiresAt: { type: 'integer' },
-		},
+		imageUrl: { type: 'string', minLength: 1 },
-		priority: {
-			validator: $.str,
-		},
-		ratio: {
-			validator: $.num.int().min(0),
-		},
-		expiresAt: {
-			validator: $.num.int(),
-		},
-		imageUrl: {
-			validator: $.str.min(1),
-		},
 	},
+	required: ['url', 'memo', 'place', 'priority', 'ratio', 'expiresAt', 'imageUrl'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	await Ads.insert({
 		id: genId(),
 		createdAt: new Date(),

packages/backend/src/server/api/endpoints/admin/ad/delete.ts

@@ -1,6 +1,4 @@
-import $ from 'cafy';
 import define from '../../../define';
-import { ID } from '@/misc/cafy-id';
 import { Ads } from '@/models/index';
 import { ApiError } from '../../../error';
 
@@ -10,12 +8,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		id: {
-			validator: $.type(ID),
-		},
-	},
-
 	errors: {
 		noSuchAd: {
 			message: 'No such ad.',
@@ -25,8 +17,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		id: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['id'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const ad = await Ads.findOne(ps.id);
 
 	if (ad == null) throw new ApiError(meta.errors.noSuchAd);

packages/backend/src/server/api/endpoints/admin/ad/list.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../../define';
 import { Ads } from '@/models/index';
 import { makePaginationQuery } from '../../../common/make-pagination-query';
@@ -9,29 +7,24 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		limit: {
+	type: 'object',
-			validator: $.optional.num.range(1, 100),
+	properties: {
-			default: 10,
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
-		},
+		sinceId: { type: 'string', format: 'misskey:id' },
-
+		untilId: { type: 'string', format: 'misskey:id' },
-		sinceId: {
-			validator: $.optional.type(ID),
-		},
-
-		untilId: {
-			validator: $.optional.type(ID),
-		},
 	},
+	required: [],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const query = makePaginationQuery(Ads.createQueryBuilder('ad'), ps.sinceId, ps.untilId)
 		.andWhere('ad.expiresAt > :now', { now: new Date() });
 
-	const ads = await query.take(ps.limit!).getMany();
+	const ads = await query.take(ps.limit).getMany();
 
 	return ads;
 });

packages/backend/src/server/api/endpoints/admin/ad/update.ts

@@ -1,6 +1,4 @@
-import $ from 'cafy';
 import define from '../../../define';
-import { ID } from '@/misc/cafy-id';
 import { Ads } from '@/models/index';
 import { ApiError } from '../../../error';
 
@@ -10,33 +8,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		id: {
-			validator: $.type(ID),
-		},
-		memo: {
-			validator: $.str,
-		},
-		url: {
-			validator: $.str.min(1),
-		},
-		imageUrl: {
-			validator: $.str.min(1),
-		},
-		place: {
-			validator: $.str,
-		},
-		priority: {
-			validator: $.str,
-		},
-		ratio: {
-			validator: $.num.int().min(0),
-		},
-		expiresAt: {
-			validator: $.num.int(),
-		},
-	},
-
 	errors: {
 		noSuchAd: {
 			message: 'No such ad.',
@@ -46,8 +17,23 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		id: { type: 'string', format: 'misskey:id' },
+		memo: { type: 'string' },
+		url: { type: 'string', minLength: 1 },
+		imageUrl: { type: 'string', minLength: 1 },
+		place: { type: 'string' },
+		priority: { type: 'string' },
+		ratio: { type: 'integer' },
+		expiresAt: { type: 'integer' },
+	},
+	required: ['id', 'memo', 'url', 'imageUrl', 'place', 'priority', 'ratio', 'expiresAt'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const ad = await Ads.findOne(ps.id);
 
 	if (ad == null) throw new ApiError(meta.errors.noSuchAd);

packages/backend/src/server/api/endpoints/admin/announcements/create.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { Announcements } from '@/models/index';
 import { genId } from '@/misc/gen-id';
@@ -9,18 +8,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		title: {
-			validator: $.str.min(1),
-		},
-		text: {
-			validator: $.str.min(1),
-		},
-		imageUrl: {
-			validator: $.nullable.str.min(1),
-		},
-	},
-
 	res: {
 		type: 'object',
 		optional: false, nullable: false,
@@ -57,8 +44,18 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		title: { type: 'string', minLength: 1 },
+		text: { type: 'string', minLength: 1 },
+		imageUrl: { type: 'string', nullable: true, minLength: 1 },
+	},
+	required: ['title', 'text', 'imageUrl'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const announcement = await Announcements.insert({
 		id: genId(),
 		createdAt: new Date(),

packages/backend/src/server/api/endpoints/admin/announcements/delete.ts

@@ -1,6 +1,4 @@
-import $ from 'cafy';
 import define from '../../../define';
-import { ID } from '@/misc/cafy-id';
 import { Announcements } from '@/models/index';
 import { ApiError } from '../../../error';
 
@@ -10,12 +8,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		id: {
-			validator: $.type(ID),
-		},
-	},
-
 	errors: {
 		noSuchAnnouncement: {
 			message: 'No such announcement.',
@@ -25,8 +17,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		id: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['id'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const announcement = await Announcements.findOne(ps.id);
 
 	if (announcement == null) throw new ApiError(meta.errors.noSuchAnnouncement);

packages/backend/src/server/api/endpoints/admin/announcements/list.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../../define';
 import { Announcements, AnnouncementReads } from '@/models/index';
 import { makePaginationQuery } from '../../../common/make-pagination-query';
@@ -10,21 +8,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		limit: {
-			validator: $.optional.num.range(1, 100),
-			default: 10,
-		},
-
-		sinceId: {
-			validator: $.optional.type(ID),
-		},
-
-		untilId: {
-			validator: $.optional.type(ID),
-		},
-	},
-
 	res: {
 		type: 'array',
 		optional: false, nullable: false,
@@ -69,11 +52,21 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+	},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const query = makePaginationQuery(Announcements.createQueryBuilder('announcement'), ps.sinceId, ps.untilId);
 
-	const announcements = await query.take(ps.limit!).getMany();
+	const announcements = await query.take(ps.limit).getMany();
 
 	for (const announcement of announcements) {
 		(announcement as any).reads = await AnnouncementReads.count({

packages/backend/src/server/api/endpoints/admin/announcements/update.ts

@@ -1,6 +1,4 @@
-import $ from 'cafy';
 import define from '../../../define';
-import { ID } from '@/misc/cafy-id';
 import { Announcements } from '@/models/index';
 import { ApiError } from '../../../error';
 
@@ -10,21 +8,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		id: {
-			validator: $.type(ID),
-		},
-		title: {
-			validator: $.str.min(1),
-		},
-		text: {
-			validator: $.str.min(1),
-		},
-		imageUrl: {
-			validator: $.nullable.str.min(1),
-		},
-	},
-
 	errors: {
 		noSuchAnnouncement: {
 			message: 'No such announcement.',
@@ -34,8 +17,19 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		id: { type: 'string', format: 'misskey:id' },
+		title: { type: 'string', minLength: 1 },
+		text: { type: 'string', minLength: 1 },
+		imageUrl: { type: 'string', nullable: true, minLength: 1 },
+	},
+	required: ['id', 'title', 'text', 'imageUrl'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const announcement = await Announcements.findOne(ps.id);
 
 	if (announcement == null) throw new ApiError(meta.errors.noSuchAnnouncement);

packages/backend/src/server/api/endpoints/admin/delete-all-files-of-a-user.ts

@@ -1,24 +1,24 @@
-import $ from 'cafy';
 import define from '../../define';
 import { deleteFile } from '@/services/drive/delete-file';
 import { DriveFiles } from '@/models/index';
-import { ID } from '@/misc/cafy-id';
 
 export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		userId: {
+	type: 'object',
-			validator: $.type(ID),
+	properties: {
-		},
+		userId: { type: 'string', format: 'misskey:id' },
 	},
+	required: ['userId'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const files = await DriveFiles.find({
 		userId: ps.userId,
 	});

packages/backend/src/server/api/endpoints/admin/drive/clean-remote-files.ts

@@ -8,7 +8,13 @@ export const meta = {
 	requireModerator: true,
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	createCleanRemoteFilesJob();
 });

packages/backend/src/server/api/endpoints/admin/drive/cleanup.ts

@@ -10,8 +10,14 @@ export const meta = {
 	requireModerator: true,
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const files = await DriveFiles.find({
 		userId: IsNull(),
 	});

packages/backend/src/server/api/endpoints/admin/drive/files.ts

@@ -1,8 +1,6 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { DriveFiles } from '@/models/index';
 import { makePaginationQuery } from '../../../common/make-pagination-query';
-import { ID } from '@/misc/cafy-id';
 
 export const meta = {
 	tags: ['admin'],
@@ -10,39 +8,6 @@ export const meta = {
 	requireCredential: false,
 	requireModerator: true,
 
-	params: {
-		limit: {
-			validator: $.optional.num.range(1, 100),
-			default: 10,
-		},
-
-		sinceId: {
-			validator: $.optional.type(ID),
-		},
-
-		untilId: {
-			validator: $.optional.type(ID),
-		},
-
-		type: {
-			validator: $.optional.nullable.str.match(/^[a-zA-Z0-9\/\-*]+$/),
-		},
-
-		origin: {
-			validator: $.optional.str.or([
-				'combined',
-				'local',
-				'remote',
-			]),
-			default: 'local',
-		},
-
-		hostname: {
-			validator: $.optional.nullable.str,
-			default: null,
-		},
-	},
-
 	res: {
 		type: 'array',
 		optional: false, nullable: false,
@@ -54,8 +19,21 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+		type: { type: 'string', nullable: true, pattern: /^[a-zA-Z0-9\/\-*]+$/.toString().slice(1, -1) },
+		origin: { type: 'string', enum: ['combined', 'local', 'remote'], default: "local" },
+		hostname: { type: 'string', nullable: true, default: null },
+	},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const query = makePaginationQuery(DriveFiles.createQueryBuilder('file'), ps.sinceId, ps.untilId);
 
 	if (ps.origin === 'local') {
@@ -76,7 +54,7 @@ export default define(meta, async (ps, me) => {
 		}
 	}
 
-	const files = await query.take(ps.limit!).getMany();
+	const files = await query.take(ps.limit).getMany();
 
 	return await DriveFiles.packMany(files, { detail: true, withUser: true, self: true });
 });

packages/backend/src/server/api/endpoints/admin/drive/show-file.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../../define';
 import { ApiError } from '../../../error';
 import { DriveFiles } from '@/models/index';
@@ -10,16 +8,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		fileId: {
-			validator: $.optional.type(ID),
-		},
-
-		url: {
-			validator: $.optional.str,
-		},
-	},
-
 	errors: {
 		noSuchFile: {
 			message: 'No such file.',
@@ -161,8 +149,17 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		fileId: { type: 'string', format: 'misskey:id' },
+		url: { type: 'string' },
+	},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const file = ps.fileId ? await DriveFiles.findOne(ps.fileId) : await DriveFiles.findOne({
 		where: [{
 			url: ps.url,

packages/backend/src/server/api/endpoints/admin/emoji/add-aliases-bulk.ts

@@ -1,6 +1,4 @@
-import $ from 'cafy';
 import define from '../../../define';
-import { ID } from '@/misc/cafy-id';
 import { Emojis } from '@/models/index';
 import { getConnection, In } from 'typeorm';
 import { ApiError } from '../../../error';
@@ -10,20 +8,23 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		ids: {
+	type: 'object',
-			validator: $.arr($.type(ID)),
+	properties: {
-		},
+		ids: { type: 'array', items: {
-
+			type: 'string', format: 'misskey:id',
-		aliases: {
+		} },
-			validator: $.arr($.str),
+		aliases: { type: 'array', items: {
-		},
+			type: 'string',
+		} },
 	},
+	required: ['ids', 'aliases'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const emojis = await Emojis.find({
 		id: In(ps.ids),
 	});

packages/backend/src/server/api/endpoints/admin/emoji/add.ts

@@ -1,11 +1,9 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { Emojis, DriveFiles } from '@/models/index';
 import { genId } from '@/misc/gen-id';
 import { getConnection } from 'typeorm';
 import { insertModerationLog } from '@/services/insert-moderation-log';
 import { ApiError } from '../../../error';
-import { ID } from '@/misc/cafy-id';
 import rndstr from 'rndstr';
 import { publishBroadcastStream } from '@/services/stream';
 
@@ -15,12 +13,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		fileId: {
-			validator: $.type(ID),
-		},
-	},
-
 	errors: {
 		noSuchFile: {
 			message: 'No such file.',
@@ -30,8 +22,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		fileId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['fileId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const file = await DriveFiles.findOne(ps.fileId);
 
 	if (file == null) throw new ApiError(meta.errors.noSuchFile);

packages/backend/src/server/api/endpoints/admin/emoji/copy.ts

@@ -1,11 +1,9 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { Emojis } from '@/models/index';
 import { genId } from '@/misc/gen-id';
 import { getConnection } from 'typeorm';
 import { ApiError } from '../../../error';
 import { DriveFile } from '@/models/entities/drive-file';
-import { ID } from '@/misc/cafy-id';
 import { uploadFromUrl } from '@/services/drive/upload-from-url';
 import { publishBroadcastStream } from '@/services/stream';
 
@@ -15,12 +13,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		emojiId: {
-			validator: $.type(ID),
-		},
-	},
-
 	errors: {
 		noSuchEmoji: {
 			message: 'No such emoji.',
@@ -42,8 +34,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		emojiId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['emojiId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const emoji = await Emojis.findOne(ps.emojiId);
 
 	if (emoji == null) {

packages/backend/src/server/api/endpoints/admin/emoji/delete-bulk.ts

@@ -1,6 +1,4 @@
-import $ from 'cafy';
 import define from '../../../define';
-import { ID } from '@/misc/cafy-id';
 import { Emojis } from '@/models/index';
 import { getConnection, In } from 'typeorm';
 import { insertModerationLog } from '@/services/insert-moderation-log';
@@ -11,16 +9,20 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		ids: {
+	type: 'object',
-			validator: $.arr($.type(ID)),
+	properties: {
-		},
+		ids: { type: 'array', items: {
+			type: 'string', format: 'misskey:id',
+		} },
 	},
+	required: ['ids'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const emojis = await Emojis.find({
 		id: In(ps.ids),
 	});

packages/backend/src/server/api/endpoints/admin/emoji/delete.ts

@@ -1,6 +1,4 @@
-import $ from 'cafy';
 import define from '../../../define';
-import { ID } from '@/misc/cafy-id';
 import { Emojis } from '@/models/index';
 import { getConnection } from 'typeorm';
 import { insertModerationLog } from '@/services/insert-moderation-log';
@@ -12,12 +10,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		id: {
-			validator: $.type(ID),
-		},
-	},
-
 	errors: {
 		noSuchEmoji: {
 			message: 'No such emoji.',
@@ -27,8 +19,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		id: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['id'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const emoji = await Emojis.findOne(ps.id);
 
 	if (emoji == null) throw new ApiError(meta.errors.noSuchEmoji);

packages/backend/src/server/api/endpoints/admin/emoji/import-zip.ts

@@ -1,21 +1,22 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { createImportCustomEmojisJob } from '@/queue/index';
 import ms from 'ms';
-import { ID } from '@/misc/cafy-id';
 
 export const meta = {
 	secure: true,
 	requireCredential: true,
 	requireModerator: true,
-	params: {
+} as const;
-		fileId: {
+
-			validator: $.type(ID),
+const paramDef = {
-		},
+	type: 'object',
+	properties: {
+		fileId: { type: 'string', format: 'misskey:id' },
 	},
+	required: ['fileId'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	createImportCustomEmojisJob(user, ps.fileId);
 });

packages/backend/src/server/api/endpoints/admin/emoji/list-remote.ts

@@ -1,9 +1,7 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { Emojis } from '@/models/index';
 import { toPuny } from '@/misc/convert-host';
 import { makePaginationQuery } from '../../../common/make-pagination-query';
-import { ID } from '@/misc/cafy-id';
 
 export const meta = {
 	tags: ['admin'],
@@ -11,31 +9,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		query: {
-			validator: $.optional.nullable.str,
-			default: null,
-		},
-
-		host: {
-			validator: $.optional.nullable.str,
-			default: null,
-		},
-
-		limit: {
-			validator: $.optional.num.range(1, 100),
-			default: 10,
-		},
-
-		sinceId: {
-			validator: $.optional.type(ID),
-		},
-
-		untilId: {
-			validator: $.optional.type(ID),
-		},
-	},
-
 	res: {
 		type: 'array',
 		optional: false, nullable: false,
@@ -77,8 +50,20 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		query: { type: 'string', nullable: true, default: null },
+		host: { type: 'string', nullable: true, default: null },
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+	},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const q = makePaginationQuery(Emojis.createQueryBuilder('emoji'), ps.sinceId, ps.untilId);
 
 	if (ps.host == null) {
@@ -93,7 +78,7 @@ export default define(meta, async (ps) => {
 
 	const emojis = await q
 		.orderBy('emoji.id', 'DESC')
-		.take(ps.limit!)
+		.take(ps.limit)
 		.getMany();
 
 	return Emojis.packMany(emojis);

packages/backend/src/server/api/endpoints/admin/emoji/list.ts

@@ -1,8 +1,6 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { Emojis } from '@/models/index';
 import { makePaginationQuery } from '../../../common/make-pagination-query';
-import { ID } from '@/misc/cafy-id';
 import { Emoji } from '@/models/entities/emoji';
 
 export const meta = {
@@ -11,26 +9,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		query: {
-			validator: $.optional.nullable.str,
-			default: null,
-		},
-
-		limit: {
-			validator: $.optional.num.range(1, 100),
-			default: 10,
-		},
-
-		sinceId: {
-			validator: $.optional.type(ID),
-		},
-
-		untilId: {
-			validator: $.optional.type(ID),
-		},
-	},
-
 	res: {
 		type: 'array',
 		optional: false, nullable: false,
@@ -72,8 +50,19 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		query: { type: 'string', nullable: true, default: null },
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+	},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const q = makePaginationQuery(Emojis.createQueryBuilder('emoji'), ps.sinceId, ps.untilId)
 		.andWhere(`emoji.host IS NULL`);
 
@@ -81,7 +70,7 @@ export default define(meta, async (ps) => {
 
 	if (ps.query) {
 		//q.andWhere('emoji.name ILIKE :q', { q: `%${ps.query}%` });
-		//const emojis = await q.take(ps.limit!).getMany();
+		//const emojis = await q.take(ps.limit).getMany();
 
 		emojis = await q.getMany();
 
@@ -90,9 +79,9 @@ export default define(meta, async (ps) => {
 			emoji.aliases.some(a => a.includes(ps.query!)) ||
 			emoji.category?.includes(ps.query!));
 
-		emojis.splice(ps.limit! + 1);
+		emojis.splice(ps.limit + 1);
 	} else {
-		emojis = await q.take(ps.limit!).getMany();
+		emojis = await q.take(ps.limit).getMany();
 	}
 
 	return Emojis.packMany(emojis);

packages/backend/src/server/api/endpoints/admin/emoji/remove-aliases-bulk.ts

@@ -1,6 +1,4 @@
-import $ from 'cafy';
 import define from '../../../define';
-import { ID } from '@/misc/cafy-id';
 import { Emojis } from '@/models/index';
 import { getConnection, In } from 'typeorm';
 import { ApiError } from '../../../error';
@@ -10,20 +8,23 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		ids: {
+	type: 'object',
-			validator: $.arr($.type(ID)),
+	properties: {
-		},
+		ids: { type: 'array', items: {
-
+			type: 'string', format: 'misskey:id',
-		aliases: {
+		} },
-			validator: $.arr($.str),
+		aliases: { type: 'array', items: {
-		},
+			type: 'string',
+		} },
 	},
+	required: ['ids', 'aliases'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const emojis = await Emojis.find({
 		id: In(ps.ids),
 	});

packages/backend/src/server/api/endpoints/admin/emoji/set-aliases-bulk.ts

@@ -1,6 +1,4 @@
-import $ from 'cafy';
 import define from '../../../define';
-import { ID } from '@/misc/cafy-id';
 import { Emojis } from '@/models/index';
 import { getConnection, In } from 'typeorm';
 import { ApiError } from '../../../error';
@@ -10,20 +8,23 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		ids: {
+	type: 'object',
-			validator: $.arr($.type(ID)),
+	properties: {
-		},
+		ids: { type: 'array', items: {
-
+			type: 'string', format: 'misskey:id',
-		aliases: {
+		} },
-			validator: $.arr($.str),
+		aliases: { type: 'array', items: {
-		},
+			type: 'string',
+		} },
 	},
+	required: ['ids', 'aliases'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	await Emojis.update({
 		id: In(ps.ids),
 	}, {

packages/backend/src/server/api/endpoints/admin/emoji/set-category-bulk.ts

@@ -1,6 +1,4 @@
-import $ from 'cafy';
 import define from '../../../define';
-import { ID } from '@/misc/cafy-id';
 import { Emojis } from '@/models/index';
 import { getConnection, In } from 'typeorm';
 import { ApiError } from '../../../error';
@@ -10,20 +8,21 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		ids: {
+	type: 'object',
-			validator: $.arr($.type(ID)),
+	properties: {
-		},
+		ids: { type: 'array', items: {
-
+			type: 'string', format: 'misskey:id',
-		category: {
+		} },
-			validator: $.optional.nullable.str,
+		category: { type: 'string', nullable: true },
-		},
 	},
+	required: ['ids'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	await Emojis.update({
 		id: In(ps.ids),
 	}, {

packages/backend/src/server/api/endpoints/admin/emoji/update.ts

@@ -1,6 +1,4 @@
-import $ from 'cafy';
 import define from '../../../define';
-import { ID } from '@/misc/cafy-id';
 import { Emojis } from '@/models/index';
 import { getConnection } from 'typeorm';
 import { ApiError } from '../../../error';
@@ -11,24 +9,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		id: {
-			validator: $.type(ID),
-		},
-
-		name: {
-			validator: $.str,
-		},
-
-		category: {
-			validator: $.optional.nullable.str,
-		},
-
-		aliases: {
-			validator: $.arr($.str),
-		},
-	},
-
 	errors: {
 		noSuchEmoji: {
 			message: 'No such emoji.',
@@ -38,8 +18,21 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		id: { type: 'string', format: 'misskey:id' },
+		name: { type: 'string' },
+		category: { type: 'string', nullable: true },
+		aliases: { type: 'array', items: {
+			type: 'string',
+		} },
+	},
+	required: ['id', 'name', 'aliases'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const emoji = await Emojis.findOne(ps.id);
 
 	if (emoji == null) throw new ApiError(meta.errors.noSuchEmoji);

packages/backend/src/server/api/endpoints/admin/federation/delete-all-files.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { deleteFile } from '@/services/drive/delete-file';
 import { DriveFiles } from '@/models/index';
@@ -8,16 +7,18 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		host: {
+	type: 'object',
-			validator: $.str,
+	properties: {
-		},
+		host: { type: 'string' },
 	},
+	required: ['host'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const files = await DriveFiles.find({
 		userHost: ps.host,
 	});

packages/backend/src/server/api/endpoints/admin/federation/refresh-remote-instance-metadata.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { Instances } from '@/models/index';
 import { toPuny } from '@/misc/convert-host';
@@ -9,16 +8,18 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		host: {
+	type: 'object',
-			validator: $.str,
+	properties: {
-		},
+		host: { type: 'string' },
 	},
+	required: ['host'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const instance = await Instances.findOne({ host: toPuny(ps.host) });
 
 	if (instance == null) {

packages/backend/src/server/api/endpoints/admin/federation/remove-all-following.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../../define';
 import deleteFollowing from '@/services/following/delete';
 import { Followings, Users } from '@/models/index';
@@ -8,16 +7,18 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		host: {
+	type: 'object',
-			validator: $.str,
+	properties: {
-		},
+		host: { type: 'string' },
 	},
+	required: ['host'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const followings = await Followings.find({
 		followerHost: ps.host,
 	});

packages/backend/src/server/api/endpoints/admin/federation/update-instance.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { Instances } from '@/models/index';
 import { toPuny } from '@/misc/convert-host';
@@ -8,20 +7,19 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		host: {
+	type: 'object',
-			validator: $.str,
+	properties: {
-		},
+		host: { type: 'string' },
-
+		isSuspended: { type: 'boolean' },
-		isSuspended: {
-			validator: $.bool,
-		},
 	},
+	required: ['host', 'isSuspended'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const instance = await Instances.findOne({ host: toPuny(ps.host) });
 
 	if (instance == null) {

packages/backend/src/server/api/endpoints/admin/get-index-stats.ts

@@ -6,13 +6,16 @@ export const meta = {
 	requireModerator: true,
 
 	tags: ['admin'],
+} as const;
 
-	params: {
+const paramDef = {
-	},
+	type: 'object',
+	properties: {},
+	required: [],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async () => {
+export default define(meta, paramDef, async () => {
 	const stats = await
 		getConnection().query(`SELECT * FROM pg_indexes;`)
 		.then(recs => {

packages/backend/src/server/api/endpoints/admin/get-table-stats.ts

@@ -7,9 +7,6 @@ export const meta = {
 
 	tags: ['admin'],
 
-	params: {
-	},
-
 	res: {
 		type: 'object',
 		optional: false, nullable: false,
@@ -22,8 +19,14 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async () => {
+export default define(meta, paramDef, async () => {
 	const sizes = await
 		getConnection().query(`
 			SELECT relname AS "table", reltuples as "count", pg_total_relation_size(C.oid) AS "size"

packages/backend/src/server/api/endpoints/admin/invite.ts

@@ -9,8 +9,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {},
-
 	res: {
 		type: 'object',
 		optional: false, nullable: false,
@@ -26,8 +24,14 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async () => {
+export default define(meta, paramDef, async () => {
 	const code = rndstr({
 		length: 8,
 		chars: '2-9A-HJ-NP-Z', // [0-9A-Z] w/o [01IO] (32 patterns)

packages/backend/src/server/api/endpoints/admin/moderators/add.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../../define';
 import { Users } from '@/models/index';
 
@@ -8,16 +6,18 @@ export const meta = {
 
 	requireCredential: true,
 	requireAdmin: true,
+} as const;
 
-	params: {
+const paramDef = {
-		userId: {
+	type: 'object',
-			validator: $.type(ID),
+	properties: {
-		},
+		userId: { type: 'string', format: 'misskey:id' },
 	},
+	required: ['userId'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const user = await Users.findOne(ps.userId as string);
 
 	if (user == null) {

packages/backend/src/server/api/endpoints/admin/moderators/remove.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../../define';
 import { Users } from '@/models/index';
 
@@ -8,16 +6,18 @@ export const meta = {
 
 	requireCredential: true,
 	requireAdmin: true,
+} as const;
 
-	params: {
+const paramDef = {
-		userId: {
+	type: 'object',
-			validator: $.type(ID),
+	properties: {
-		},
+		userId: { type: 'string', format: 'misskey:id' },
 	},
+	required: ['userId'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const user = await Users.findOne(ps.userId as string);
 
 	if (user == null) {

packages/backend/src/server/api/endpoints/admin/promo/create.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../../define';
 import { ApiError } from '../../../error';
 import { getNote } from '../../../common/getters';
@@ -11,16 +9,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		noteId: {
-			validator: $.type(ID),
-		},
-
-		expiresAt: {
-			validator: $.num.int(),
-		},
-	},
-
 	errors: {
 		noSuchNote: {
 			message: 'No such note.',
@@ -36,8 +24,17 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		noteId: { type: 'string', format: 'misskey:id' },
+		expiresAt: { type: 'integer' },
+	},
+	required: ['noteId', 'expiresAt'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	const note = await getNote(ps.noteId).catch(e => {
 		if (e.id === '9725d0ce-ba28-4dde-95a7-2cbb2c15de24') throw new ApiError(meta.errors.noSuchNote);
 		throw e;

packages/backend/src/server/api/endpoints/admin/queue/clear.ts

@@ -7,12 +7,16 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {},
+const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	destroy();
 
 	insertModerationLog(me, 'clearQueue');

packages/backend/src/server/api/endpoints/admin/queue/deliver-delayed.ts

@@ -8,9 +8,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-	},
-
 	res: {
 		type: 'array',
 		optional: false, nullable: false,
@@ -35,8 +32,14 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const jobs = await deliverQueue.getJobs(['delayed']);
 
 	const res = [] as [string, number][];

packages/backend/src/server/api/endpoints/admin/queue/inbox-delayed.ts

@@ -8,9 +8,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-	},
-
 	res: {
 		type: 'array',
 		optional: false, nullable: false,
@@ -35,8 +32,14 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const jobs = await inboxQueue.getJobs(['delayed']);
 
 	const res = [] as [string, number][];

packages/backend/src/server/api/endpoints/admin/queue/stats.ts

@@ -7,8 +7,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {},
-
 	res: {
 		type: 'object',
 		optional: false, nullable: false,
@@ -33,8 +31,14 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const deliverJobCounts = await deliverQueue.getJobCounts();
 	const inboxJobCounts = await inboxQueue.getJobCounts();
 	const dbJobCounts = await dbQueue.getJobCounts();

packages/backend/src/server/api/endpoints/admin/relays/add.ts

@@ -1,5 +1,4 @@
 import { URL } from 'url';
-import $ from 'cafy';
 import define from '../../../define';
 import { addRelay } from '@/services/relay';
 import { ApiError } from '../../../error';
@@ -10,12 +9,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		inbox: {
-			validator: $.str,
-		},
-	},
-
 	errors: {
 		invalidUrl: {
 			message: 'Invalid URL',
@@ -52,8 +45,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		inbox: { type: 'string' },
+	},
+	required: ['inbox'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	try {
 		if (new URL(ps.inbox).protocol !== 'https:') throw 'https only';
 	} catch {

packages/backend/src/server/api/endpoints/admin/relays/list.ts

@@ -7,9 +7,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-	},
-
 	res: {
 		type: 'array',
 		optional: false, nullable: false,
@@ -42,7 +39,13 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	return await listRelay();
 });

packages/backend/src/server/api/endpoints/admin/relays/remove.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { removeRelay } from '@/services/relay';
 
@@ -7,15 +6,17 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		inbox: {
+	type: 'object',
-			validator: $.str,
+	properties: {
-		},
+		inbox: { type: 'string' },
 	},
+	required: ['inbox'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	return await removeRelay(ps.inbox);
 });

packages/backend/src/server/api/endpoints/admin/reset-password.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import * as bcrypt from 'bcryptjs';
 import rndstr from 'rndstr';
@@ -11,12 +9,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		userId: {
-			validator: $.type(ID),
-		},
-	},
-
 	res: {
 		type: 'object',
 		optional: false, nullable: false,
@@ -31,8 +23,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		userId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['userId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const user = await Users.findOne(ps.userId as string);
 
 	if (user == null) {

packages/backend/src/server/api/endpoints/admin/resolve-abuse-user-report.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { AbuseUserReports, Users } from '@/models/index';
 import { getInstanceActor } from '@/services/instance-actor';
@@ -12,22 +10,19 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		reportId: {
+	type: 'object',
-			validator: $.type(ID),
+	properties: {
-		},
+		reportId: { type: 'string', format: 'misskey:id' },
-
+		forward: { type: 'boolean', default: false },
-		forward: {
-			validator: $.optional.boolean,
-			required: false,
-			default: false,
-		},
 	},
+	required: ['reportId'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const report = await AbuseUserReports.findOne(ps.reportId);
 
 	if (report == null) {

packages/backend/src/server/api/endpoints/admin/send-email.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../define';
 import { sendEmail } from '@/services/send-email';
 
@@ -7,21 +6,19 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		to: {
+	type: 'object',
-			validator: $.str,
+	properties: {
-		},
+		to: { type: 'string' },
-		subject: {
+		subject: { type: 'string' },
-			validator: $.str,
+		text: { type: 'string' },
-		},
-		text: {
-			validator: $.str,
-		},
 	},
+	required: ['to', 'subject', 'text'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	await sendEmail(ps.to, ps.subject, ps.text, ps.text);
 });

packages/backend/src/server/api/endpoints/admin/server-info.ts

@@ -10,9 +10,6 @@ export const meta = {
 
 	tags: ['admin', 'meta'],
 
-	params: {
-	},
-
 	res: {
 		type: 'object',
 		optional: false, nullable: false,
@@ -90,8 +87,14 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async () => {
+export default define(meta, paramDef, async () => {
 	const memStats = await si.mem();
 	const fsStats = await si.fsSize();
 	const netInterface = await si.networkInterfaceDefault();

packages/backend/src/server/api/endpoints/admin/show-moderation-logs.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { ModerationLogs } from '@/models/index';
 import { makePaginationQuery } from '../../common/make-pagination-query';
@@ -10,21 +8,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		limit: {
-			validator: $.optional.num.range(1, 100),
-			default: 10,
-		},
-
-		sinceId: {
-			validator: $.optional.type(ID),
-		},
-
-		untilId: {
-			validator: $.optional.type(ID),
-		},
-	},
-
 	res: {
 		type: 'array',
 		optional: false, nullable: false,
@@ -65,11 +48,21 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+	},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const query = makePaginationQuery(ModerationLogs.createQueryBuilder('report'), ps.sinceId, ps.untilId);
 
-	const reports = await query.take(ps.limit!).getMany();
+	const reports = await query.take(ps.limit).getMany();
 
 	return await ModerationLogs.packMany(reports);
 });

packages/backend/src/server/api/endpoints/admin/show-user.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { Users } from '@/models/index';
 
@@ -9,20 +7,22 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		userId: {
-			validator: $.type(ID),
-		},
-	},
-
 	res: {
 		type: 'object',
 		nullable: false, optional: false,
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		userId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['userId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const user = await Users.findOne(ps.userId as string);
 
 	if (user == null) {

packages/backend/src/server/api/endpoints/admin/show-users.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../define';
 import { Users } from '@/models/index';
 
@@ -8,61 +7,6 @@ export const meta = {
 	requireCredential: true,
 	requireModerator: true,
 
-	params: {
-		limit: {
-			validator: $.optional.num.range(1, 100),
-			default: 10,
-		},
-
-		offset: {
-			validator: $.optional.num.min(0),
-			default: 0,
-		},
-
-		sort: {
-			validator: $.optional.str.or([
-				'+follower',
-				'-follower',
-				'+createdAt',
-				'-createdAt',
-				'+updatedAt',
-				'-updatedAt',
-			]),
-		},
-
-		state: {
-			validator: $.optional.str.or([
-				'all',
-				'available',
-				'admin',
-				'moderator',
-				'adminOrModerator',
-				'silenced',
-				'suspended',
-			]),
-			default: 'all',
-		},
-
-		origin: {
-			validator: $.optional.str.or([
-				'combined',
-				'local',
-				'remote',
-			]),
-			default: 'local',
-		},
-
-		username: {
-			validator: $.optional.str,
-			default: null,
-		},
-
-		hostname: {
-			validator: $.optional.str,
-			default: null,
-		},
-	},
-
 	res: {
 		type: 'array',
 		nullable: false, optional: false,
@@ -74,8 +18,22 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		offset: { type: 'integer', default: 0 },
+		sort: { type: 'string', enum: ['+follower', '-follower', '+createdAt', '-createdAt', '+updatedAt', '-updatedAt'] },
+		state: { type: 'string', enum: ['all', 'available', 'admin', 'moderator', 'adminOrModerator', 'silenced', 'suspended'], default: "all" },
+		origin: { type: 'string', enum: ['combined', 'local', 'remote'], default: "local" },
+		username: { type: 'string', default: null },
+		hostname: { type: 'string', default: null },
+	},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const query = Users.createQueryBuilder('user');
 
 	switch (ps.state) {
@@ -111,7 +69,7 @@ export default define(meta, async (ps, me) => {
 		default: query.orderBy('user.id', 'ASC'); break;
 	}
 
-	query.take(ps.limit!);
+	query.take(ps.limit);
 	query.skip(ps.offset);
 
 	const users = await query.getMany();

packages/backend/src/server/api/endpoints/admin/silence-user.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { Users } from '@/models/index';
 import { insertModerationLog } from '@/services/insert-moderation-log';
@@ -9,16 +7,18 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		userId: {
+	type: 'object',
-			validator: $.type(ID),
+	properties: {
-		},
+		userId: { type: 'string', format: 'misskey:id' },
 	},
+	required: ['userId'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const user = await Users.findOne(ps.userId as string);
 
 	if (user == null) {

packages/backend/src/server/api/endpoints/admin/suspend-user.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import deleteFollowing from '@/services/following/delete';
 import { Users, Followings, Notifications } from '@/models/index';
@@ -13,16 +11,18 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		userId: {
+	type: 'object',
-			validator: $.type(ID),
+	properties: {
-		},
+		userId: { type: 'string', format: 'misskey:id' },
 	},
+	required: ['userId'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const user = await Users.findOne(ps.userId as string);
 
 	if (user == null) {

packages/backend/src/server/api/endpoints/admin/unsilence-user.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { Users } from '@/models/index';
 import { insertModerationLog } from '@/services/insert-moderation-log';
@@ -9,16 +7,18 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		userId: {
+	type: 'object',
-			validator: $.type(ID),
+	properties: {
-		},
+		userId: { type: 'string', format: 'misskey:id' },
 	},
+	required: ['userId'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const user = await Users.findOne(ps.userId as string);
 
 	if (user == null) {

packages/backend/src/server/api/endpoints/admin/unsuspend-user.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { Users } from '@/models/index';
 import { insertModerationLog } from '@/services/insert-moderation-log';
@@ -10,16 +8,18 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		userId: {
+	type: 'object',
-			validator: $.type(ID),
+	properties: {
-		},
+		userId: { type: 'string', format: 'misskey:id' },
 	},
+	required: ['userId'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const user = await Users.findOne(ps.userId as string);
 
 	if (user == null) {

packages/backend/src/server/api/endpoints/admin/update-meta.ts

@@ -1,310 +1,107 @@
-import $ from 'cafy';
 import define from '../../define';
 import { getConnection } from 'typeorm';
 import { Meta } from '@/models/entities/meta';
 import { insertModerationLog } from '@/services/insert-moderation-log';
 import { DB_MAX_NOTE_TEXT_LENGTH } from '@/misc/hard-limits';
-import { ID } from '@/misc/cafy-id';
 
 export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
 	requireAdmin: true,
-
+} as const;
-	params: {
+
-		disableRegistration: {
+const paramDef = {
-			validator: $.optional.nullable.bool,
+	type: 'object',
-		},
+	properties: {
-
+		disableRegistration: { type: 'boolean', nullable: true },
-		disableLocalTimeline: {
+		disableLocalTimeline: { type: 'boolean', nullable: true },
-			validator: $.optional.nullable.bool,
+		disableGlobalTimeline: { type: 'boolean', nullable: true },
-		},
+		useStarForReactionFallback: { type: 'boolean', nullable: true },
-
+		pinnedUsers: { type: 'array', nullable: true, items: {
-		disableGlobalTimeline: {
+			type: 'string',
-			validator: $.optional.nullable.bool,
+		} },
-		},
+		hiddenTags: { type: 'array', nullable: true, items: {
-
+			type: 'string',
-		useStarForReactionFallback: {
+		} },
-			validator: $.optional.nullable.bool,
+		blockedHosts: { type: 'array', nullable: true, items: {
-		},
+			type: 'string',
-
+		} },
-		pinnedUsers: {
+		themeColor: { type: 'string', nullable: true },
-			validator: $.optional.nullable.arr($.str),
+		mascotImageUrl: { type: 'string', nullable: true },
-		},
+		bannerUrl: { type: 'string', nullable: true },
-
+		errorImageUrl: { type: 'string', nullable: true },
-		hiddenTags: {
+		iconUrl: { type: 'string', nullable: true },
-			validator: $.optional.nullable.arr($.str),
+		backgroundImageUrl: { type: 'string', nullable: true },
-		},
+		logoImageUrl: { type: 'string', nullable: true },
-
+		name: { type: 'string', nullable: true },
-		blockedHosts: {
+		description: { type: 'string', nullable: true },
-			validator: $.optional.nullable.arr($.str),
+		maxNoteTextLength: { type: 'integer', maximum: 8192 },
-		},
+		localDriveCapacityMb: { type: 'integer' },
-
+		remoteDriveCapacityMb: { type: 'integer' },
-		themeColor: {
+		cacheRemoteFiles: { type: 'boolean' },
-			validator: $.optional.nullable.str,
+		proxyRemoteFiles: { type: 'boolean' },
-		},
+		emailRequiredForSignup: { type: 'boolean' },
-
+		enableHcaptcha: { type: 'boolean' },
-		mascotImageUrl: {
+		hcaptchaSiteKey: { type: 'string', nullable: true },
-			validator: $.optional.nullable.str,
+		hcaptchaSecretKey: { type: 'string', nullable: true },
-		},
+		enableRecaptcha: { type: 'boolean' },
-
+		recaptchaSiteKey: { type: 'string', nullable: true },
-		bannerUrl: {
+		recaptchaSecretKey: { type: 'string', nullable: true },
-			validator: $.optional.nullable.str,
+		proxyAccountId: { type: 'string', format: 'misskey:id', nullable: true },
-		},
+		maintainerName: { type: 'string', nullable: true },
-
+		maintainerEmail: { type: 'string', nullable: true },
-		errorImageUrl: {
+		pinnedPages: { type: 'array', items: {
-			validator: $.optional.nullable.str,
+			type: 'string',
-		},
+		} },
-
+		pinnedClipId: { type: 'string', format: 'misskey:id', nullable: true },
-		iconUrl: {
+		langs: { type: 'array', items: {
-			validator: $.optional.nullable.str,
+			type: 'string',
-		},
+		} },
-
+		summalyProxy: { type: 'string', nullable: true },
-		backgroundImageUrl: {
+		deeplAuthKey: { type: 'string', nullable: true },
-			validator: $.optional.nullable.str,
+		deeplIsPro: { type: 'boolean' },
-		},
+		enableTwitterIntegration: { type: 'boolean' },
-
+		twitterConsumerKey: { type: 'string', nullable: true },
-		logoImageUrl: {
+		twitterConsumerSecret: { type: 'string', nullable: true },
-			validator: $.optional.nullable.str,
+		enableGithubIntegration: { type: 'boolean' },
-		},
+		githubClientId: { type: 'string', nullable: true },
-
+		githubClientSecret: { type: 'string', nullable: true },
-		name: {
+		enableDiscordIntegration: { type: 'boolean' },
-			validator: $.optional.nullable.str,
+		discordClientId: { type: 'string', nullable: true },
-		},
+		discordClientSecret: { type: 'string', nullable: true },
-
+		enableEmail: { type: 'boolean' },
-		description: {
+		email: { type: 'string', nullable: true },
-			validator: $.optional.nullable.str,
+		smtpSecure: { type: 'boolean' },
-		},
+		smtpHost: { type: 'string', nullable: true },
-
+		smtpPort: { type: 'integer', nullable: true },
-		maxNoteTextLength: {
+		smtpUser: { type: 'string', nullable: true },
-			validator: $.optional.num.min(0).max(DB_MAX_NOTE_TEXT_LENGTH),
+		smtpPass: { type: 'string', nullable: true },
-		},
+		enableServiceWorker: { type: 'boolean' },
-
+		swPublicKey: { type: 'string', nullable: true },
-		localDriveCapacityMb: {
+		swPrivateKey: { type: 'string', nullable: true },
-			validator: $.optional.num.min(0),
+		tosUrl: { type: 'string', nullable: true },
-		},
+		repositoryUrl: { type: 'string' },
-
+		feedbackUrl: { type: 'string' },
-		remoteDriveCapacityMb: {
+		useObjectStorage: { type: 'boolean' },
-			validator: $.optional.num.min(0),
+		objectStorageBaseUrl: { type: 'string', nullable: true },
-		},
+		objectStorageBucket: { type: 'string', nullable: true },
-
+		objectStoragePrefix: { type: 'string', nullable: true },
-		cacheRemoteFiles: {
+		objectStorageEndpoint: { type: 'string', nullable: true },
-			validator: $.optional.bool,
+		objectStorageRegion: { type: 'string', nullable: true },
-		},
+		objectStoragePort: { type: 'integer', nullable: true },
-
+		objectStorageAccessKey: { type: 'string', nullable: true },
-		proxyRemoteFiles: {
+		objectStorageSecretKey: { type: 'string', nullable: true },
-			validator: $.optional.bool,
+		objectStorageUseSSL: { type: 'boolean' },
-		},
+		objectStorageUseProxy: { type: 'boolean' },
-
+		objectStorageSetPublicRead: { type: 'boolean' },
-		emailRequiredForSignup: {
+		objectStorageS3ForcePathStyle: { type: 'boolean' },
-			validator: $.optional.bool,
-		},
-
-		enableHcaptcha: {
-			validator: $.optional.bool,
-		},
-
-		hcaptchaSiteKey: {
-			validator: $.optional.nullable.str,
-		},
-
-		hcaptchaSecretKey: {
-			validator: $.optional.nullable.str,
-		},
-
-		enableRecaptcha: {
-			validator: $.optional.bool,
-		},
-
-		recaptchaSiteKey: {
-			validator: $.optional.nullable.str,
-		},
-
-		recaptchaSecretKey: {
-			validator: $.optional.nullable.str,
-		},
-
-		proxyAccountId: {
-			validator: $.optional.nullable.type(ID),
-		},
-
-		maintainerName: {
-			validator: $.optional.nullable.str,
-		},
-
-		maintainerEmail: {
-			validator: $.optional.nullable.str,
-		},
-
-		pinnedPages: {
-			validator: $.optional.arr($.str),
-		},
-
-		pinnedClipId: {
-			validator: $.optional.nullable.type(ID),
-		},
-
-		langs: {
-			validator: $.optional.arr($.str),
-		},
-
-		summalyProxy: {
-			validator: $.optional.nullable.str,
-		},
-
-		deeplAuthKey: {
-			validator: $.optional.nullable.str,
-		},
-
-		deeplIsPro: {
-			validator: $.optional.bool,
-		},
-
-		enableTwitterIntegration: {
-			validator: $.optional.bool,
-		},
-
-		twitterConsumerKey: {
-			validator: $.optional.nullable.str,
-		},
-
-		twitterConsumerSecret: {
-			validator: $.optional.nullable.str,
-		},
-
-		enableGithubIntegration: {
-			validator: $.optional.bool,
-		},
-
-		githubClientId: {
-			validator: $.optional.nullable.str,
-		},
-
-		githubClientSecret: {
-			validator: $.optional.nullable.str,
-		},
-
-		enableDiscordIntegration: {
-			validator: $.optional.bool,
-		},
-
-		discordClientId: {
-			validator: $.optional.nullable.str,
-		},
-
-		discordClientSecret: {
-			validator: $.optional.nullable.str,
-		},
-
-		enableEmail: {
-			validator: $.optional.bool,
-		},
-
-		email: {
-			validator: $.optional.nullable.str,
-		},
-
-		smtpSecure: {
-			validator: $.optional.bool,
-		},
-
-		smtpHost: {
-			validator: $.optional.nullable.str,
-		},
-
-		smtpPort: {
-			validator: $.optional.nullable.num,
-		},
-
-		smtpUser: {
-			validator: $.optional.nullable.str,
-		},
-
-		smtpPass: {
-			validator: $.optional.nullable.str,
-		},
-
-		enableServiceWorker: {
-			validator: $.optional.bool,
-		},
-
-		swPublicKey: {
-			validator: $.optional.nullable.str,
-		},
-
-		swPrivateKey: {
-			validator: $.optional.nullable.str,
-		},
-
-		tosUrl: {
-			validator: $.optional.nullable.str,
-		},
-
-		repositoryUrl: {
-			validator: $.optional.str,
-		},
-
-		feedbackUrl: {
-			validator: $.optional.str,
-		},
-
-		useObjectStorage: {
-			validator: $.optional.bool,
-		},
-
-		objectStorageBaseUrl: {
-			validator: $.optional.nullable.str,
-		},
-
-		objectStorageBucket: {
-			validator: $.optional.nullable.str,
-		},
-
-		objectStoragePrefix: {
-			validator: $.optional.nullable.str,
-		},
-
-		objectStorageEndpoint: {
-			validator: $.optional.nullable.str,
-		},
-
-		objectStorageRegion: {
-			validator: $.optional.nullable.str,
-		},
-
-		objectStoragePort: {
-			validator: $.optional.nullable.num,
-		},
-
-		objectStorageAccessKey: {
-			validator: $.optional.nullable.str,
-		},
-
-		objectStorageSecretKey: {
-			validator: $.optional.nullable.str,
-		},
-
-		objectStorageUseSSL: {
-			validator: $.optional.bool,
-		},
-
-		objectStorageUseProxy: {
-			validator: $.optional.bool,
-		},
-
-		objectStorageSetPublicRead: {
-			validator: $.optional.bool,
-		},
-
-		objectStorageS3ForcePathStyle: {
-			validator: $.optional.bool,
-		},
 	},
+	required: [],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const set = {} as Partial<Meta>;
 
 	if (typeof ps.disableRegistration === 'boolean') {

packages/backend/src/server/api/endpoints/admin/vacuum.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../define';
 import { getConnection } from 'typeorm';
 import { insertModerationLog } from '@/services/insert-moderation-log';
@@ -8,19 +7,19 @@ export const meta = {
 
 	requireCredential: true,
 	requireModerator: true,
+} as const;
 
-	params: {
+const paramDef = {
-		full: {
+	type: 'object',
-			validator: $.bool,
+	properties: {
-		},
+		full: { type: 'boolean' },
-		analyze: {
+		analyze: { type: 'boolean' },
-			validator: $.bool,
-		},
 	},
+	required: ['full', 'analyze'],
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const params: string[] = [];
 
 	if (ps.full) {

packages/backend/src/server/api/endpoints/announcements.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../define';
 import { Announcements, AnnouncementReads } from '@/models/index';
 import { makePaginationQuery } from '../common/make-pagination-query';
@@ -9,26 +7,6 @@ export const meta = {
 
 	requireCredential: false,
 
-	params: {
-		limit: {
-			validator: $.optional.num.range(1, 100),
-			default: 10,
-		},
-
-		withUnreads: {
-			validator: $.optional.boolean,
-			default: false,
-		},
-
-		sinceId: {
-			validator: $.optional.type(ID),
-		},
-
-		untilId: {
-			validator: $.optional.type(ID),
-		},
-	},
-
 	res: {
 		type: 'array',
 		optional: false, nullable: false,
@@ -73,11 +51,22 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		withUnreads: { type: 'boolean', default: false },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+	},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	const query = makePaginationQuery(Announcements.createQueryBuilder('announcement'), ps.sinceId, ps.untilId);
 
-	const announcements = await query.take(ps.limit!).getMany();
+	const announcements = await query.take(ps.limit).getMany();
 
 	if (user) {
 		const reads = (await AnnouncementReads.find({

packages/backend/src/server/api/endpoints/antennas/create.ts

@@ -1,8 +1,6 @@
-import $ from 'cafy';
 import define from '../../define';
 import { genId } from '@/misc/gen-id';
 import { Antennas, UserLists, UserGroupJoinings } from '@/models/index';
-import { ID } from '@/misc/cafy-id';
 import { ApiError } from '../../error';
 import { publishInternalEvent } from '@/services/stream';
 
@@ -13,52 +11,6 @@ export const meta = {
 
 	kind: 'write:account',
 
-	params: {
-		name: {
-			validator: $.str.range(1, 100),
-		},
-
-		src: {
-			validator: $.str.or(['home', 'all', 'users', 'list', 'group']),
-		},
-
-		userListId: {
-			validator: $.nullable.optional.type(ID),
-		},
-
-		userGroupId: {
-			validator: $.nullable.optional.type(ID),
-		},
-
-		keywords: {
-			validator: $.arr($.arr($.str)),
-		},
-
-		excludeKeywords: {
-			validator: $.arr($.arr($.str)),
-		},
-
-		users: {
-			validator: $.arr($.str),
-		},
-
-		caseSensitive: {
-			validator: $.bool,
-		},
-
-		withReplies: {
-			validator: $.bool,
-		},
-
-		withFile: {
-			validator: $.bool,
-		},
-
-		notify: {
-			validator: $.bool,
-		},
-	},
-
 	errors: {
 		noSuchUserList: {
 			message: 'No such user list.',
@@ -80,8 +32,36 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		name: { type: 'string', minLength: 1, maxLength: 100 },
+		src: { type: 'string', enum: ['home', 'all', 'users', 'list', 'group'] },
+		userListId: { type: 'string', format: 'misskey:id', nullable: true },
+		userGroupId: { type: 'string', format: 'misskey:id', nullable: true },
+		keywords: { type: 'array', items: {
+			type: 'array', items: {
+				type: 'string',
+			},
+		} },
+		excludeKeywords: { type: 'array', items: {
+			type: 'array', items: {
+				type: 'string',
+			},
+		} },
+		users: { type: 'array', items: {
+			type: 'string',
+		} },
+		caseSensitive: { type: 'boolean' },
+		withReplies: { type: 'boolean' },
+		withFile: { type: 'boolean' },
+		notify: { type: 'boolean' },
+	},
+	required: ['name', 'src', 'keywords', 'excludeKeywords', 'users', 'caseSensitive', 'withReplies', 'withFile', 'notify'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	let userList;
 	let userGroupJoining;
 

packages/backend/src/server/api/endpoints/antennas/delete.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { ApiError } from '../../error';
 import { Antennas } from '@/models/index';
@@ -12,12 +10,6 @@ export const meta = {
 
 	kind: 'write:account',
 
-	params: {
-		antennaId: {
-			validator: $.type(ID),
-		},
-	},
-
 	errors: {
 		noSuchAntenna: {
 			message: 'No such antenna.',
@@ -27,8 +19,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		antennaId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['antennaId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	const antenna = await Antennas.findOne({
 		id: ps.antennaId,
 		userId: user.id,

packages/backend/src/server/api/endpoints/antennas/list.ts

@@ -19,8 +19,14 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const antennas = await Antennas.find({
 		userId: me.id,
 	});

packages/backend/src/server/api/endpoints/antennas/notes.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import readNote from '@/services/note/read';
 import { Antennas, Notes, AntennaNotes } from '@/models/index';
@@ -16,33 +14,6 @@ export const meta = {
 
 	kind: 'read:account',
 
-	params: {
-		antennaId: {
-			validator: $.type(ID),
-		},
-
-		limit: {
-			validator: $.optional.num.range(1, 100),
-			default: 10,
-		},
-
-		sinceId: {
-			validator: $.optional.type(ID),
-		},
-
-		untilId: {
-			validator: $.optional.type(ID),
-		},
-
-		sinceDate: {
-			validator: $.optional.num,
-		},
-
-		untilDate: {
-			validator: $.optional.num,
-		},
-	},
-
 	errors: {
 		noSuchAntenna: {
 			message: 'No such antenna.',
@@ -62,8 +33,21 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		antennaId: { type: 'string', format: 'misskey:id' },
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+		sinceDate: { type: 'integer' },
+		untilDate: { type: 'integer' },
+	},
+	required: ['antennaId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	const antenna = await Antennas.findOne({
 		id: ps.antennaId,
 		userId: user.id,
@@ -92,7 +76,7 @@ export default define(meta, async (ps, user) => {
 	generateBlockedUserQuery(query, user);
 
 	const notes = await query
-		.take(ps.limit!)
+		.take(ps.limit)
 		.getMany();
 
 	if (notes.length > 0) {

packages/backend/src/server/api/endpoints/antennas/show.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { ApiError } from '../../error';
 import { Antennas } from '@/models/index';
@@ -11,12 +9,6 @@ export const meta = {
 
 	kind: 'read:account',
 
-	params: {
-		antennaId: {
-			validator: $.type(ID),
-		},
-	},
-
 	errors: {
 		noSuchAntenna: {
 			message: 'No such antenna.',
@@ -32,8 +24,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		antennaId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['antennaId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	// Fetch the antenna
 	const antenna = await Antennas.findOne({
 		id: ps.antennaId,

packages/backend/src/server/api/endpoints/antennas/update.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { ApiError } from '../../error';
 import { Antennas, UserLists, UserGroupJoinings } from '@/models/index';
@@ -12,56 +10,6 @@ export const meta = {
 
 	kind: 'write:account',
 
-	params: {
-		antennaId: {
-			validator: $.type(ID),
-		},
-
-		name: {
-			validator: $.str.range(1, 100),
-		},
-
-		src: {
-			validator: $.str.or(['home', 'all', 'users', 'list', 'group']),
-		},
-
-		userListId: {
-			validator: $.nullable.optional.type(ID),
-		},
-
-		userGroupId: {
-			validator: $.nullable.optional.type(ID),
-		},
-
-		keywords: {
-			validator: $.arr($.arr($.str)),
-		},
-
-		excludeKeywords: {
-			validator: $.arr($.arr($.str)),
-		},
-
-		users: {
-			validator: $.arr($.str),
-		},
-
-		caseSensitive: {
-			validator: $.bool,
-		},
-
-		withReplies: {
-			validator: $.bool,
-		},
-
-		withFile: {
-			validator: $.bool,
-		},
-
-		notify: {
-			validator: $.bool,
-		},
-	},
-
 	errors: {
 		noSuchAntenna: {
 			message: 'No such antenna.',
@@ -89,8 +37,37 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		antennaId: { type: 'string', format: 'misskey:id' },
+		name: { type: 'string', minLength: 1, maxLength: 100 },
+		src: { type: 'string', enum: ['home', 'all', 'users', 'list', 'group'] },
+		userListId: { type: 'string', format: 'misskey:id', nullable: true },
+		userGroupId: { type: 'string', format: 'misskey:id', nullable: true },
+		keywords: { type: 'array', items: {
+			type: 'array', items: {
+				type: 'string',
+			},
+		} },
+		excludeKeywords: { type: 'array', items: {
+			type: 'array', items: {
+				type: 'string',
+			},
+		} },
+		users: { type: 'array', items: {
+			type: 'string',
+		} },
+		caseSensitive: { type: 'boolean' },
+		withReplies: { type: 'boolean' },
+		withFile: { type: 'boolean' },
+		notify: { type: 'boolean' },
+	},
+	required: ['antennaId', 'name', 'src', 'keywords', 'excludeKeywords', 'users', 'caseSensitive', 'withReplies', 'withFile', 'notify'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	// Fetch the antenna
 	const antenna = await Antennas.findOne({
 		id: ps.antennaId,

packages/backend/src/server/api/endpoints/ap/get.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../define';
 import Resolver from '@/remote/activitypub/resolver';
 import { ApiError } from '../../error';
@@ -14,12 +13,6 @@ export const meta = {
 		max: 30,
 	},
 
-	params: {
-		uri: {
-			validator: $.str,
-		},
-	},
-
 	errors: {
 	},
 
@@ -29,8 +22,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		uri: { type: 'string' },
+	},
+	required: ['uri'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const resolver = new Resolver();
 	const object = await resolver.resolve(ps.uri);
 	return object;

packages/backend/src/server/api/endpoints/ap/show.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../define';
 import config from '@/config/index';
 import { createPerson } from '@/remote/activitypub/models/person';
@@ -24,12 +23,6 @@ export const meta = {
 		max: 30,
 	},
 
-	params: {
-		uri: {
-			validator: $.str,
-		},
-	},
-
 	errors: {
 		noSuchObject: {
 			message: 'No such object.',
@@ -75,8 +68,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		uri: { type: 'string' },
+	},
+	required: ['uri'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	const object = await fetchAny(ps.uri);
 	if (object) {
 		return object;

packages/backend/src/server/api/endpoints/app/create.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../define';
 import { Apps } from '@/models/index';
 import { genId } from '@/misc/gen-id';
@@ -10,26 +9,6 @@ export const meta = {
 
 	requireCredential: false,
 
-	params: {
-		name: {
-			validator: $.str,
-		},
-
-		description: {
-			validator: $.str,
-		},
-
-		permission: {
-			validator: $.arr($.str).unique(),
-		},
-
-		// TODO: Check it is valid url
-		callbackUrl: {
-			validator: $.optional.nullable.str,
-			default: null,
-		},
-	},
-
 	res: {
 		type: 'object',
 		optional: false, nullable: false,
@@ -37,8 +16,21 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		name: { type: 'string' },
+		description: { type: 'string' },
+		permission: { type: 'array', uniqueItems: true, items: {
+			type: 'string',
+		} },
+		callbackUrl: { type: 'string', nullable: true },
+	},
+	required: ['name', 'description', 'permission'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	// Generate secret
 	const secret = secureRndstr(32, true);
 

packages/backend/src/server/api/endpoints/app/show.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { ApiError } from '../../error';
 import { Apps } from '@/models/index';
@@ -7,12 +5,6 @@ import { Apps } from '@/models/index';
 export const meta = {
 	tags: ['app'],
 
-	params: {
-		appId: {
-			validator: $.type(ID),
-		},
-	},
-
 	errors: {
 		noSuchApp: {
 			message: 'No such app.',
@@ -28,8 +20,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		appId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['appId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user, token) => {
+export default define(meta, paramDef, async (ps, user, token) => {
 	const isSecure = user != null && token == null;
 
 	// Lookup app

packages/backend/src/server/api/endpoints/auth/accept.ts

@@ -1,5 +1,4 @@
 import * as crypto from 'crypto';
-import $ from 'cafy';
 import define from '../../define';
 import { ApiError } from '../../error';
 import { AuthSessions, AccessTokens, Apps } from '@/models/index';
@@ -13,12 +12,6 @@ export const meta = {
 
 	secure: true,
 
-	params: {
-		token: {
-			validator: $.str,
-		},
-	},
-
 	errors: {
 		noSuchSession: {
 			message: 'No such session.',
@@ -28,8 +21,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		token: { type: 'string' },
+	},
+	required: ['token'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	// Fetch token
 	const session = await AuthSessions
 		.findOne({ token: ps.token });

packages/backend/src/server/api/endpoints/auth/session/generate.ts

@@ -1,5 +1,4 @@
 import { v4 as uuid } from 'uuid';
-import $ from 'cafy';
 import config from '@/config/index';
 import define from '../../../define';
 import { ApiError } from '../../../error';
@@ -11,12 +10,6 @@ export const meta = {
 
 	requireCredential: false,
 
-	params: {
-		appSecret: {
-			validator: $.str,
-		},
-	},
-
 	res: {
 		type: 'object',
 		optional: false, nullable: false,
@@ -42,8 +35,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		appSecret: { type: 'string' },
+	},
+	required: ['appSecret'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	// Lookup app
 	const app = await Apps.findOne({
 		secret: ps.appSecret,

packages/backend/src/server/api/endpoints/auth/session/show.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { ApiError } from '../../../error';
 import { AuthSessions } from '@/models/index';
@@ -8,12 +7,6 @@ export const meta = {
 
 	requireCredential: false,
 
-	params: {
-		token: {
-			validator: $.str,
-		},
-	},
-
 	errors: {
 		noSuchSession: {
 			message: 'No such session.',
@@ -44,8 +37,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		token: { type: 'string' },
+	},
+	required: ['token'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	// Lookup session
 	const session = await AuthSessions.findOne({
 		token: ps.token,

packages/backend/src/server/api/endpoints/auth/session/userkey.ts

@@ -1,4 +1,3 @@
-import $ from 'cafy';
 import define from '../../../define';
 import { ApiError } from '../../../error';
 import { Apps, AuthSessions, AccessTokens, Users } from '@/models/index';
@@ -8,16 +7,6 @@ export const meta = {
 
 	requireCredential: false,
 
-	params: {
-		appSecret: {
-			validator: $.str,
-		},
-
-		token: {
-			validator: $.str,
-		},
-	},
-
 	res: {
 		type: 'object',
 		optional: false, nullable: false,
@@ -56,8 +45,17 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		appSecret: { type: 'string' },
+		token: { type: 'string' },
+	},
+	required: ['appSecret', 'token'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
 	// Lookup app
 	const app = await Apps.findOne({
 		secret: ps.appSecret,

packages/backend/src/server/api/endpoints/blocking/create.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import ms from 'ms';
 import create from '@/services/blocking/create';
 import define from '../../define';
@@ -19,12 +17,6 @@ export const meta = {
 
 	kind: 'write:blocks',
 
-	params: {
-		userId: {
-			validator: $.type(ID),
-		},
-	},
-
 	errors: {
 		noSuchUser: {
 			message: 'No such user.',
@@ -52,8 +44,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		userId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['userId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	const blocker = await Users.findOneOrFail(user.id);
 
 	// 自分自身

packages/backend/src/server/api/endpoints/blocking/delete.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import ms from 'ms';
 import deleteBlocking from '@/services/blocking/delete';
 import define from '../../define';
@@ -19,12 +17,6 @@ export const meta = {
 
 	kind: 'write:blocks',
 
-	params: {
-		userId: {
-			validator: $.type(ID),
-		},
-	},
-
 	errors: {
 		noSuchUser: {
 			message: 'No such user.',
@@ -52,8 +44,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		userId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['userId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	const blocker = await Users.findOneOrFail(user.id);
 
 	// Check if the blockee is yourself

packages/backend/src/server/api/endpoints/blocking/list.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { Blockings } from '@/models/index';
 import { makePaginationQuery } from '../../common/make-pagination-query';
@@ -11,21 +9,6 @@ export const meta = {
 
 	kind: 'read:blocks',
 
-	params: {
-		limit: {
-			validator: $.optional.num.range(1, 100),
-			default: 30,
-		},
-
-		sinceId: {
-			validator: $.optional.type(ID),
-		},
-
-		untilId: {
-			validator: $.optional.type(ID),
-		},
-	},
-
 	res: {
 		type: 'array',
 		optional: false, nullable: false,
@@ -37,13 +20,23 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 30 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+	},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const query = makePaginationQuery(Blockings.createQueryBuilder('blocking'), ps.sinceId, ps.untilId)
 		.andWhere(`blocking.blockerId = :meId`, { meId: me.id });
 
 	const blockings = await query
-		.take(ps.limit!)
+		.take(ps.limit)
 		.getMany();
 
 	return await Blockings.packMany(blockings, me);

packages/backend/src/server/api/endpoints/channels/create.ts

@@ -1,10 +1,8 @@
-import $ from 'cafy';
 import define from '../../define';
 import { ApiError } from '../../error';
 import { Channels, DriveFiles } from '@/models/index';
 import { Channel } from '@/models/entities/channel';
 import { genId } from '@/misc/gen-id';
-import { ID } from '@/misc/cafy-id';
 
 export const meta = {
 	tags: ['channels'],
@@ -13,20 +11,6 @@ export const meta = {
 
 	kind: 'write:channels',
 
-	params: {
-		name: {
-			validator: $.str.range(1, 128),
-		},
-
-		description: {
-			validator: $.nullable.optional.str.range(1, 2048),
-		},
-
-		bannerId: {
-			validator: $.nullable.optional.type(ID),
-		},
-	},
-
 	res: {
 		type: 'object',
 		optional: false, nullable: false,
@@ -42,8 +26,18 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		name: { type: 'string', minLength: 1, maxLength: 128 },
+		description: { type: 'string', nullable: true, minLength: 1, maxLength: 2048 },
+		bannerId: { type: 'string', format: 'misskey:id', nullable: true },
+	},
+	required: ['name'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	let banner = null;
 	if (ps.bannerId != null) {
 		banner = await DriveFiles.findOne({

packages/backend/src/server/api/endpoints/channels/featured.ts

@@ -17,8 +17,14 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const query = Channels.createQueryBuilder('channel')
 		.where('channel.lastNotedAt IS NOT NULL')
 		.orderBy('channel.lastNotedAt', 'DESC');

packages/backend/src/server/api/endpoints/channels/follow.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { ApiError } from '../../error';
 import { Channels, ChannelFollowings } from '@/models/index';
@@ -13,12 +11,6 @@ export const meta = {
 
 	kind: 'write:channels',
 
-	params: {
-		channelId: {
-			validator: $.type(ID),
-		},
-	},
-
 	errors: {
 		noSuchChannel: {
 			message: 'No such channel.',
@@ -28,8 +20,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		channelId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['channelId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	const channel = await Channels.findOne({
 		id: ps.channelId,
 	});

packages/backend/src/server/api/endpoints/channels/followed.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { Channels, ChannelFollowings } from '@/models/index';
 import { makePaginationQuery } from '../../common/make-pagination-query';
@@ -11,21 +9,6 @@ export const meta = {
 
 	kind: 'read:channels',
 
-	params: {
-		sinceId: {
-			validator: $.optional.type(ID),
-		},
-
-		untilId: {
-			validator: $.optional.type(ID),
-		},
-
-		limit: {
-			validator: $.optional.num.range(1, 100),
-			default: 5,
-		},
-	},
-
 	res: {
 		type: 'array',
 		optional: false, nullable: false,
@@ -37,13 +20,23 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 5 },
+	},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const query = makePaginationQuery(ChannelFollowings.createQueryBuilder(), ps.sinceId, ps.untilId)
 		.andWhere({ followerId: me.id });
 
 	const followings = await query
-		.take(ps.limit!)
+		.take(ps.limit)
 		.getMany();
 
 	return await Promise.all(followings.map(x => Channels.pack(x.followeeId, me)));

packages/backend/src/server/api/endpoints/channels/owned.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { Channels } from '@/models/index';
 import { makePaginationQuery } from '../../common/make-pagination-query';
@@ -11,21 +9,6 @@ export const meta = {
 
 	kind: 'read:channels',
 
-	params: {
-		sinceId: {
-			validator: $.optional.type(ID),
-		},
-
-		untilId: {
-			validator: $.optional.type(ID),
-		},
-
-		limit: {
-			validator: $.optional.num.range(1, 100),
-			default: 5,
-		},
-	},
-
 	res: {
 		type: 'array',
 		optional: false, nullable: false,
@@ -37,13 +20,23 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 5 },
+	},
+	required: [],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const query = makePaginationQuery(Channels.createQueryBuilder(), ps.sinceId, ps.untilId)
 		.andWhere({ userId: me.id });
 
 	const channels = await query
-		.take(ps.limit!)
+		.take(ps.limit)
 		.getMany();
 
 	return await Promise.all(channels.map(x => Channels.pack(x, me)));

packages/backend/src/server/api/endpoints/channels/show.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { ApiError } from '../../error';
 import { Channels } from '@/models/index';
@@ -9,12 +7,6 @@ export const meta = {
 
 	requireCredential: false,
 
-	params: {
-		channelId: {
-			validator: $.type(ID),
-		},
-	},
-
 	res: {
 		type: 'object',
 		optional: false, nullable: false,
@@ -30,8 +22,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		channelId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['channelId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const channel = await Channels.findOne({
 		id: ps.channelId,
 	});

packages/backend/src/server/api/endpoints/channels/timeline.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { ApiError } from '../../error';
 import { Notes, Channels } from '@/models/index';
@@ -11,33 +9,6 @@ export const meta = {
 
 	requireCredential: false,
 
-	params: {
-		channelId: {
-			validator: $.type(ID),
-		},
-
-		limit: {
-			validator: $.optional.num.range(1, 100),
-			default: 10,
-		},
-
-		sinceId: {
-			validator: $.optional.type(ID),
-		},
-
-		untilId: {
-			validator: $.optional.type(ID),
-		},
-
-		sinceDate: {
-			validator: $.optional.num,
-		},
-
-		untilDate: {
-			validator: $.optional.num,
-		},
-	},
-
 	res: {
 		type: 'array',
 		optional: false, nullable: false,
@@ -57,8 +28,21 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		channelId: { type: 'string', format: 'misskey:id' },
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+		sinceDate: { type: 'integer' },
+		untilDate: { type: 'integer' },
+	},
+	required: ['channelId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	const channel = await Channels.findOne({
 		id: ps.channelId,
 	});
@@ -78,7 +62,7 @@ export default define(meta, async (ps, user) => {
 		.leftJoinAndSelect('note.channel', 'channel');
 	//#endregion
 
-	const timeline = await query.take(ps.limit!).getMany();
+	const timeline = await query.take(ps.limit).getMany();
 
 	if (user) activeUsersChart.read(user);
 

packages/backend/src/server/api/endpoints/channels/unfollow.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { ApiError } from '../../error';
 import { Channels, ChannelFollowings } from '@/models/index';
@@ -12,12 +10,6 @@ export const meta = {
 
 	kind: 'write:channels',
 
-	params: {
-		channelId: {
-			validator: $.type(ID),
-		},
-	},
-
 	errors: {
 		noSuchChannel: {
 			message: 'No such channel.',
@@ -27,8 +19,16 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		channelId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['channelId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, user) => {
+export default define(meta, paramDef, async (ps, user) => {
 	const channel = await Channels.findOne({
 		id: ps.channelId,
 	});

packages/backend/src/server/api/endpoints/channels/update.ts

@@ -1,5 +1,3 @@
-import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
 import define from '../../define';
 import { ApiError } from '../../error';
 import { Channels, DriveFiles } from '@/models/index';
@@ -11,24 +9,6 @@ export const meta = {
 
 	kind: 'write:channels',
 
-	params: {
-		channelId: {
-			validator: $.type(ID),
-		},
-
-		name: {
-			validator: $.optional.str.range(1, 128),
-		},
-
-		description: {
-			validator: $.nullable.optional.str.range(1, 2048),
-		},
-
-		bannerId: {
-			validator: $.nullable.optional.type(ID),
-		},
-	},
-
 	res: {
 		type: 'object',
 		optional: false, nullable: false,
@@ -56,8 +36,19 @@ export const meta = {
 	},
 } as const;
 
+const paramDef = {
+	type: 'object',
+	properties: {
+		channelId: { type: 'string', format: 'misskey:id' },
+		name: { type: 'string', minLength: 1, maxLength: 128 },
+		description: { type: 'string', nullable: true, minLength: 1, maxLength: 2048 },
+		bannerId: { type: 'string', format: 'misskey:id', nullable: true },
+	},
+	required: ['channelId'],
+} as const;
+
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps, me) => {
+export default define(meta, paramDef, async (ps, me) => {
 	const channel = await Channels.findOne({
 		id: ps.channelId,
 	});

packages/backend/src/server/api/endpoints/charts/active-users.ts

@@ -1,31 +1,24 @@
-import $ from 'cafy';
 import define from '../../define';
-import { convertLog } from '@/services/chart/core';
+import { getJsonSchema } from '@/services/chart/core';
 import { activeUsersChart } from '@/services/chart/index';
 
 export const meta = {
 	tags: ['charts', 'users'],
 
-	params: {
+	res: getJsonSchema(activeUsersChart.schema),
-		span: {
+} as const;
-			validator: $.str.or(['day', 'hour']),
-		},
 
-		limit: {
+const paramDef = {
-			validator: $.optional.num.range(1, 500),
+	type: 'object',
-			default: 30,
+	properties: {
-		},
+		span: { type: 'string', enum: ['day', 'hour'] },
-
+		limit: { type: 'integer', minimum: 1, maximum: 500, default: 30 },
-		offset: {
+		offset: { type: 'integer', nullable: true, default: null },
-			validator: $.optional.nullable.num,
-			default: null,
-		},
 	},
-
+	required: ['span'],
-	// TODO: response definition
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
-	return await activeUsersChart.getChart(ps.span as any, ps.limit!, ps.offset ? new Date(ps.offset) : null);
+	return await activeUsersChart.getChart(ps.span, ps.limit, ps.offset ? new Date(ps.offset) : null);
 });

packages/backend/src/server/api/endpoints/charts/ap-request.ts

@@ -1,31 +1,24 @@
-import $ from 'cafy';
 import define from '../../define';
-import { convertLog } from '@/services/chart/core';
+import { getJsonSchema } from '@/services/chart/core';
 import { apRequestChart } from '@/services/chart/index';
 
 export const meta = {
 	tags: ['charts'],
 
-	params: {
+	res: getJsonSchema(apRequestChart.schema),
-		span: {
+} as const;
-			validator: $.str.or(['day', 'hour']),
-		},
 
-		limit: {
+const paramDef = {
-			validator: $.optional.num.range(1, 500),
+	type: 'object',
-			default: 30,
+	properties: {
-		},
+		span: { type: 'string', enum: ['day', 'hour'] },
-
+		limit: { type: 'integer', minimum: 1, maximum: 500, default: 30 },
-		offset: {
+		offset: { type: 'integer', nullable: true, default: null },
-			validator: $.optional.nullable.num,
-			default: null,
-		},
 	},
-
+	required: ['span'],
-	// TODO: response definition
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
-	return await apRequestChart.getChart(ps.span as any, ps.limit!, ps.offset ? new Date(ps.offset) : null);
+	return await apRequestChart.getChart(ps.span, ps.limit, ps.offset ? new Date(ps.offset) : null);
 });

packages/backend/src/server/api/endpoints/charts/drive.ts

@@ -1,31 +1,24 @@
-import $ from 'cafy';
 import define from '../../define';
-import { convertLog } from '@/services/chart/core';
+import { getJsonSchema } from '@/services/chart/core';
 import { driveChart } from '@/services/chart/index';
 
 export const meta = {
 	tags: ['charts', 'drive'],
 
-	params: {
+	res: getJsonSchema(driveChart.schema),
-		span: {
+} as const;
-			validator: $.str.or(['day', 'hour']),
-		},
 
-		limit: {
+const paramDef = {
-			validator: $.optional.num.range(1, 500),
+	type: 'object',
-			default: 30,
+	properties: {
-		},
+		span: { type: 'string', enum: ['day', 'hour'] },
-
+		limit: { type: 'integer', minimum: 1, maximum: 500, default: 30 },
-		offset: {
+		offset: { type: 'integer', nullable: true, default: null },
-			validator: $.optional.nullable.num,
-			default: null,
-		},
 	},
-
+	required: ['span'],
-	// TODO: response definition
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
-	return await driveChart.getChart(ps.span as any, ps.limit!, ps.offset ? new Date(ps.offset) : null);
+	return await driveChart.getChart(ps.span, ps.limit, ps.offset ? new Date(ps.offset) : null);
 });

packages/backend/src/server/api/endpoints/charts/federation.ts

@@ -1,31 +1,24 @@
-import $ from 'cafy';
 import define from '../../define';
-import { convertLog } from '@/services/chart/core';
+import { getJsonSchema } from '@/services/chart/core';
 import { federationChart } from '@/services/chart/index';
 
 export const meta = {
 	tags: ['charts'],
 
-	params: {
+	res: getJsonSchema(federationChart.schema),
-		span: {
+} as const;
-			validator: $.str.or(['day', 'hour']),
-		},
 
-		limit: {
+const paramDef = {
-			validator: $.optional.num.range(1, 500),
+	type: 'object',
-			default: 30,
+	properties: {
-		},
+		span: { type: 'string', enum: ['day', 'hour'] },
-
+		limit: { type: 'integer', minimum: 1, maximum: 500, default: 30 },
-		offset: {
+		offset: { type: 'integer', nullable: true, default: null },
-			validator: $.optional.nullable.num,
-			default: null,
-		},
 	},
-
+	required: ['span'],
-	// TODO: response definition
 } as const;
 
 // eslint-disable-next-line import/no-default-export
-export default define(meta, async (ps) => {
+export default define(meta, paramDef, async (ps) => {
-	return await federationChart.getChart(ps.span as any, ps.limit!, ps.offset ? new Date(ps.offset) : null);
+	return await federationChart.getChart(ps.span, ps.limit, ps.offset ? new Date(ps.offset) : null);
 });