Add GetUpdates method

src/requests/get_updates.rs

@@ -0,0 +1,88 @@
+use crate::{
+    network,
+    requests::{Request, RequestContext, RequestFuture, ResponseResult},
+    types::Update,
+};
+
+#[derive(Debug, Clone, Serialize)]
+pub struct GetUpdates<'a> {
+    #[serde(skip_serializing)]
+    ctx: RequestContext<'a>,
+
+    pub offset: Option<i32>,
+    pub limit: Option<u8>,
+    pub timeout: Option<u32>,
+    pub allowed_updates: Option<Vec<AllowedUpdate>>,
+}
+
+#[derive(Debug, Serialize, Eq, Hash, PartialEq, Clone, Copy)]
+#[serde(rename_all = "snake_case")]
+pub enum AllowedUpdate {
+    Message,
+    EditedMessage,
+    ChannelPost,
+    EditedChannelPost,
+    InlineQuery,
+    ChosenInlineResult,
+    CallbackQuery,
+}
+
+impl<'a> Request<'a> for GetUpdates<'a> {
+    type ReturnValue = Vec<Update>;
+
+    fn send(self) -> RequestFuture<'a, ResponseResult<Self::ReturnValue>> {
+        Box::pin(async move {
+            network::request_json(
+                &self.ctx.client,
+                &self.ctx.token,
+                "getUpdates",
+                &self,
+            )
+            .await
+        })
+    }
+}
+
+impl<'a> GetUpdates<'a> {
+    pub(crate) fn new(ctx: RequestContext<'a>) -> Self {
+        Self {
+            ctx,
+            offset: None,
+            limit: None,
+            timeout: None,
+            allowed_updates: None,
+        }
+    }
+
+    pub fn offset<T>(mut self, offset: T) -> Self
+    where
+        T: Into<i32>,
+    {
+        self.offset = Some(offset.into());
+        self
+    }
+
+    pub fn limit<T>(mut self, limit: T) -> Self
+    where
+        T: Into<u8>,
+    {
+        self.limit = Some(limit.into());
+        self
+    }
+
+    pub fn timeout<T>(mut self, timeout: T) -> Self
+    where
+        T: Into<u32>,
+    {
+        self.timeout = Some(timeout.into());
+        self
+    }
+
+    pub fn allowed_updates<T>(mut self, allowed_updates: T) -> Self
+    where
+        T: Into<Vec<AllowedUpdate>>,
+    {
+        self.allowed_updates = Some(allowed_updates.into());
+        self
+    }
+}

src/requests/mod.rs

@@ -70,6 +70,7 @@ pub mod forward_message;
 pub mod get_chat;
 pub mod get_file;
 pub mod get_me;
+pub mod get_updates;
 pub mod get_user_profile_photos;
 pub mod kick_chat_member;
 pub mod restrict_chat_member;