From 368c3ee08fc3896358d3bd2bfc8cc67f2925c6ef Mon Sep 17 00:00:00 2001
From: Lennart Melzer <l@melzer.it>
Date: Mon, 11 Sep 2023 14:12:03 +0200
Subject: [PATCH] Add IntoResponse impl to customize-extractor-error example
 (#2191)

---
 .../src/derive_from_request.rs                        | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/examples/customize-extractor-error/src/derive_from_request.rs b/examples/customize-extractor-error/src/derive_from_request.rs
index 7295823e..84fd9bbf 100644
--- a/examples/customize-extractor-error/src/derive_from_request.rs
+++ b/examples/customize-extractor-error/src/derive_from_request.rs
@@ -15,10 +15,11 @@ use axum::{
     extract::rejection::JsonRejection, extract::FromRequest, http::StatusCode,
     response::IntoResponse,
 };
+use serde::Serialize;
 use serde_json::{json, Value};
 
 pub async fn handler(Json(value): Json<Value>) -> impl IntoResponse {
-    Json(dbg!(value));
+    Json(dbg!(value))
 }
 
 // create an extractor that internally uses `axum::Json` but has a custom rejection
@@ -26,6 +27,14 @@ pub async fn handler(Json(value): Json<Value>) -> impl IntoResponse {
 #[from_request(via(axum::Json), rejection(ApiError))]
 pub struct Json<T>(T);
 
+// We implement `IntoResponse` for our extractor so it can be used as a response
+impl<T: Serialize> IntoResponse for Json<T> {
+    fn into_response(self) -> axum::response::Response {
+        let Self(value) = self;
+        axum::Json(value).into_response()
+    }
+}
+
 // We create our own rejection type
 #[derive(Debug)]
 pub struct ApiError {