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add IntoResponse impl on custom Json extractor example #2191

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merged 3 commits into from
Sep 11, 2023
Merged

add IntoResponse impl on custom Json extractor example #2191

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add IntoResponse impl on custom Json extractor example
lennart Aug 22, 2023
abc4093
Merge branch 'main' into into-response-for-custom-extractor-example
davidpdrsn Sep 11, 2023
02362bf
format
davidpdrsn Sep 11, 2023
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11 changes: 10 additions & 1 deletion examples/customize-extractor-error/src/derive_from_request.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -15,17 +15,26 @@ 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
#[derive(FromRequest)]
#[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 {
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