A proxy with axum 0.7 and reqwest 0.12 based on http 1? #2309

frederikhors · 2024-06-05T10:00:41Z

frederikhors
Jun 5, 2024

I have the below code:

#[tokio::main]
async fn main() {
  let app = axum::Router::new()
    .route("/", get(handler))
    .route("/custom/*key", get(proxy).post(proxy));

  // ...
}

pub async fn proxy(mut req: Request<Body>) -> Result<Response<Body>, StatusCode> {
  let path_query = req
    .uri()
    .path_and_query()
    .map_or_else(|| req.uri().path(), |v| v.as_str());

  let uri = format!("http://localhost:9000/{}", path_query);

  *req.uri_mut() = Uri::try_from(uri).unwrap();

  let http_client = reqwest::Client::new();

  let res = http_client.execute(req).await.unwrap()

  if res.status().is_server_error() {
    return Err(StatusCode::INTERNAL_SERVER_ERROR);
  }

  Ok(res)
}

But obviously this doesn't work:

error[E0308]: mismatched types
     |
35   |     let res = http_client.execute(req).await.unwrap();
     |                           ------- ^^^ expected `Request`, found `Request<Incoming>`
     |                           |
     |                           arguments to this method are incorrect
     |
     = note: `Request<Incoming>` and `reqwest::Request` have similar names, but are actually distinct types
note: `Request<Incoming>` is defined in crate `http`
    --> C:\Users\Fred\.cargo\registry\src\index.crates.io-6f17d22bba15001f\http-1.1.0\src\request.rs:158:1
     |
158  | pub struct Request<T> {
     | ^^^^^^^^^^^^^^^^^^^^^
note: `reqwest::Request` is defined in crate `reqwest`
    --> C:\Users\Fred\.cargo\registry\src\index.crates.io-6f17d22bba15001f\reqwest-0.12.4\src\async_impl\request.rs:22:1
     |
22   | pub struct Request {
     | ^^^^^^^^^^^^^^^^^^
note: method defined here
    --> C:\Users\Fred\.cargo\registry\src\index.crates.io-6f17d22bba15001f\reqwest-0.12.4\src\async_impl\client.rs:1965:12
     |
1965 |     pub fn execute(
     |            ^^^^^^^

and:

error[E0308]: mismatched types
    |
43  |     Ok(res)
    |     -- ^^^ expected `Response<Incoming>`, found `Response`
    |     |
    |     arguments to this enum variant are incorrect
    |
    = note: `reqwest::Response` and `Response<Incoming>` have similar names, but are actually distinct types
note: `reqwest::Response` is defined in crate `reqwest`
   --> C:\Users\Fred\.cargo\registry\src\index.crates.io-6f17d22bba15001f\reqwest-0.12.4\src\async_impl\response.rs:29:1

I'm using axum 0.7.5 and reqwest 0.12 (both on http 1).

Is it possible to make it work?

Provide feedback

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A proxy with axum 0.7 and reqwest 0.12 based on http 1? #2309

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A proxy with axum 0.7 and reqwest 0.12 based on http 1? #2309

frederikhors Jun 5, 2024

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frederikhors
Jun 5, 2024