Hyper 1.0. How to send string?

[ziimakc]

I'm new to rust and can't figure out what is an issue with hyper 1.0 when sending string response, previous version worked fine:

use axum::{handler::Handler, routing::get, Router};
use hyper::StatusCode;

pub fn router2() -> Router {
    Router::new().route("/", get(home))
}

async fn home() -> Result<&'static str, StatusCode> {
    Ok("Hello world!")
}

error:

error[E0277]: the trait bound `fn() -> impl std::future::Future<Output = std::result::Result<&'static str, hyper::StatusCode>> {server::common_routes::home}: axum::handler::Handler<_, _, _>` is not satisfied
   --> apps/api/src/server/common_routes.rs:6:25
    |
6   |         .route("/", get(home))
    |                     --- ^^^^ the trait `axum::handler::Handler<_, _, _>` is not implemented for fn item `fn() -> impl std::future::Future<Output = std::result::Result<&'static str, hyper::StatusCode>> {server::common_routes::home}`
    |                     |
    |                     required by a bound introduced by this call
    |
    = help: the following other types implement trait `axum::handler::Handler<T, S, B>`:
              <axum::handler::Layered<L, H, T, S, B, B2> as axum::handler::Handler<T, S, B2>>
              <axum::routing::MethodRouter<S, B> as axum::handler::Handler<(), S, B>>
note: required by a bound in `axum::routing::get`
   --> /xxx/.cargo/registry/src/index.crates.io-6f17d22bba15001f/axum-0.6.20/src/routing/method_routing.rs:403:1
    |
403 | top_level_handler_fn!(get, GET);
    | ^^^^^^^^^^^^^^^^^^^^^^---^^^^^^
    | |                     |
    | |                     required by a bound in this function
    | required by this bound in `get`
    = note: this error originates in the macro `top_level_handler_fn` (in Nightly builds, run with -Z macro-backtrace for more info)

[davidpdrsn]

axum does not yet support hyper 1.0. I recommend you follow #1325 but otherwise stick with hyper 0.14 for now.

The specific issue most likely is that hyper 1.0 uses http 1.0 but axum expects http 0.2. So the StatusCode you're getting is the wrong version.