tower-http-client 0.2.0

Extra Tower middlewares and utilities for HTTP clients.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69

# tower-http-client

[![tests](https://github.com/alekseysidorov/tower-reqwest/actions/workflows/ci.yml/badge.svg)](https://github.com/alekseysidorov/tower-reqwest/actions/workflows/ci.yml)
[![crates.io](https://img.shields.io/crates/v/tower-http-client.svg)](https://crates.io/crates/tower-http-client)
[![Documentation](https://docs.rs/tower-http-client/badge.svg)](https://docs.rs/tower-http-client)
[![MIT/Apache-2 licensed](https://img.shields.io/crates/l/tower-http-client)](./LICENSE)

<!-- ANCHOR: description -->

Extra Tower middlewares and utilities for HTTP clients.

## Warning

This crate is currently in early stage of development and is not ready for
production use.

## Example

```rust
use http::{header::USER_AGENT, HeaderValue};
use http_body_util::BodyExt;
use serde_json::Value;
use tower::{ServiceBuilder, ServiceExt};
use tower_http::ServiceBuilderExt;
use tower_http_client::util::HttpClientExt;
use tower_reqwest::HttpClientLayer;

/// Implementation agnostic HTTP client.
type HttpClient = tower::util::BoxCloneService<
    http::Request<reqwest::Body>,
    http::Response<reqwest::Body>,
    anyhow::Error,
>;

/// Creates HTTP client with Tower layers on top of the given client.
fn make_client(client: reqwest::Client) -> HttpClient {
    ServiceBuilder::new()
        // Add some layers.
        .override_request_header(USER_AGENT, HeaderValue::from_static("tower-http-client"))
        // Make client compatible with the `tower-http` layers.
        .layer(HttpClientLayer)
        .service(client)
        .map_err(anyhow::Error::from)
        .boxed_clone()
}

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    // Create a new client
    let client = make_client(reqwest::Client::new());
    // Execute request by using this service.
    let response = client
        .execute(
            http::request::Builder::new()
                .method(http::Method::GET)
                .uri("http://ip.jsontest.com")
                .body(reqwest::Body::default())?,
        )
        .await?;

    let bytes = response.into_body().collect().await?.to_bytes();
    let value: Value = serde_json::from_slice(&bytes)?;
    println!("{value:#?}");

    Ok(())
}
```

<!-- ANCHOR_END: description -->