# rosu-render
Rust wrapper for the [API and websocket](https://ordr.issou.best/docs/) of [`o!rdr`] to render [`osu!`] replays.
## Usage
```rust
use rosu_render::{
model::{RenderSkinOption, Verification},
OrdrClient, OrdrWebsocket,
};
#[tokio::main]
async fn main() {
// In production, use your key as verification or omit verification entirely.
let client = OrdrClient::builder().verification(Verification::DevModeSuccess).build();
let mut websocket = OrdrWebsocket::connect().await.expect("Failed to connect websocket");
// The channel lets us notify the websocket when to disconnect
let (disconnect_tx, mut disconnect_rx) = tokio::sync::oneshot::channel::<()>();
// Handle websocket events in a different task
let websocket_handle = tokio::spawn(async move {
loop {
tokio::select! {
event_res = websocket.next_event() => {
match event_res {
Ok(event) => println!("{event:?}"),
Err(err) => println!("Websocket error: {err:?}"),
}
},
_ = &mut disconnect_rx => {
println!("Received disconnect notification");
websocket.disconnect().await.expect("Failed to disconnect gracefully");
return;
}
}
}
});
// Requesting from the API
let render_list = client
.render_list()
.page_size(2)
.await
.expect("Failed to get render list");
println!("{render_list:#?}");
let skin_list = client
.skin_list()
.page_size(3)
.page(2)
.await
.expect("Failed to get skin list");
println!("{skin_list:#?}");
let server_list_count = client
.server_online_count()
.await
.expect("Failed to get server list count");
println!("{server_list_count:?}");
let replay_file = tokio::fs::read("./assets/2283307549.osr")
.await
.expect("Failed to get replay file");
let skin = RenderSkinOption::default();
let render = client
.render_with_replay_file(&replay_file, "your_name", &skin)
.await
.expect("Failed to commission replay render");
println!("{render:#?}");
// Now the websocket will receive events for your commissioned replay render
tokio::time::sleep(std::time::Duration::from_secs(5)).await;
// Notify the websocket to disconnect
let _ = disconnect_tx.send(());
websocket_handle.await.expect("websocket worker panicked");
println!("Shutting down");
}
```
## Features
### Crypto provider
Using [`rustls`] for TLS requires configuring a crypto provider via crate
features or manually installing a global default. The default is `rustls-ring`.
#### `rustls-ring`
The `rustls-ring` feature will enable the use of [`ring`] as the crypto
provider. This is recommended for platform compatibility.
#### `rustls-aws_lc_rs`
The `rustls-aws_lc_rs` feature will enable the use of [`aws-lc-rs`] as the
crypto provider. This is recommended for performance and on widely used
platforms.
#### Manual installation
If none of the other crypto providers are enabled, a custom one must be
installed by the application using [`CryptoProvider::install_default`].
### TLS
`rosu-render` has features to enable HTTPS connectivity with [`hyper`]. These
features are mutually exclusive. `rustls-webpki-roots` is enabled by default.
#### `native-tls`
The `native-tls` feature uses a HTTPS connector provided by [`hyper-tls`].
#### `rustls-native-roots`
The `rustls-native-roots` feature uses a HTTPS connector provided by [`hyper-rustls`], which uses
[`rustls`] as the TLS backend, and enables its `native-tokio` feature, which uses [`rustls-native-certs`]
for root certificates. This requires configuring a crypto provider.
#### `rustls-platform-verifier`
The `rustls-platform-verifier` feature uses a HTTPS connector provided by [`hyper-rustls`], which uses
[`rustls`] as the TLS backend, and enables its [`rustls-platform-verifier`] feature, which uses
[`rustls-platform-verifier`] for certificate validation. This requires configuring a crypto provider.
#### `rustls-webpki-roots`
The `rustls-webpki-roots` feature uses a HTTPS connector provided by [`hyper-rustls`], which uses
[`rustls`] as the TLS backend, and enables its `webpki-tokio` feature, which uses [`webpki-roots`]
for root certificates. This requires configuring a crypto provider.
This should be preferred over `rustls-native-roots` in Docker containers based on `scratch`.
This is enabled by default.
### Trust-DNS
The `hickory` feature enables [`hyper-hickory`], which replaces the default
`GaiResolver` in [`hyper`]. [`hyper-hickory`] instead provides a fully async
DNS resolver on the application level.
[`o!rdr`]: https://ordr.issou.best/
[`osu!`]: https://osu.ppy.sh/home
[`CryptoProvider::install_default`]: https://docs.rs/rustls/latest/rustls/crypto/struct.CryptoProvider.html#method.install_default
[`aws-lc-rs`]: https://crates.io/crates/aws-lc-rs
[`hyper`]: https://crates.io/crates/hyper
[`hyper-hickory`]: https://crates.io/crates/hyper-hickory
[`hyper-rustls`]: https://crates.io/crates/hyper-rustls
[`hyper-tls`]: https://crates.io/crates/hyper-tls
[`ring`]: https://crates.io/crates/ring
[`rustls`]: https://crates.io/crates/rustls
[`rustls-native-certs`]: https://crates.io/crates/rustls-native-certs
[`rustls-platform-verifier`]: https://crates.io/crates/rustls-platform-verifier
[`webpki-roots`]: https://crates.io/crates/webpki-roots