WebTransport protocol, pure-rust, async-friendly.
WebTransport is a new protocol being developed to enable low-latency, bidirectional communication between clients and servers over the web. It aims to address the limitations of existing protocols like HTTP and WebSocket by offering a more efficient and flexible transport layer.
- 🚀 Low latency: WebTransport is designed to minimize latency, making it suitable for real-time applications such as gaming, video streaming, and collaborative editing.
- 🔄 Bidirectional communication: WebTransport allows simultaneous data exchange between the client and server, enabling efficient back-and-forth communication without the need for multiple requests.
- 🔀 Multiplexing: With WebTransport, multiple streams can be multiplexed over a single connection, reducing overhead and improving performance.
- 🔒 Security: WebTransport benefits from the security features provided by the web platform, including transport encryption and same-origin policy.
- 🌐 Native Browser Support: WebTransport is natively supported in modern web browsers, ensuring seamless integration and enhanced performance for web applications.
Please be aware that WebTransport is still a draft and not yet standardized. The WTransport library, while functional, is not considered completely production-ready. It should be used with caution and may undergo changes as the WebTransport specification evolves.
| Server | Client |
|---|---|
#[tokio::main]
async fn main() -> Result<()> {
let config = ServerConfig::builder()
.with_bind_default(4433)
.with_identity(&identity)
.build();
let connection = Endpoint::server(config)?
.accept()
.await // Awaits connection
.await? // Awaits session request
.accept() // Accepts request
.await?; // Awaits ready session
let stream = connection.accept_bi().await?;
// ...
} |
#[tokio::main]
async fn main() -> Result<()> {
let config = ClientConfig::default();
let connection = Endpoint::client(config)?
.connect("https://[::1]:4433")
.await?;
let stream = connection.open_bi().await?.await?;
// ...
} |
WebTransport is supported in modern browsers, enhancing the capabilities of web applications.
For instance, you can create a native browser WebTransport client connecting to a Rust server using the following JavaScript code:
// Create a WebTransport instance connecting to the Rust server
let transport = new WebTransport('https://[::1]:4433');
await transport.ready;
// Create a bidirectional stream
let stream = await transport.createBidirectionalStream();
// Send data from the client to the server
await stream.writable.getWriter().write(new TextEncoder().encode("hello"));
// Read data reply from the server
let data = await stream.readable.getReader().read();
console.log(data);Check out the W3C WebTransport API documentation for more details and to explore the full capabilities of WebTransport in the browser.
git clone https://github.com/BiagioFesta/wtransport.gitcd wtransport/The examples/full.rs is a minimal but complete server example that demonstrates the usage of WebTransport.
You can run this example using Cargo, Rust's package manager, with the following command:
cargo run --example fullThis example initiates an echo WebTransport server that can receive messages. It also includes an integrated HTTP server.
Open a supported web browser and navigate to the page http://127.0.0.1:8080.
WTransport has bindings for the following languages:
- Elixir: wtransport-elixir