# Tide — Async Web Framework for Rust

> Tide is an asynchronous web framework for Rust that provides a minimal, composable API inspired by Express and Koa for building HTTP servers with async/await and the async-std runtime.

## Install

Save in your project root:

# Tide — Async Web Framework for Rust

## Quick Use
```toml
# Cargo.toml
[dependencies]
tide = "0.16"
async-std = { version = "1", features = ["attributes"] }
```
```rust
#[async_std::main]
async fn main() -> tide::Result<()> {
    let mut app = tide::new();
    app.at("/").get(|_| async { Ok("Hello, Tide!") });
    app.listen("127.0.0.1:8080").await?;
    Ok(())
}
```

## Introduction
Tide is an async web framework for Rust built on the async-std runtime. It provides a small, composable API for defining HTTP endpoints with middleware, state management, and streaming support. Tide aims to make async Rust web development approachable by offering a clean, Express-inspired interface.

## What Tide Does
- Defines HTTP routes with async handler functions that return Result types
- Supports middleware composition for logging, CORS, sessions, and error handling
- Manages application state via a shared State type available in all handlers
- Handles streaming request and response bodies for large payloads
- Provides built-in support for JSON, form data, and file serving

## Architecture Overview
Tide is built on async-std and http-types. Requests flow through a middleware stack, then match against a route trie. Each handler receives a Request object containing the shared application state, extracts parameters or body data, and returns a Response. The framework is single-threaded per listener by default but can be wrapped in multi-listener setups for concurrency.

## Self-Hosting & Configuration
- Requires Rust 1.65+ with the 2021 edition
- Add `tide` and `async-std` to Cargo.toml dependencies
- Initialize with `tide::new()` or `tide::with_state(state)` for shared state
- Bind to address with `app.listen("0.0.0.0:8080").await`
- Deploy as a compiled binary; pair with a reverse proxy for TLS

## Key Features
- Clean async/await API reduces the complexity of asynchronous Rust code
- Shared application state is type-safe and available in every handler
- Middleware is composable with before, after, and around hooks
- Nested routes and route prefixes keep endpoint definitions organized
- Server-Sent Events support for real-time push from server to client

## Comparison with Similar Tools
- **Actix Web** — more mature with higher throughput; Tide prioritizes API simplicity
- **Axum** — Tokio-based with extractor pattern; Tide uses async-std runtime
- **Rocket** — macro-driven with compile-time checks; Tide is more lightweight
- **Warp** — filter-based composition; Tide uses traditional route-and-handler style
- **Poem** — feature-rich with OpenAPI support; Tide is more minimal

## FAQ
**Q: Why does Tide use async-std instead of Tokio?**
A: Tide was built by the async-std team as a showcase for the runtime. It embraces async-std's task model and I/O traits.

**Q: Is Tide production-ready?**
A: Tide is usable for production workloads but has not reached 1.0. Evaluate stability requirements before choosing it for critical services.

**Q: Can I use Tide with Tokio?**
A: Tide is designed for async-std. For Tokio-based projects, Axum or Actix Web are better fits.

**Q: Does Tide support WebSockets?**
A: WebSocket support is available via the `tide-websockets` crate as a middleware extension.

## Sources
- https://github.com/http-rs/tide
- https://docs.rs/tide

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Source: https://tokrepo.com/en/workflows/asset-47377ef8
Author: AI Open Source