# Sanic — Async Python Web Framework Built for Speed

> Sanic is an async Python web framework built for speed. Native async/await from the ground up, HTTP/1.1 and HTTP/2, WebSocket, streaming, and auto-generated API docs. Designed to be fast, flexible, and easy to use.

## Install

Save as a script file and run:

## Quick Use

```bash
pip install sanic
```

```python
from sanic import Sanic, json

app = Sanic("TokRepo")

@app.get("/api/assets")
async def list_assets(request):
    return json([{"repo": "react", "stars": 230000}])

@app.post("/api/assets")
async def create_asset(request):
    return json(request.json, status=201)

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=8000, auto_reload=True)
```

## Intro

Sanic is an async Python web framework built for speed. It was one of the first Python frameworks to embrace `async`/`await` natively (Python 3.5+), using uvloop for higher throughput. Features built-in server, WebSocket support, streaming, middleware, and auto-generated OpenAPI docs.

- **Repo**: https://github.com/sanic-org/sanic
- **Stars**: 18K+
- **Language**: Python
- **License**: MIT

## What Sanic Does

- **Async native** — `async def` handlers throughout
- **Built-in server** — no external WSGI/ASGI server needed
- **WebSocket** — native support
- **Streaming** — request and response streaming
- **Middleware** — request/response lifecycle hooks
- **Blueprints** — modular route grouping
- **OpenAPI** — auto-generated API docs
- **Signals** — event-based hooks
- **Background tasks** — via `app.add_task()`

## Comparison

| Framework | Server | Speed |
|---|---|---|
| Sanic | Built-in (uvloop) | Very fast |
| FastAPI | Uvicorn | Very fast |
| Flask | Gunicorn | Medium |
| Tornado | Built-in | Fast |

## 常见问题 FAQ

**Q: Sanic vs FastAPI？**
A: FastAPI 有 Pydantic 验证 + 自动 OpenAPI + 更大社区；Sanic 有内置服务器、更灵活的中间件、更早的 async 支持。新 API 项目多选 FastAPI。

## 来源与致谢 Sources

- Docs: https://sanic.dev
- GitHub: https://github.com/sanic-org/sanic
- License: MIT

---
Source: https://tokrepo.com/en/workflows/412ffff9-3634-11f1-9bc6-00163e2b0d79
Author: Script Depot