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既能做客户端也能做服务端

Project description

peer-protocol

基于 aiohttp 的 WebSocket 双向通信库,支持服务端广播、客户端断线重连。

特性

  • 服务端:WebSocket 服务、多客户端广播、自动清理断线连接
  • 客户端:断线自动重连、TCP 探活、统一生命周期回调
  • 类型提示:connect/disconnect 泛型,便于静态检查

安装

pip install peer-protocol

快速开始

服务端

import asyncio
from peer_protocol import Server

async def main():
    server = Server(host="0.0.0.0", port=8080)

    @server.on_receive
    async def _(payload):
        # 收到任意客户端消息时广播给所有客户端
        await server.broadcast(payload)

    await server.run()

if __name__ == "__main__":
    asyncio.run(main())

客户端

import asyncio
from peer_protocol import Client

async def main():
    # 需包含 /ws 路径
    client = Client(url="http://127.0.0.1:8080/ws")

    @client.on_connect
    async def _(ws):
        await client.send({"type": "hello", "message": "world"})

    @client.on_receive
    async def _(payload):
        print("收到:", payload)
        await client.stop()  # 收到消息后退出

    await client.run()

if __name__ == "__main__":
    asyncio.run(main())

API 概览

Server

参数/方法 说明
Server(host="0.0.0.0", port=8080, heartbeat=120) 创建服务端
await server.start() 启动服务
await server.stop() 停止服务
await server.run() 启动并阻塞直到 stop()
await server.broadcast(payload) 广播 JSON 数据到所有客户端
on_start, on_stop 启动/停止回调
on_connect, on_disconnect 连接/断开回调,参数为 WebSocketResponse
on_send, on_receive 发送/接收消息回调

Client

参数/方法 说明
Client(url, retry_interval=2, retry_timeout=5) 创建客户端
await client.start() 启动并开始重连
await client.stop() 停止
await client.run() 启动并阻塞直到 stop()
await client.send(payload) 发送 JSON 数据
client.connected 是否已连接
on_start, on_stop 启动/停止回调
on_connect, on_disconnect 连接/断开回调,参数为 ClientWebSocketResponse
on_send, on_receive 发送/接收消息回调

运行示例

# 终端 1:启动服务端
python -m examples.server

# 终端 2:启动客户端
python -m examples.client

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