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README
Apache-2.0

Golang实现的分布式WebSocket微服务

Go GitHub release Travis (.org) star

简介

本系统基于Golang、Redis、RPC实现分布式WebSocket微服务,也可以单机部署,单机部署不需要Redis、RPC。分布式部署可以支持nginx负责均衡、水平扩容部署,程序之间使用RPC通信。

基本流程为:用ws协议连接本服务,得到一个clientId,由客户端上报这个clinetId给服务端,服务端拿到这个clientId之后,可以给这个客户端发送信息,绑定这个客户端都分组,给分组发送消息。

目前实现的功能有,给指定客户端发送消息、绑定客户端到分组、给分组里的客户端批量发送消息、获取在线的客户端、上下线自动通知。适用于长连接的大部分场景,分组可以理解为聊天室,绑定客户端到分组相当于把客户端添加到聊天室,给分组发送信息相当于给聊天室的每个人发送消息。

文档

  1. 技术方案架构
  2. 接口文档

SDK

  1. PHP版:https://github.com/woodylan/go-websocket-php-sdk

使用

下载本项目:

这里已经打包好了,下载相应的环境,支持Linux、Windows、MacOS环境。

https://github.com/woodylan/go-websocket/releases

你也可以选择自己编译:

git clone https://github.com/woodylan/go-websocket.git

编译:

// 编译适用于本机的版本
go build

// 编译Linux版本
CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build

// 编译Windows 64位版本
CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build

// 编译MacOS版本
CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build

执行:

编译成功之后会得到一个二进制文件go-websocket,执行该二进制文件,文件名后面跟着的是端口号,下面的命令666则表示端口号,你可以可以改成其他的。

./go-websocket 666

连接测试:

打开支持Websocket的客户端,输入 ws://127.0.0.1:666/ws 进行连接,连接成功会返回clientId

单机部署

单机部署很简单,不需要配置Redis,只需要编译然后运行该二进制文件就可以了,步骤如上。

分布式部署

安装ETCD: 参考网上教程

配置文件:

配置文件位于项目根目录的configs/config.inicluster为true表示分布式部署。

[common]
# 是否分布式部署
cluster = true
# 对称加密key 16位
crypto_key = xxxxxxxxxxxxxxxx

[etcd]
host = 127.0.0.1:2379

运行项目:

在不同的机器运行本项目,注意配置号端口号,项目如果在同一机器,则必须用不同的端口。你可以用supervisor做进程管理。

配置Nginx负载均衡:

upstream ws_cluster {
    server 127.0.0.1:666;
    server 127.0.0.1:667;
}

server {
    listen  660;
    server_name ws.example.com;

    access_log /logs/access.log;
    error_log /logs/error.log;
    
    location /ws {
        proxy_pass http://ws_cluster; # 代理转发地址
        proxy_http_version 1.1;

        proxy_read_timeout 60s; # 超时设置

        # 启用支持websocket连接
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    location /api {
        proxy_set_header X-Forwarded-For $remote_addr;
        proxy_set_header Host            $http_host;

        proxy_pass http://ws_cluster; # 代理转发地址
    }
}

至此,项目部署完成。

实现的功能

  • 分布式
  • 账户授权模式
  • 不同业务系统隔离
  • 发送给指定客户端
  • 发送给指定分组
  • 上下线通知
  • 群广播
  • 错误日志
  • 参数校验
  • 关闭某个连接
  • 查询某个客户端是否在线

沟通交流

QQ群:1028314856

Golang websocket分布式交流群
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简介

基于Golang实现的分布式WebSocket微服务,仅依赖Etcd,简单易部署,支持高并发、单发、群发、广播,其它项目可以通过http与本项目通信。 展开 收起
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