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yy-sse-client

v1.0.0

Published

SSE (Server-Sent Events) 客户端工具

Readme

yy-sse-client

SSE (Server-Sent Events) 客户端工具。

安装

npm install yy-sse-client

使用

import SSEClient from 'yy-sse-client';

// 创建 SSE 客户端实例
const sseClient = new SSEClient(
  '/api/events', // endpoint
  { userId: '123' }, // 查询参数
  (event) => { // 消息处理回调
    console.log('收到消息:', event.data);
  },
  { // 可选配置
    headers: {
      'Authorization': 'Bearer token'
    }
  }
);

// 初始化连接
await sseClient.init();

// 检查连接状态
if (sseClient.isConnected()) {
  console.log('已连接');
}

// 关闭连接
sseClient.close();

在 Vue 组件中使用

<script setup>
import { onMounted, onUnmounted } from 'vue';
import SSEClient from 'yy-sse-client';

let sseClient = null;

onMounted(() => {
  sseClient = new SSEClient(
    '/api/chat/stream',
    { conversationId: '123' },
    (event) => {
      // 处理消息
      const data = JSON.parse(event.data);
      console.log(data);
    }
  );
  
  sseClient.init();
});

onUnmounted(() => {
  if (sseClient) {
    sseClient.close();
  }
});
</script>

API

SSEClient 类

构造函数

new SSEClient(endpoint, params, onMessage, options)

参数:

  • endpoint (string) - SSE 端点 URL
  • params (object) - 查询参数对象
  • onMessage (Function) - 消息处理回调函数
  • options (object) - 可选配置
    • method (string) - HTTP 方法,默认 "GET"
    • openWhenHidden (boolean) - 页面隐藏时保持连接,默认 true
    • headers (object) - 请求头
    • 其他 fetchEventSource 支持的选项

方法

  • init() - 初始化 SSE 连接
  • close() - 关闭 SSE 连接
  • isConnected() - 检查连接状态
  • buildUrl() - 构建完整的 URL(内部方法)

特性

  • ✅ 基于 @microsoft/fetch-event-source
  • ✅ 支持查询参数
  • ✅ 自动重连(由 fetch-event-source 处理)
  • ✅ 可配置选项
  • ✅ TypeScript 支持