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agent-remote-transport-ws

v0.1.0

Published

WebSocket transport package for agent-remote.

Readme

agent-remote-transport-ws

语言:English | 简体中文

agent-remote-transport-ws 提供 WebSocket transport,用于 Agent Remote 浏览器客户端和服务端 WebSocket 连接。

安装

npm install agent-remote-transport-ws agent-remote-core

通常你会通过 agent-remote-client/ws 使用浏览器端封装。

浏览器端用法

import { createWebSocketTransport, createWebSocketTransportConfig } from "agent-remote-transport-ws";

const transport = createWebSocketTransport(createWebSocketTransportConfig({
  url: "ws://localhost:3000/agent",
  reconnect: true,
  reconnectDelayMs: 250,
  maxReconnectAttempts: 5
}));

transport.onMessage((message) => {
  console.log("Agent Remote message:", message);
});

服务端 socket 包装

如果服务端框架已经提供 WebSocket-like socket,可以用 createWebSocketServerTransport 包装成统一的 TransportConnection

import { createWebSocketServerTransport } from "agent-remote-transport-ws";

const transport = createWebSocketServerTransport(socket);
sessionManager.attachTransport("session-1", transport);

socket 需要实现:

  • send(data: string): 发送字符串数据。
  • addEventListener(type, listener): 监听 messageopenclose
  • close(): 关闭连接。
  • readyState: 可选,用于判断是否已打开。

配置

  • url: WebSocket URL,必填。
  • reconnect: 是否自动重连,默认 true
  • reconnectDelayMs: 重连延迟,默认 250
  • maxReconnectAttempts: 最大重连次数,默认 5

createWebSocketTransportConfig 会校验 url 是否存在,并补齐默认值。

发送与重连

  • transport 会把协议消息序列化为 JSON 后通过 WebSocket 发送。
  • 如果 socket 正在连接,发送请求会进入队列,并在 open 后 flush。
  • 如果连接关闭且允许重连,transport 会按配置延迟重新连接。
  • 重连成功后会触发 onReconnect,上层 SDK 可以重新注册工具。

依赖注入

const transport = createWebSocketTransport(config, {
  createWebSocket(url) {
    return new WebSocket(url);
  },
  scheduleReconnect(reconnect, delayMs) {
    return setTimeout(reconnect, delayMs);
  },
  onProtocolDrop(event) {
    console.warn("Dropped protocol payload", event);
  }
});
  • createWebSocket: 自定义 WebSocket 创建函数,常用于测试或非浏览器环境。
  • scheduleReconnect: 自定义重连调度。
  • onProtocolDrop: malformed JSON 或无效协议消息回调。

注意事项

  • WebSocket transport 支持握手,supportsHandshaketrue
  • 浏览器环境需要 globalThis.WebSocket,除非你传入 createWebSocket
  • 无效 JSON 或协议校验失败的消息会被丢弃,并通过 onProtocolDrop 上报。