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link-x

v0.1.0

Published

基于 postMessage 的安全跨窗口通信库,提供类型安全的请求-响应模式通信支持。

Downloads

6

Readme

LinkX

基于 postMessage 的安全跨窗口通信库,提供类型安全的请求-响应模式通信支持。

安装

npm install link-x

使用示例

// 父窗口
import { LinkX } from 'link-x';
const iframe = document.querySelector('iframe');
const x = new LinkX(iframe.contentWindow!);

// 发送请求并等待响应
x.post('getUrl')
  .then((result) => console.log(result))
  .catch((err) => console.error(err));

// 注册处理器
x.on('loadTime', async (data: number) => {
  console.log({ data });
});
// 子窗口(不同域)
const y = new LinkX(window.parent);

y.on('getUrl', () => {
  return location.href;
});

// 双向通信
y.post('loadTime', Date.now());

API

new LinkX(targetWindow: Window)

创建与目标窗口的通信实例

post<T, R>(type: string, data?: T): Promise<R>

发送消息并返回 Promise:

  • type: 消息类型标识符
  • data: 要传递的任意数据
  • 返回: 包含响应结果的 Promise

on<T, R>(type: string, handler: (data: T) => Promise<R> | R)

注册消息处理器:

  • type: 消息类型标识符
  • handler: 处理函数,接收消息数据并返回响应数据
  • 支持多个处理器并行执行
  • 自动捕获同步/异步错误并返回给调用方

off(type: string, handler?)

移除指定类型的所有或特定处理器

destroy()

销毁实例并:

  • 移除所有事件监听
  • 取消所有未完成请求

特性

  • 🛡️ 安全校验:自动验证消息来源窗口
  • ⏱️ 超时处理:默认 30 秒请求超时
  • 💻 TypeScript 支持:完整的类型推导