Webpack Laravel回声,角度6个网页错误。Echo不是构造函数
我正在使用Laravel后端和Angular 6作为前端,并尝试使用socket.io实现广播 我已经为npm安装了laravel echo socket.io。根据laravel文档中的教程,我将导入相应的库并尝试实例化一个新的echo实例。这就是我的app.module.ts中的外观:Webpack Laravel回声,角度6个网页错误。Echo不是构造函数,webpack,socket.io,angular6,laravel-echo,Webpack,Socket.io,Angular6,Laravel Echo,我正在使用Laravel后端和Angular 6作为前端,并尝试使用socket.io实现广播 我已经为npm安装了laravel echo socket.io。根据laravel文档中的教程,我将导入相应的库并尝试实例化一个新的echo实例。这就是我的app.module.ts中的外观: import { Echo } from 'laravel-echo'; declare global { interface Window { io: any; } interface W
import { Echo } from 'laravel-echo';
declare global {
interface Window { io: any; }
interface Window { Echo: any; }
}
window.io = window.io || require('socket.io-client');
window.Echo = window.Echo || new Echo({
broadcaster: 'socket.io',
host: 'http://localhost:6001'
});
当我尝试编译应用程序时,出现以下错误:
未捕获类型错误:laravel\u echo\u网页包\u导入的模块\u 32\u。echo不是构造函数
第59行引用的是新的Echo。。。呼叫
感谢您的建议。为了解决此问题,我删除了app.module.ts文件中包含的所有内容,并在angular.json文件的脚本数组中包含了节点模块的路径:
"scripts": [
"node_modules/hammerjs/hammer.min.js",
"node_modules/laravel-echo/dist/echo.js"
],
在该组件中,我可以引用Echo对象:
// At the top of the file
declare global {
interface Window { io: any; }
interface Window { Echo: any; }
}
declare var Echo: any;
window.io = window.io || require('socket.io-client');
window.Echo = window.Echo || {};
无论何时,只要您想开始聆听:
window.Echo = new Echo({
broadcaster: 'socket.io',
host: 'https://host-address.com:6001'
});
window.Echo.channel('channel-name')
.listen('.channelEvent', (data) => {
console.log('From laravel echo: ', data);
});
希望这能为其他人节省一些时间 我通过在src文件夹中创建“laravel echo.d.ts”文件来解决这个问题。并按以下方式在其中声明模块
declare module 'laravel-echo';
然后将代码从
import {Echo} from 'laravel-echo';
到
问题解决。这不是最漂亮的,但它可以工作: 安装依赖项
yarn add laravel-echo
yarn add types/node
import Echo from 'laravel-echo';
(window as any).global = window;
declare var require: any;
declare global {
interface Window {
io: any;
}
interface Window {
Echo: any;
}
}
window.io = window.io || require('socket.io-client');
window.Echo = window.Echo || {};
window.Echo = new Echo({
broadcaster: 'socket.io',
host: 'http://localhost:6001'
});
window.Echo.channel('channel-name')
.listen('.channelEvent', (data) => {
console.log('From laravel echo: ', data);
});
添加到tsconfig.json
"types" : ["node"],
添加到app.module.ts
yarn add laravel-echo
yarn add types/node
import Echo from 'laravel-echo';
(window as any).global = window;
declare var require: any;
declare global {
interface Window {
io: any;
}
interface Window {
Echo: any;
}
}
window.io = window.io || require('socket.io-client');
window.Echo = window.Echo || {};
window.Echo = new Echo({
broadcaster: 'socket.io',
host: 'http://localhost:6001'
});
window.Echo.channel('channel-name')
.listen('.channelEvent', (data) => {
console.log('From laravel echo: ', data);
});