我是socket.io的新用户,在Angular中,我向SailsJS(后端)提出了一个套接字请求,但在请求后出现以下错误:
Sails响应:错误:Express 4 / Sails v1中不再支持res.json()
的二次使用。请改用res.status(statusCode).json(body)
。
以角度:
import { Injectable } from '@angular/core';
import * as io from 'socket.io-client';
import * as sailsIOClient from 'sails.io.js';
import {Observable} from 'rxjs';
@Injectable({
providedIn: 'root'
})
export class SocketIoService {
private socket = sailsIOClient(io);
constructor() {
this.socket.sails.url = 'http://localhost:1337';
}
sendRequest() {
console.log('call sokcet')
this.socket.socket.get('/socket', (resData) => {
console.log('Sails responded with: ', resData);
});
}
}
在Sails js中,我具有以下配置和代码:在routes.js中:
'get /socket': 'TaskController.Index',
在TaskController.js中:
module.exports = {
Index: function (req, res) {
console.log('in sails socket', req.isSocket);
if( !req.isSocket) {
return res.badRequest();
}
sails.sockets.join(req.socket, 'task');
sails.sockets.broadcast('task', 'list');
// sails.sockets.blast('task', 'entry');
return res.ok();
}
}
在socket.js中:
transports: ['polling', 'websocket'],
我通过更改令牌授权功能中的“返回码”解决了上述问题:已解析的代码:
return res.status(401).json({err: 'No Authorization header was found'});
旧代码(抛出错误):
return res.json(401, {err: 'No Authorization header was found'});