我似乎与browser-sync
中使用的套接字以及我想要与socket.io
一起使用的套接字发生冲突。我通过browser-sync
任务(gulp
默认项目附带)使用Aurelia CLI
。发生的情况是只有browser-sync
套接字似乎有效,而主要在服务器端使用的socket.io
完全未读。我确实找到了解决问题的GitHub issue #71,还有其他Github issue #241,它们都提到了命名空间的使用。然而,我尝试了一些差异,即使它们运行时出现错误,也无法解决我的任何问题。
我主要在Gulp
项目中使用browser-sync
Aurelia CLI
,而后端NodeJS
使用Koa
。版本socket.io@1.6.0
而browser-sync@2.13.0
使用的端口用于前端:4000,后端:5000。
这是一个文件列表
Gulp - run.js
import gulp from 'gulp';
import browserSync from 'browser-sync';
import historyApiFallback from 'connect-history-api-fallback/lib';
import project from '../aurelia.json';
import build from './build';
import {CLIOptions} from 'aurelia-cli';
import url from 'url';
import proxy from 'proxy-middleware';
var portBackEnd = 5000;
var portFrontEnd = 4000;
var proxyOptionsAccessControl = function(req,res, next){
res.setHeader('Access-Control-Allow-Origin', '*');
next();
};
var proxyOptionsApiRoute = url.parse(`http://localhost:${portBackEnd}/api`);
proxyOptionsApiRoute.route = '/api';
var proxyOptionsAuthRoute = url.parse(`http://localhost:${portBackEnd}/auth`);
proxyOptionsAuthRoute.route = '/auth';
function log(message) {
console.log(message); //eslint-disable-line no-console
}
function onChange(path) {
log(`File Changed: ${path}`);
}
function reload(done) {
browserSync.reload();
done();
}
let serve = gulp.series(
build,
done => {
browserSync({
online: false,
open: false,
port: portFrontEnd,
notify: true,
logLevel: 'silent',
server: {
baseDir: ['.'],
middleware: [
proxyOptionsAccessControl,
proxy(proxyOptionsApiRoute),
proxy(proxyOptionsAuthRoute)
]
},
socket: {
domain: 'localhost:4000',
namespace: '/browsersync'
}
}, function(err, bs) {
let urls = bs.options.get('urls').toJS();
log(`Application Available At: ${urls.local}`);
log(`BrowserSync Available At: ${urls.ui}`);
done();
});
}
);
let refresh = gulp.series(
build,
reload
);
let watch = function() {
gulp.watch(project.transpiler.source, refresh).on('change', onChange);
gulp.watch(project.markupProcessor.source, refresh).on('change', onChange);
gulp.watch(project.cssProcessor.source, refresh).on('change', onChange);
};
let run;
if (CLIOptions.hasFlag('watch')) {
run = gulp.series(
serve,
watch
);
} else {
run = serve;
}
export default run;
使用Socket.io-Client和Aurelia(前端)
import io from 'socket.io-client';
var socket = io('http://localhost:5000');
// also tried with a namespace instead
//var socket = io('/todo-socket');
// ...
socket.on("todo_update", data => {
let pos = arrayFindObjectIndex(this.items, 'id', data.id);
if(pos >= 0) {
this.items.splice(pos, 1, data);
this.itemDoneCount = this.items.filter(x => x.completed).length;
}
});
NodeJS with Koa(后端)
// Middlewares
const app = require('koa')();
const serve = require('koa-static');
const api = require('koa-router')();
const assertTimeout = require('co-assert-timeout');
const http = require('http');
const server = require('http').createServer(app.callback());
const io = require('socket.io')(server);
// or without namespace: io.sockets.on("connection", function(socket) {
var tsp = io.of('/todo-socket');
tsp.on("connection", function(socket) {
console.log('A new WebSocket client connected with ID: ' + socket.client.id);
})
.error(function(err){
console.log("Changefeeds Failure: ", err);
return null;
});
socket.on('disconnect', function(data) {
console.log('A WebSocket client disconnnected with ID: ' + socket.client.id);
return null;
});
我尝试使用和不使用命名空间,但似乎没有改变任何东西。我提到browser-sync - socket option
修改
通过测试更多,实际上服务器端的socket.io
似乎根本不起作用。它不会从服务器输出console.log('connected with ID: ' + socket.client.id)
,但它也不会显示或抛出任何错误。服务器端的代码曾用于WebPack
,因此我认为它与browserSync
冲突有关。
答案 0 :(得分:1)
经过几天后,我开始工作了。我必须在browserSync
选项中以及客户端(Aurelia)中的两个不同位置更改命名空间,其中我使用另一个必须是不同命名空间的套接字。最后,必须使用NodeJS Koa
调用io.of('/clientNamespace')
。
重要提示,请注意browserSync
和客户端命名空间必须使用完整的URL声明:port + namespace(例如: http://localhost:4000/namespaceBs
),但在服务器端,命名空间仅与没有URL的名称一起使用(例如:/namespaceClient
)。
如果您有疑问,我将其称为todoSocket
,因为它是TODO App
所以为了简短起见,我更改了以下代码:
Gulp - run.js
let serve = gulp.series(
build,
done => {
browserSync({
online: false,
open: false,
port: portFrontEnd,
notify: true,
logLevel: 'silent',
server: {
baseDir: ['.'],
middleware: [
proxyOptionsAccessControl,
proxy(proxyOptionsApiRoute),
proxy(proxyOptionsAuthRoute)
]
},
socket: {
namespace: `http://localhost:4000/bs` // <<<< HERE >>>>
}
}, function(err, bs) {
let urls = bs.options.get('urls').toJS();
log(`Application Available At: ${urls.local}`);
log(`BrowserSync Available At: ${urls.ui}`);
done();
});
}
);
使用Socket.io-Client和Aurelia(前端)
import io from 'socket.io-client';
var socket = io('http://localhost:5000/todo-socket'); // <<<< HERE >>>>
NodeJS with Koa
const http = require('http');
const server = http.createServer(app.callback());
const io = require('socket.io')(server);
// Load config for RethinkDB and koa
const config = require("./config");
// attach on the todo-socket namespace, only the name (not the full URL)
var todoSocket = io.of('/todo-socket'); // <<<< HERE >>>>
todoSocket.on("connection", function(socket) { // <<<< AND HERE >>>>
console.log('A new TODO WebSocket namespace client connected with ID: ' + socket.client.id);
});
答案 1 :(得分:1)
对于本文中发生的其他任何人,以上内容均不适用于他们。我在配置中设置了proxy
proxy: {
target: `${protocol}://localhost:${SERVER__PORT}`,
},
最终使两个套接字一起工作的解决方案是简单地添加ws
proxy: {
target: `${protocol}://localhost:${SERVER__PORT}`,
ws: true,
},