来自西班牙的下午好，我正在尝试在客户端和实际的机器人之间设置一个中间nodejs服务器，但是当我尝试与我的机器人建立套接字连接它说有一个握手协议失败。
现在我的代码是
服务器app.js
require('dotenv').config();
const express = require('express');
const path = require('path');
const logger = require('morgan');
const cookieParser = require('cookie-parser');
const bodyParser = require('body-parser');
const session = require("express-session");
const SequelizeStore = require('connect-session-sequelize')(session.Store);
const Sequelize = require('sequelize');
const sequelize = new Sequelize(process.env.DBNAME, process.env.DBUSER, process.env.DBPASSWORD, {
dialect: 'mysql'
});
const sequelizeStoreSession = new SequelizeStore({ db: sequelize })
const app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'hbs');
// default value for title local
app.locals.title = 'Human Data Demo';
// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
// SESSION PERSISTANCE USING COOKIES
sequelizeStoreSession.sync();
// Enable authentication using session + passport
app.use(session({
secret: 'secret',
resave: true,
saveUninitialized: true,
cookie: {
httpOnly: true,
maxAge: 2419200000
},
store: sequelizeStoreSession
}))
require('./passport/index')(app);
const index = require('./routes/index');
app.use('/', index);
// catch 404 and forward to error handler
app.use((req, res, next) => {
const err = new Error('Not Found');
err.status = 404;
next(err);
});
module.exports = app;
我用来将服务器连接到机器人的路由文件
router.post('/messages/', (req, res, next) => {
const client = new WebSocketClient();
console.log('cliente: ', client);
client.on('connectFailed', err => {
console.log(err);
next(err);
})
client.on('connect', connection => {
console.log('connected');
connection.on('error', function (error) {
console.log("Connection Error: " + error.toString());
});
connection.on('close', function () {
console.log('echo-protocol Connection Closed');
});
connection.on('message', function (message) {
if (message.type === 'utf8') {
console.log("Received: '" + message.utf8Data + "'");
}
});
connection.send(req.body.text);
})
client.connect('http://55dce78c.ngrok.io/api/messages', 'echo-protocol')
console.log('connectado ', client)
})
和实际的机器人
var restify = require('restify');
var builder = require('botbuilder');
var http = require('http');
var server = restify.createServer();
server.listen(process.env.port || process.env.PORT || 3978, function () {
console.log('listening to %s', server.name, server.url);
});
const connector = new builder.ChatConnector({
appId: process.env.MICROSOFT_APP_ID,
appPassword: process.env.MICROSOFT_APP_PASSWORD
});
const bot = new builder.UniversalBot(connector);
server.post('/api/messages', connector.listen());
bot.dialog('/', function (session, args) {
session.send('Hello World');
});
你能给我一些建议吗？
编辑：这是我现在得到的错误
POST /api/project/messages - - ms - - Error: Server responded with a non-101 status: 502 Bad Gateway Response Headers Follow: cache-control: no-cache connection: close content-type: text/html at WebSocketClient.failHandshake (C:\Users\David\Desktop\HumanData\Proyecto Acceso API\API_FINAL\node_modules\websocket\lib\WebSocketClient.js:326:32) at ClientRequest.<anonymous> (C:\Users\David\Desktop\HumanData\Proyecto Acceso API\API_FINAL\node_modules\websocket\lib\WebSocketClient.js:265:18) at emitOne (events.js:116:13) at ClientRequest.emit (events.js:211:7) at HTTPParser.parserOnIncomingClient [as onIncoming] (_http_client.js:543:21) at HTTPParser.parserOnHeadersComplete (_http_common.js:112:17) at Socket.socketOnData (_http_client.js:440:20) at emitOne (events.js:116:13) at Socket.emit (events.js:211:7) at addChunk (_stream_readable.js:263:12) at readableAddChunk (_stream_readable.js:250:11) at Socket.Readable.push (_stream_readable.js:208:10) at TCP.onread (net.js:597:20)
您的WebSocket请求失败，因为客户端期望WebSocket Handshake Response。 /api/messages端点不是用于启动WebSocket连接，而是用于向机器人发送消息，因此它会给你一个Bad Gateway并且握手协议失败。
如果您不想通过WebSocket连接到机器人，则需要使用DirectLine API执行以下操作：
POST /v3/directline/tokens/generatePOST /v3/directline/conversations开始对话这将为您提供一个带有conversationId和streamUrl的Conversation对象，其中所有机器人响应都将来自，您可以像这样使用它：
const WebSocket = require('ws');
const ws = new WebSocket(streamUrl);
ws.on('message', function incoming(data) {
// this is a bot response
console.log(data);
});
如果对话已经开始并且您已经有conversationId，那么您可以使用reconnecting to conversations的终点。
所有这一切都很好，如果你想手工完成，但我建议你使用DirectLine JS，这将使你的事情更容易。