There is backend spring boot and stomp(protocol under websocket)
So, I used oficial example from git https://github.com/spring-guides/gs-messaging-stomp-websocket And started it. I cat use js client from the example and can send messages - everything okey
But I can't to send message from postman Successful connection, but messages doen't send to backend(no responses and can't to catch execution under debug controller)
How to correct send messages via stomp using postman?
You can send JSON message by Send Button with a specific channel.
Save as server.js
const express = require('express');
const { createServer } = require('http');
const { join } = require('path');
const { Server } = require('socket.io');
const app = express();
const server = createServer(app);
const io = new Server(server);
io.on('connection', (socket) => {
console.log('a client connected');
socket.emit('to_client', { message: 'Hello from server!' });
// Listen a message from the client
socket.on('to_server', (data) => {
console.log('From client:', data);
socket.emit('to_client', { message: `Server Received: ${JSON.stringify(data)}` });
});
});
server.listen(3000, () => {
console.log('server running at http://localhost:3000');
});
npm install express socket.io
node server.js
URL
ws://localhost:3000
To server channel (or topic)
to_server
To server payload
{ "name": "Nick", "data": 1234 }
To client channel (or topic)
to_client
Server-side
Server-side
gradle bootRun. Browser open localhost:8080 works to send name and receive Greetings. I try to connect by Postman's WebSocket. It works send message and connection but It can't receive messages. Also I try to connect socket.io as same as my answer but It makes an error to GET connection. I think STORM web socket protocol can't handle by Postman Socket.IO