I am looking for guidance on how to effectively send messages from the server to the client and incorporate this functionality into routes/index.js within my mean stack project. Can anyone provide insights on using socket.io in this context?:
router.post('/message/sendMessage', function (req, res, next) {
console.log("router.post /message/sendMessage " + req.body)
// send req.body to client
});
PS: I have previously utilized socket.io once in the project: establishing a socket connection from the client to the server which emitted a message called id that was received by the client. Example of client-side code:
socket = io.connect();
socket.on('id', function (id) { ... })
In the server-side file www:
io.sockets.on('connection', function (socket) {
console.log("LOG: just connected: " + socket.id);
socket.emit('id', socket.id);
socket.on('disconnect', function () {
console.log("LOG: just disconnected: " + socket.id)
})
})
However, I am struggling with implementing socket.emit within ExpressJS routing...
Edit 1: Experimented with the following approach to broadcast a message to all clients, but encountered issues where only "before emit" was displayed in the console and the client returned an error message "
Failed to load resource: the server responded with a status of 500 (Internal Server Error)router.post('/message/sendMessage', function (req, res, next) {
console.log("router.post /message/sendMessage");
console.log("before emit");
io.sockets.on('connection', function (socket) {
console.log("LOG: just connected: " + socket.id);
io.emit("message", "this is a test");
socket.on('disconnect', function () {
console.log("LOG: just disconnected: " + socket.id)
})
})
console.log("after emit");
});