JAVASCRIPT

how to use of socket io on a route in nodejs

//Using Express 4, in your app.js file you can use
app.set('socketio', io);

//then in your router you can access it like this
router.post('/getRides', function(req, res, next) {
    var io = req.app.get('socketio');

    io.to(//socket.id//).emit("message", data);

    db.rides.find(function(err, docs) {
        res.json(docs);
    });
};

how to use of socket io on a route in nodejs

router.post('/getRides', function(req, res, next) {
    var io = req.app.get('socketio');

    io.to(//socket.id//).emit("message", data);

    db.rides.find(function(err, docs) {
        res.json(docs);
    });
};

Implement socket.io in node.js application controller

//app.js or index.js
const app = express();
var http = require("http");
var server=http.createServer(app).listen(2525, (req, res) => {
  console.log("Server running on", 2525);
});
var socketIO = require("socket.io");
var io = socketIO(server);
global.io = io //Importent line

//Add the below statement to your controller code
global.io.emit("eventname", "yourdata"); //Importent line