Socket IO -- socket.emit firing every event twice - node.js

Question

socket.js:
var state = {
io: null
}
exports.init = function(io) {
state.io = io;
}
exports.get = function() {
return state.io;
}
exports.emit = function(message, data) {
console.log("emitting")
state.io.emit(message, data);
}
exports.onConnection = function(callback) {
state.io.once('connection', function (socket) {
callback(socket);
});
}
tags.js:
router.get('/', function (req, res) {
var DeviceIdentifier = 'WILL'
var NDefRecord = 'FROM_WILL'
req.headers['x-name'] = DeviceIdentifier
req.headers['x-content'] = NDefRecord
console.log("tags.js: GET");
socket.emit("tag:scan", {name: "000000000a0d9439", content: "adsf});
})
server.js
var io = require('socket.io')(server);
var socket = require('./socket');
socket.init(io);
socket.onConnection(function (data) {
console.log("Got Connection");
console.log(data);
});
No matter how I am doing it, the socket.emit function is called twice and data is getting stored twice as well.
I've tried looking up many examples and the problem still seems like it is persisting
Any help would be appreciated.
Thanks!

Answer 1

just add res.send . you are not sending any response to the browser so he try to refresh after x seconds
router.get('/', function (req, res) {
var DeviceIdentifier = 'WILL'
var NDefRecord = 'FROM_WILL'
req.headers['x-name'] = DeviceIdentifier
req.headers['x-content'] = NDefRecord
console.log("tags.js: GET");
socket.emit("tag:scan", {name: "000000000a0d9439", content: "adsf});
res.send('ok');
})