Unable to add $scope to service in angularjs?

Question

The code for my angular service is

// service/user.js
const env = require('../environment');

module.exports = function ($scope) {
    this.is_authenticated = false;
};

and i am initialising the service using

// service/index.js
const angular = require('angular');

var app = angular.module('application');
app.service('auth',require('./user'));

The angular app definition is

// app.js
const angular = require('angular');

var app = angular.module('application',[]);

require('./config');
require('./service');

The error i am getting is

Unknown provider: $scopeProvider <- $scope <- auth

The project is being built using browserify where am i going wrong with this ?