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PONode function finishing before Mongoose db find method
 

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    <p>Why could the example below be returning the node middle-ware function before my <em>mongoose</em> db lookup function finishes? I am sure this is a async issue but I am a bit lost on why. </p> <p><strong>Middle-ware js file</strong></p> <pre><code>var mongoose = require('mongoose'), Schema = mongoose.Schema; function isUser(login){ var UsersSchema = new Schema({ user: String, user_type: String, password: String, first_name: String, middle_name:String, last_name: String, birth_date: Date, join_date: Date }); var UserModel = mongoose.model('users', UsersSchema); mongoose.connect('mongodb://localhost/identity'); mongoose.model('users', UsersSchema); var db = mongoose.connection; db.on('error', console.error.bind(console, 'connection error: ')); db.once('open', function cb () { UserModel.findOne({'user': login}, function (err, user){ if (err){ throw err; } console.log('connected to user db and preformed lookup.'); console.log(user); return user; }); }); } module.exports.authenticate = function (login, password, cb) { var user = isUser(login), msg; console.log(user); if (!user) { msg = 'Invalid User'; cb(null, msg); return; } if (user.password != password) { msg = 'Invalid Password'; cb(null, msg); return; } cb(user, null); }; </code></pre> <p><strong>Console Output</strong></p> <pre><code>undefined Login Failed! : Invalid User connected to user db and preformed lookup. { _id: 51c8e16ce295c5b71ac6b229, user: 'bclark@themindspot.com', user_type: 'admin_master', password: 'enter', first_name: 'Brandon', middle_name: 'Laurence', last_name: 'Clark', birth_date: Fri Mar 19 1982 00:00:00 GMT-0800 (PDT), join_date: Wed Jun 26 2013 00:00:00 GMT-0700 (PDT) } </code></pre>
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