bootstrap.js

var mongoose   = require('mongoose');
var config     = require('config');
var semver     = require('semver');

// configure mongodb
mongoose.connect(config.mongodb.connectionString || 'mongodb://' + config.mongodb.user + ':' + config.mongodb.password + '@' + config.mongodb.server +'/' + config.mongodb.database);
mongoose.connection.on('error', function (err) {
  console.error('MongoDB error: ' + err.message);
  console.error('Make sure a mongoDB server is running and accessible by this application');
  process.exit(1);
});
mongoose.connection.on('open', function (err) {
  mongoose.connection.db.admin().serverStatus(function(err, data) { 
    if (err) {
      if (err.name === "MongoError" && err.errmsg === 'need to login') {
        console.log('Forcing MongoDB authentication');
        mongoose.connection.db.authenticate(config.mongodb.user, config.mongodb.password, function(err) {
          if (!err) return;
          console.error(err);
          process.exit(1);
        });
        return;
      } else {
        console.error(err);
        process.exit(1);
      }
    }
    if (!semver.satisfies(data.version, '>=2.1.0')) {
      console.error('Error: Uptime requires MongoDB v2.1 minimum. The current MongoDB server uses only '+ data.version);
      process.exit(1);
    }
  });
});


module.exports = mongoose;