ihub-framework-js/database/connect.js

Legacy version of iHub Framework written in Javascript

const mongoose = require('mongoose');
const log = require('../logger');

const connect = new Promise((resolve, reject) => {
  /* Debug */
  log.debug('Connecting to the database');

  const {
    DATABASE_SYNTAX,
    DATABASE_HOST,
    DATABASE_PORT,
    DATABASE_DBNAME,
    DATABASE_USER,
    DATABASE_PASS,
    DATABASE_URI,
    DATABASE_USE_UNIFIED_TOPOLOGY,
  } = process.env;

  // TODO: Check why latter
  // (DeprecationWarning: collection.ensureIndex is deprecated. Use createIndexes instead.)
  mongoose.set('useCreateIndex', true);
  mongoose.set('useFindAndModify', false);
  mongoose.set('useUnifiedTopology', DATABASE_USE_UNIFIED_TOPOLOGY === 'true');

  const connectionString = DATABASE_URI || `${DATABASE_SYNTAX}://${DATABASE_HOST}:${DATABASE_PORT}/${DATABASE_DBNAME}`;

  mongoose
    .connect(connectionString, {
      dbName: DATABASE_DBNAME,
      user: DATABASE_USER,
      pass: DATABASE_PASS,
      useNewUrlParser: true,
      poolSize: 10,
    })
    .then(() => {
      log.debug('Database Connected');
      resolve(mongoose);
    }, (error) => {
      reject(error);
    });
});

module.exports = connect;