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index.js
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index.js
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const mongoose = require('mongoose');
const util = require('util');
// config should be imported before importing any other file
const config = require('./config/config');
const app = require('./config/express');
const socketApi = require('./server/socket/socket');
const debug = require('debug')('chat-api:index');
// make bluebird default Promise
Promise = require('bluebird'); // eslint-disable-line no-global-assign
// plugin bluebird promise in mongoose
mongoose.Promise = Promise;
// connect to mongo db
const mongoUri = config.mongo.host;
mongoose.connect(mongoUri, { keepAlive: 1, useNewUrlParser: true });
mongoose.connection.on('error', () => {
throw new Error(`unable to connect to database: ${mongoUri}`);
});
// print mongoose logs in dev env
if (config.mongooseDebug) {
mongoose.set('debug', (collectionName, method, query, doc) => {
debug(`${collectionName}.${method}`, util.inspect(query, false, 20), doc);
});
}
// module.parent check is required to support mocha watch
// src: https://github.com/mochajs/mocha/issues/1912
if (!module.parent) {
// listen on port config.port
let server = app.listen(config.port, () => {
console.info(`server started on port ${config.port} (${config.env})`); // eslint-disable-line no-console
});
var io = socketApi.socketApi.io;
io.attach(server);
}
module.exports = app;