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server.ts
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server.ts
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import mongoose = require('mongoose');
import {config} from './config/env';
import {app} from './config/restify';
import {logger} from './utils/logger';
// use native ES6 promises instead of mongoose promise library
mongoose.Promise = global.Promise;
// capture unhandledRejection errors
process.on('unhandledRejection', error => {
console.error('<ERROR> server.ts::unhandledRejection:\n', error);
});
// connect to database
const connection = mongoose.connect(config.db, {
server: {
socketOptions: {
keepAlive: 1,
},
},
}).connection;
// print to log if debug flag is set
if (config.debug) mongoose.set('debug', true);
// throw error on connection error
connection.on('error', (err: any) => {
throw new Error(`Unable to connect to database: ${err}`);
});
// intial setup upon connection success
let onConnect = Promise.resolve(connection.once('open', () => {
return Promise.resolve()
.then(() => {
logger.info(`\nConnected to database: ${config.db}`);
return false;
})
.then(() => {
return app.listen(config.port, () => {
logger.info(`\n${config.app_name} is listening on ${app.url}`);
logger.info('config:', config);
return true;
});
})
.catch(logger.info);
}));
// Enable to seed data in new app and database.
export {app, onConnect};