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"use strict";
var Redis = require('ioredis'),
_ = require('lodash');
/**
* Redis module
*
* @param {Object} appconfig Application config
* @return {Redis} Redis instance
*/
module.exports = (appconfig) => {
let rd = null;
if(_.isArray(appconfig.redis)) {
rd = new Redis.Cluster(appconfig.redis, {
scaleReads: 'master',
redisOptions: {
lazyConnect: false
}
});
} else {
rd = new Redis(_.defaultsDeep(appconfig.redis), {
lazyConnect: false
});
}
// Handle connection errors
rd.on('error', (err) => {
winston.error('Failed to connect to Redis instance(s). [err-1]');
});
rd.on('node error', (err) => {
winston.error('Failed to connect to Redis instance(s). [err-2]');
});
return rd;
};