Elasticsearch-js: Opening connection in one file and using it elsewhere

[ev0065]

Hi all, I am using elasticsearch-js in my application. It works perfectly, except for the fact that I am creating a new connection in about 4 different files instead of using the same connection every time. The code is pretty simple if anyone wants to see it:

var elasticsearch = require('elasticsearch');

var client = new elasticsearch.Client({
    host: 'MY_HOST',
    log: 'LOG'
});

This code is at the top of many files. Is it possible to somehow pass this connection to another file or keep it stored in a different file? It works as is, but I feel like it's terribly inefficient to create that many connections... Thanks!

[delvedor]

Hello!
You are right, it is inefficient, for avoid the issue, you should create the client in one file and share it with the rest of your application :)

// client.js
var elasticsearch = require('elasticsearch');

var client = new elasticsearch.Client({
    host: 'MY_HOST',
    log: 'LOG'
});

module.exports = client

// first.js
var client = require('./client.js')

// second.js
var client = require('./client.js')

[ev0065]

Awesome, thank you! It completely slipped my mind to use module.exports, even though I'm using it elsewhere in my application haha. I haven't implemented it yet, but I'm sure that it'll work so I'll go ahead and close this. Thanks again!