Elasticsearch and Angular 2

Question

I'm using Angular 2 with angular-cli and I installed the elasticsearch library with

nom install --save elasticsearch

There is an elasticsearch directory in node_modules.

I do the import with

import * as elasticsearch from 'elasticsearch';

As I understand this is a relative path that will resolve to the node_modules path and angular-cli (with ng serve) will take care of bundling everything properly.

However I get the following error:

ERROR in [default] /Users/xxx/yyy/src/app/shared/elasticsearch/es.service.ts:4:31 
Cannot find module 'elasticsearch'.

Any help would be appreciated.

I confirmed that the problem appears with an empty project generated with ng init.

Also, doing something like this:

var elasticsearch = require('elasticsearch');

works well.

@LauraAbadAvilés Is this an answer to my question or another question? — Cedric H.
– Cedric H., Commented Nov 22, 2016 at 12:02
It was a question, but I figure it out. client = new elasticsearch.Client({ host: 'localhost:9200', //log: 'trace' }); — Laura Abad Avilés
– Laura Abad Avilés, Commented Nov 23, 2016 at 8:06
@LauraAbadAvilés Yes indeed. What about my question and Angular2, how did you import the library? — Cedric H.
– Cedric H., Commented Nov 23, 2016 at 16:45
I imported same as you: ngOnInit(){ this.es = require('elasticsearch') } — Laura Abad Avilés
– Laura Abad Avilés, Commented Nov 24, 2016 at 11:11

Cobus Kruger · Accepted Answer · 2017-02-17 13:37:28Z

2

The simplest way to get this working, is to first install the type definitions:

npm install --save-dev @types/elasticsearch

And then, armed with your new shiny types, you can use import statements like this one:

import { Client } from 'elasticsearch';

... and use it like this:

let x = new Client({ /* Your parameters here */});

answered Feb 17, 2017 at 13:37

Cobus Kruger

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