kibana/docs/developer/core/development-elasticsearch.asciidoc

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[[development-elasticsearch]]
=== Communicating with Elasticsearch
Kibana exposes two clients on the server and browser for communicating with elasticsearch.
There is an 'admin' client which is used for managing Kibana's state, and a 'data' client for all
other requests. The clients use the {jsclient-current}/index.html[elasticsearch.js library].
[float]
[[client-server]]
=== Server clients
Server clients are exposed through the elasticsearch plugin.
[source,javascript]
----
const adminCluster = server.plugins.elasticsearch.getCluster('admin');
const dataCluster = server.plugins.elasticsearch.getCluster('data');
//ping as the configured elasticsearch.user in kibana.yml
adminCluster.callWithInternalUser('ping');
//ping as the user specified in the current requests header
adminCluster.callWithRequest(req, 'ping');
----
[float]
[[client-browser]]
=== Browser clients
Browser clients are exposed through AngularJS services.
[source,javascript]
----
uiModules.get('kibana')
.run(function (es) {
es.ping()
.catch(err => {
console.log('error pinging servers');
});
});
----