Getting nodes information via API

The previous recipes allow the return of information to the cluster level; ElasticSearch provides calls to gather information to the node level.

Getting ready

You need a working ElasticSearch cluster.

How to do it…

For getting nodes information, we will perform the steps given as follows:

1. To retrieve the node information, the HTTP method is GET and the curl command is as follows:

   curl -XGET 'http://localhost:9200/_nodes?all=true'
   curl -XGET 'http://localhost:9200/_nodes/<nodeId1>,<nodeId2>?all=true'

2. The result will be as follows:

   {
       "cluster_name": "elasticsearch",
       "nodes": {
   "pyGyXwh1ScqmnDw5etNS0w": {
               "hostname": "andrea",
               "http": {
                   "bound_address": "inet[/0:0:0:0:0:0:0:0%0:9200]",
                   "max_content_length": "100mb",
                   "max_content_length_in_bytes...