How to use basic Elasticsearch operations ?

http://<IP>:<port>/<index-name>/_mapping
http://10.170.208.53:9200/index-2016.02.26/_mapping
Gives the description of fields in the message event, their data types and how they are configured.

http://<IP>:<port>/_template/<template_name>
http://10.170.208.53:9200/_template/temp
Gives the description of template specified.

http://<IP>:<port>/_cat/indices
http://10.170.208.53:9200/_cat/indices
Gives the list of indices currently present in elasticsearch.

http://<IP>:<port>/<index-name>/_search
http://10.170.208.53:9200/index-2016.02.29/_search
Gives the data present under specified index.