Here some hints how to query elasticSearch from your web browser
First of all ElasticSearch has an excellent web site with a lot of documentation:
https://www.elastic.co/guide/en/elasticsearch/guide/current/index.html
To inspect your indexes following functions are very helpfull:
Queries
search (_search)
with "_search" you can search for specific index types. e.g. "workflow" index types:
http://172.17.2.91:9200/workflow/_search
display (?pretty)
with "?pretty" the content will be displaied in a structured way
http://172.17.2.91:9200/workflow/_search?pretty
amount of objects (&size)
if you wnat to see more than 10 objects ausgegeben use the option "size". "Size" defines the amount of ibjects to display e.g. 100
http://172.17.2.91:9200/workflow/_search?pretty&size=100
filter (&q=<feld>:<wert>)
IF you wnat to filter the objects you can use the function "&q=" e.g. filter attribute "status" for content "11":
http://172.17.2.91:9200/workflow/_search?pretty&size=100&q=status:11
If there are spaces in the filter expression use brackets:
http://172.17.2.91:9200/workflow/_search?pretty&size=100&q=status:(NOT DENIED)
boolean expression
You can use boolean expression to define a more complex query (use "\" to escape blanks in attribute names like "Object Name"):
nodes (_node/os?pretty)
If you want to see how many nodes and cpu's are used by ES
http://172.17.2.91:9200/_nodes/os?pretty
index statistics (/<index>/_stats?pretty)
if you need statistics about your index you can use this command like
acd30.skypro.ch:3191/elasticsearch/audit*/_stats?pretty
TTL
To test TTL, you should know that you cannot view the TTL field value. You need to explicitly ask for it with body request parameter fields. Look at this articel
https://makina-corpus.com/blog/metier/2015/elasticsearch-how-to-test-working-ttl-documents