I have a metric type data that I get every 10s from the EMS Server and one of the properties is: inbound message count. It's a total inbound message count for the EMS server. What I'd like to achieve is to create a metric that will show me how many messages came to EMS, so for example, at 12:00 Elastic gets inMessageCount=1000 and at 13:00 it gets inMessageCount=2000. How to create a metric that will count the difference (2000-1000)? That should be based on time range set in dashboard.
Thank you in advance!