M04 Q29 How do you access an endpoint using a tag?

You access an endpoint using a tag by defining it as part of the request in following way:

tag=KEY:VALUE

For example:

/actuator/metrics/http.server.requests?tag=status:200
/actuator/metrics/jvm.memory.max?tag=area:heap

You can also use multiple tags in one query with usage of & in following way:

tag=KEY1:VALUE1&tag=KEY2:VALUE2

For example:

/actuator/metrics/http.server.requests?tag=status:200&tag=method:GET
/actuator/metrics/jvm.memory.max?tag=area:heap&tag=id:G1%20Old%20Gen

Tag is used to filter results of query by one or multiple dimensions. It is often used with metrics endpoint for data filtering.