Actuator /metrics endpoint does not include http.server.requests

Question

According to the documentation of the spring boot actuator

Auto-configuration enables the instrumentation of requests handled by Spring MVC. When management.metrics.web.server.auto-time-requests is true, this instrumentation occurs for all requests. Alternatively, when set to false, you can enable instrumentation by adding @Timed

And
By default, metrics are generated with the name, http.server.requests

When I access the /metrics endpoint I am getting

{
  "mem": 405105,
  "mem.free": 150352,
  "processors": 8,
  "instance.uptime": 440055,
  "uptime": 455888,
  "systemload.average": 1.904296875,
  "heap.committed": 315392,
  "heap.init": 262144,
  "heap.used": 164015,
  "heap": 4194304,
  "nonheap.committed": 92800,
  "nonheap.init": 4992,
  "nonheap.used": 89714,
  "nonheap": 0,
  "threads.peak": 64,
  "threads.daemon": 43,
  "threads.totalStarted": 95,
  "threads": 46,
  "classes": 12459,
  "classes.loaded": 12459,
  "classes.unloaded": 0,
  "gc.g1_young_generation.count": 12,
  "gc.g1_young_generation.time": 127,
  "gc.g1_old_generation.count": 0,
  "gc.g1_old_generation.time": 0,
  "httpsessions.max": -1,
  "httpsessions.active": 0,
  "datasource.primary.active": 0,
  "datasource.primary.usage": 0.0,
  "gauge.response.example.users": 2.0,
  "counter.status.200.example.users": 5
}

So the http.server.requests is not there. The counter.status.200.example kind of shows the requests that go through my application but they are separated per endpoint. I need an overall for the whole application. I've tried disabling the management.metrics.web.server.auto-time-requests and adding @Timed to the endpoints, but that did not work as well. The result was the same as the one above.

Does anyone know how I can show the overall requests that are made to the application? Thank you in advance.

*EDIT

when I add compile('io.micrometer:micrometer-registry-prometheus:latest.release') I get the following error

Parameter 0 of method prometheusEndpointFix in PrometheusEndpointConfiguration required a bean of type 'PrometheusEndpoint' that could not be found.

Even though the @Bean is there..

@Configuration
class PrometheusEndpointConfiguration {

  @Bean
  public PrometheusEndpoint prometheusEndpoint() {
    return new PrometheusEndpoint(CollectorRegistry.defaultRegistry);
  }
...
}

Answer 1

One catch with it is when using the actuators and following the guide of spring boot 2.2.6 I noticed the http.server.requests will not be shown in the metrics list, if no requests have happen so far. After making the first REST request, the http metric becomes available.