v1 metrics

• The key is the name of a valid MBean.

• The value is a URI to use when requesting that MBean's attributes.

The query doesn't require any parameters, but the request body must contain a JSON object whose values are metric names, or a JSON array of metric names, or a JSON string containing a single metric's name.

For a list of metric names, make a GET request to /metrics/v1/mbeans.

The response format, though always JSON, depends on the request format:

• Requests with a JSON object return a JSON object where the values of the original object are transformed into the Mbeans' attributes for the metric names.

• Requests with a JSON array return a JSON array where the items of the original array are transformed into the Mbeans' attributes for the metric names.

• Requests with a JSON string return a JSON object of the Mbean's attributes for the given metric name.

The query doesn't require any parameters, but the endpoint itself must correspond to one of the metrics returned by a GET request to /metrics/v1/mbeans.

The endpoint's responses contain a JSON object mapping strings to values. The keys and values returned in the response vary based on the specified metric.

Use curl from localhost to request data on MBean memory usage:

curl 'http://localhost:8080/metrics/v1/mbeans/java.lang:type=Memory'

The response should contain a JSON object representing the data:

{
  "ObjectPendingFinalizationCount" : 0,
  "HeapMemoryUsage" : {
    "committed" : 807403520,
    "init" : 268435456,
    "max" : 3817865216,
    "used" : 129257096
  },
  "NonHeapMemoryUsage" : {
    "committed" : 85590016,
    "init" : 24576000,
    "max" : 184549376,
    "used" : 85364904
  },
  "Verbose" : false,
  "ObjectName" : "java.lang:type=Memory"
}