---
source: apollo-router/src/plugins/telemetry/config_new/instruments.rs
description: "Custom histogram where supergraph response doesn't happen. This should still increment the metric on Drop."
expression: "&metrics.all()"
info:
  telemetry:
    instrumentation:
      instruments:
        default_requirement_level: none
        supergraph:
          custom.histogram:
            description: histogram of requests
            type: histogram
            unit: unit
            value: unit
---
- name: custom.histogram
  description: histogram of requests
  unit: unit
  data:
    datapoints:
      - sum: 1
        count: 1
        attributes: {}
