---
source: apollo-router/src/plugins/telemetry/config_new/instruments.rs
description: Field length
expression: "&metrics.all()"
info:
  telemetry:
    instrumentation:
      instruments:
        default_requirement_level: none
        graphql:
          list.length: true
---
- name: graphql.field.list.length
  description: Length of a selected field in the GraphQL response
  data:
    datapoints:
      - sum: 3
        count: 1
        attributes: {}
