---
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
attributes: {}