page size must be nonnegative.

Cloud Firestore (Firebase) REST API · GET /v1/projects/{project}/databases/{database}/documents/{collection} · HTTP 400 INVALID_ARGUMENT

Status: ✅ verified:server:prod · first seen 2026-10-24 · last confirmed 2026-10-27 · 73 confirmations from 2 vantages

A negative pageSize returns HTTP 400 "Page size must be nonnegative.".

What to do

1. Omit query parameter pageSize.

Dimensions

env: prod · plan: any · region: any · account_state: service_account

Evidence

Probe af:google-firestore:probe:list-parameter-errors (declarative, source)

Observations: none from reporters yet.

Machine access

curl -s https://apifacts.dev/v0/check \
  -H 'content-type: application/json' \
  -d '{"target":{"method":"GET","url":"https://firestore.googleapis.com/v1/projects/{project}/databases/{database}/documents/{collection}"},"error":{"status":400,"body_excerpt":"page size must be nonnegative."}}'

YAML: facts/google-firestore/negative-page-size-400.yaml

Data: CC BY 4.0 · apifacts registry · This page is generated; edit the YAML, not the page.