Send FCM push notifications via the HTTP v1 API

domain: firebase.google.com · 4 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗

Steps

  1. Legacy server-key API is dead (June 2024) — use HTTP v1 with OAuth service account
  2. POST /v1/projects/{id}/messages:send with message {token, notification, data}
  3. Mint access tokens from the service account (google-auth library handles caching)
  4. Handle UNREGISTERED responses by deleting the stale device token

Known gotchas

Related routes

Send targeted push notifications to users via OneSignal REST API
onesignal · 5 steps · unrated

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