API, Backend & Push Notification Integration

Connecting your app to REST or GraphQL APIs, Firebase or Supabase, real-time channels and push notifications — with errors, retries and versioning handled on purpose.

Many mobile bugs that reach users start at the network boundary: a field that quietly became nullable, a token that expired mid-request, a retry that charged a card twice. I treat the API layer as a first-class part of the app. For REST APIs I generate typed clients from an OpenAPI schema where one exists; for GraphQL I use schema-based codegen, so a breaking backend change fails the build instead of the app. Requests get timeouts, retries with backoff only where the operation is safe to repeat, and idempotency keys where it isn’t. Because old app versions stay installed for months, I also…