Building REST APIs with PHP

A REST API allows authorised software to exchange information and request actions over HTTP. Modern PHP frameworks provide routing, validation, authentication and response tools suited to APIs serving mobile apps, browser interfaces and external partners.

Design around understandable resources

Endpoints should represent business concepts such as appointments, orders or customers rather than expose database tables. Consistent names, status codes and error formats reduce assumptions in every consuming application.

Validate and authorise every request

Check data type, format and business rules on the server. Authentication identifies the caller; policies decide whether that caller can perform the action on the specific record. Never rely on a hidden mobile button for security.

Choose credentials for each client

A first-party web session, mobile application and partner integration may need different token approaches. Credentials should have limited abilities, secure storage, expiry or revocation where appropriate. Privileged secrets must not be embedded in public JavaScript or app binaries.

Plan for API change

Mobile releases and partner systems may update slowly. Version breaking changes, document contracts and maintain compatibility during a transition. Automated tests should verify fields and behaviours clients rely upon.

Handle capacity and failure

Rate limits prevent abuse and accidental overload. Idempotency avoids duplicate payments or bookings when a request is retried. Logs, request identifiers and queue monitoring help teams trace work across systems.

Documentation is part of delivery

Explain authentication, endpoints, examples, validation errors and limits. Keep documentation aligned with deployed behaviour and provide safe test credentials where external teams need to integrate.

Explore our REST API approach and Laravel API guide, or discuss an integration with our web team.