API Development (REST/GraphQL)
An API is a product whose users are developers — it deserves the same design care as any interface.
I build REST and GraphQL APIs with predictable resource design, authentication done properly (OAuth 2, JWT, API keys with rotation), rate limiting, pagination, versioning that won’t strand existing clients, and documentation generated from the spec so it never drifts from reality. Stacks are Node.js and PHP, with OpenAPI as the contract. Whether it powers your own frontend and mobile app or is sold to paying partners, you get an API other developers can integrate without emailing you questions.
What's Included:
Payment Security
Why Choose My API Development (REST/GraphQL) Services?
I deliver exceptional results with a focus on quality, performance, and client satisfaction.
Rock-Solid Reliability
APIs built with proper error handling, input validation, and rate limiting so your application stays stable even under heavy load.
Clear Documentation
Every endpoint is documented with request/response examples, making it easy for your team or third-party developers to integrate without guesswork.
Secure by Default
JWT authentication, role-based access control, and input sanitization are built in from the start — not bolted on as an afterthought.
Future-Proof Design
Clean, versioned API architecture that supports new features and integrations without breaking existing clients or requiring painful migrations.
Steps for completing your project
After purchasing the project, send requirements so I can start the project.
Delivery time starts when I receive requirements from you.
I work on your project following the steps below.
Revisions may occur after the delivery date.
API Design & Specification
I define endpoints, data models, and authentication strategy based on your application requirements. You receive a detailed API specification before any code is written.
Database & Data Layer
I design the database schema and set up ORM models, ensuring the data layer supports all required queries efficiently with proper indexing.
Endpoint Implementation
I build each endpoint with input validation, error handling, and business logic, following REST or GraphQL best practices depending on your chosen architecture.
Authentication & Security
I implement JWT-based authentication, role-based permissions, rate limiting, and CORS configuration to ensure your API is secure and production-ready.
Testing & Documentation
I write automated tests for all endpoints, generate interactive API documentation, and deploy to your staging environment for integration testing.
Review the work, release payment, and leave feedback.
What if I'm not happy with the work?Frequently Asked Questions
Common questions about this service
REST is simpler and ideal for straightforward CRUD applications with well-defined resources. GraphQL is better when you have complex, interconnected data or need to minimize network requests for mobile apps.
Yes, I regularly build APIs for existing applications that need to expose data to mobile apps, third-party integrations, or new frontend frameworks. I work with your existing database and business logic.
For REST APIs, I use URL-based versioning (e.g., /api/v1/) so existing integrations continue working when new versions are released. GraphQL naturally handles evolution through schema deprecation.
Yes, every API I build includes comprehensive documentation with Swagger/OpenAPI for REST or GraphQL Playground for GraphQL. Documentation includes example requests, response schemas, and authentication guides.
Yes — it's common with older systems that suddenly need to feed a mobile app or a partner. I build the API as a layer over the existing database and business logic, without rewriting the application: read endpoints first (low risk, immediate value), then carefully validated write operations. Where the legacy code is too tangled to call safely, the API talks to the database directly with its own validation layer.
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Ready to Get Started?
Let's discuss your project requirements and create something amazing together.
