
JMaster
Mobile App
We design and build APIs that serve as the backbone of your digital products. Clean, well-documented, and performant endpoints that your frontend, mobile apps, and partners can rely on.
RESTful conventions, consistent naming, versioning, and comprehensive OpenAPI documentation make integration effortless.
Rate limiting, circuit breakers, retry logic, and graceful degradation keep your API available even when dependencies fail.
Auto-generated SDK clients, interactive Swagger UI, and example requests reduce integration time for your team and partners.
Estimated timelines and budget for building REST and GraphQL APIs
A REST API provides clean, versioned endpoints that your frontend, mobile apps, and partners consume. It includes authentication, validation, and interactive documentation.
Defining resources, endpoints, data models, and authentication strategy. Writing an OpenAPI spec before implementation.
Building endpoints with input validation, error handling, and database optimization. Contract-first development ensures spec compliance.
Automated tests for every endpoint: unit tests, integration tests, contract tests, and load testing with realistic traffic patterns.
CI/CD pipeline, staging and production environments, monitoring, and publishing interactive API documentation.
REST is simpler and ideal for CRUD-heavy apps. GraphQL excels when clients need flexible queries across related data. We often combine both in a single project.
We use URL path versioning (v1, v2) with deprecation policies. Breaking changes go into new versions while old versions remain supported during migration.
Yes. We can layer a modern API on top of any existing database, adding proper authentication, validation, and documentation without modifying your data.
We implement JWT authentication, input sanitization, rate limiting, CORS policies, request logging, and follow OWASP API Security guidelines.