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English
$
USD
I will custom api and integration
About this Gig
I will develop custom API and API integration for your web or mobile application using Node.js, NestJS, and modern technologies.
Are you looking for custom API development, REST API integration, or third-party API integration? I can build secure, scalable, and high-performance APIs and connect your frontend and backend systems seamlessly.
I am a full stack developer specializing in API development, backend systems, and third-party integrations.
Services:
Custom API development
REST API development and integration
Third-party API integration (Stripe, PayPal, SaaS APIs)
Payment gateway integration and webhook setup
API debugging, fixing, and optimization
Frontend to backend API integration
Authentication and authorization (JWT, OAuth)
Database integration and query optimization
Microservices API development
API Integration Types:
Payment API integration
External API and SaaS integration
Webhook integration and automation
Database and system integration
Cloud and server integration
Tech Stack:
Node.js, NestJS
React, Vue, Next.js
MongoDB, MySQL, PostgreSQL
REST API, Webhooks, JSON
Why choose this gig:
Expert in custom API and API integration and will provide clean code.
My Portfolio
FAQ
What do you need to start the API development project?
I need your project requirements, API documentation (if available), preferred technology stack, database details, and any third-party service credentials required for integration.
Can you fix existing API bugs or integration issues?
Yes, I can debug and fix broken APIs, webhook issues, authentication errors, slow API responses, payment integration problems, and backend logic issues.
Do you develop APIs using Node.js and NestJS?
Yes, I specialize in Node.js, NestJS, Express.js, REST APIs, authentication systems, and scalable backend architecture.
Will you provide API documentation?
Yes, I can provide clean API documentation using Postman collection or Swagger/OpenAPI based on your package or request.
Can you work with my existing project or source code?
Yes, I can work on existing Node.js, NestJS, Express.js, or custom frontend and backend projects and improve or extend your APIs.
