I will build and integrate secure apis for web and mobile applications

Starter API Setup

Ideal for small projects: a secure REST API with essential endpoints, clean code, DB, and basic auth

Delivery Time
2 Days
Package Includes: see all
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Service details

I will design, develop, and integrate secure, scalable, and high-performance APIs for your web or mobile application, tailored to your specific business requirements. Whether you are building a new product from scratch or enhancing an existing system, I ensure seamless communication between applications, services, and databases.

If you need a custom REST API, third-party API integration, or optimization of your current backend, I will handle the complete process—from planning and development to testing and documentation. My goal is to create APIs that are easy to use, reliable under load, and built with security best practices in mind.

What you’ll get:

  • Custom REST API development based on your requirements
  • Third-party API integration (payment gateways, authentication services, maps, email, analytics, etc.)
  • Secure authentication and authorization using JWT, OAuth, and API keys
  • Database integration with proper schema design and data validation
  • Robust error handling and input validation to prevent failures and vulnerabilities
  • Well-structured, clean, and fully documented API endpoints
  • API testing, performance optimization, and basic deployment support

I focus on writing clean, maintainable code, following industry standards to ensure long-term scalability and ease of future enhancements. Security, performance, and reliability are always top priorities. By the end of the project, you’ll have a professionally built API that integrates smoothly with your application and supports future growth with confidence.

Key details

  • Programming Language
    JavaScript
  • Frontend Framework
    BootstrapAngularjsVue.jsReact.js
  • Backend Framework
    Node.jsExpress.js
Special note from freelancer
I deliver high-quality, secure, and scalable APIs with clean code and clear documentation, focusing on performance, security best practices, and fast delivery to ensure reliable, maintainable, and future-ready applications.
FAQs
What do you need from me to get started?

I will need a brief description of your project, required features, preferred tech stack (if any), and access to existing code or APIs if applicable.

Do you provide secure authentication?

Yes. I implement secure authentication methods such as JWT, API keys, or OAuth depending on your application needs.

Will I receive the full source code?

Absolutely. You will receive complete, clean, and well-documented source code upon delivery.

Can you integrate third-party APIs?

Yes. I can integrate payment gateways, authentication services, maps, email services, and other third-party APIs.

Do you offer support after delivery?

Yes. I provide basic post-delivery support and can assist with updates or fixes if required.

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