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I will fix issues and bugs in your rest API using node js
Navrivon
About this gig
Is your REST API returning errors or not working as expected?
Navrivon Systems can help debug and fix REST API, Node.js, Express.js, and backend issues.
We diagnose existing API problems, identify the underlying cause, and implement a clean fix without unnecessarily changing your existing application.
We can help with:
- REST API errors
- Node.js API bugs
- Express.js issues
- 404 and 500 errors
- Broken API endpoints
- Request/response problems
- Authentication issues
- MongoDB connection issues
- API validation errors
- Async/await issues
- Backend logic bugs
- API testing and debugging
Tech Stack: Node js, Express js, MongoDB, Mongoose, JavaScript, REST API, Postman
We recommend sending the error details, relevant code, API documentation, or Postman collection before ordering so we can understand the issue and select the appropriate package.
Small bug or complex backend issue? Contact us first and we'll review it.
Get to know Navrivon
Navrivon
Custom Software That Moves Your Business Forward
- FromPakistan
- Member sinceMay 2026
- Avg. response time1 hour
Languages
English
Navrivon Systems is a software development team specializing in full-stack development, REST APIs, API integration, and backend troubleshooting. We help businesses and startups build reliable systems, connect different applications, and fix issues in existing APIs and web applications. Our expertise includes Node.js, React.js, REST APIs, MongoDB, API integrations. We focus on clean code, clear communication, and delivering work that is ready for real-world use. Whether you need a new API, an application, api integration, or help fixing an existing API, we're here to build and solve it with you
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FAQ
What do you need to diagnose the API issue?
We need the error message, relevant code or project files, API documentation, and Postman collection if available. The more details you provide, the faster we can identify the problem.
Can you fix errors in an existing Node.js or Express.js API?
Yes. We can troubleshoot and fix REST API, Node.js, Express.js, MongoDB, authentication, validation, and backend logic issues while keeping unnecessary changes to your existing application to a minimum.
Can you fix 404, 500, authentication, or database errors?
Yes. We can diagnose common API errors including 404 and 500 responses, authentication failures, broken endpoints, MongoDB connection problems, request/response issues, and backend logic errors.
