I will fix mern stack API integration errors and 500 response bugs


About this gig
Your MERN app is built, but APIs aren't connecting, requests fail silently, or 500 errors crash your backend. These issues kill user trust and delay launches.
I specialize in diagnosing and fixing API integration errors, server response failures, and backend logic bugs in MERN stack applications, fast and permanently.
What I Will Do:
- Identify root causes of 500 Internal Server Errors and API failures
- Fix broken REST API endpoints and request/response mismatches
- Resolve CORS, authentication, and middleware configuration issues
- Debug MongoDB connection errors and query failures
- Correct React-Node communication problems (Axios, Fetch)
- Provide clear documentation of the error and how it was resolved
Why This Gig Works:
I've debugged hundreds of MERN applications where APIs fail due to misconfigured routes, unhandled promises, or improper error handling. I fix the underlying issue so it doesn't return, working code, not temporary workarounds.
What I Need From You:
- Codebase access (GitHub, zip file, or staging environment)
- Error description (screenshots, console logs, network tab data)
Ready to deploy without errors? Contact me before ordering to confirm scope and delivery time.
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Get to know Samama Inam
MERN Stack and WordPress Developer
- FromPakistan
- Member sinceJun 2019
- Last delivery3 years
Languages
English
My Portfolio
FAQ
What information do you need to start?
I need access to your code, error logs, and a description of when the issue occurs. The more details you provide, the faster I can diagnose and fix it.
Do you work with third-party APIs like Stripe or Firebase?
Yes. I handle integrations with payment gateways, authentication services, cloud storage, and other external APIs commonly used in MERN apps.
What if the bug is more complex than expected?
I'll notify you immediately if the issue requires a higher package tier or additional time. You'll never be charged extra without approval.
Can you prevent the error from happening again?
Absolutely. I identify why the error occurred and implement fixes that address the root cause, not just the symptom. I also provide guidance on avoiding similar issues.
Do you offer support after delivery?
Yes. Standard and Premium packages include post-delivery support. If something breaks related to my fix within the support window, I'll resolve it at no extra cost.
