I will fix API bugs and rest API integrations


About this gig
Are your users facing CORS errors, broken data fetches, or failed webhooks?
When an API breaks, your entire platform stops working. Users can't log in, payments fail, and data gets lost. You don't have time to wait; you need an expert to dive into the backend and fix the exact root cause immediately.
With deep expertise in backend architecture and full-stack development, I specialize in emergency troubleshooting for REST and GraphQL APIs.
What I will troubleshoot and fix:
- API bugs and broken endpoints
- CORS policy and Authentication/Authorization errors
- 3rd-party API integration failures (Stripe, Twilio, CRMs)
- Webhook misconfigurations and data synchronization delays
- JSON data parsing and frontend-backend connectivity issues
Why choose my service?
- Instant response and emergency troubleshooting
- Secure code (No data loss or security breaches)
- I test the API after fixing to ensure 100% stability
Stop losing users over broken data. Message me right now with your API issue, and let's get your platform running perfectly again!
Get to know Abid Shamshad
Full Stack App Developer
- FromPakistan
- Member sinceApr 2019
- Avg. response time1 hour
- Last delivery2 years
Languages
English
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FAQ
What do you need to start fixing my API bugs?
I will need access to your source code (GitHub/GitLab), server/hosting access if the issue is live, and any API documentation or Postman collections you have.
Can you fix a broken 3rd-party API integration?
Yes! I specialize in troubleshooting and fixing broken 3rd-party REST API integrations, including payment gateways (Stripe, PayPal), CRMs, and email services.
Do you fix backend errors in Node.js or Laravel?
Absolutely. As a full-stack developer, I don't just patch the frontend; I trace the API errors back to the server and fix the core Node.js, Express, or Laravel backend issues causing the crash.
