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Fiverr Pro
English
$
USD
I will fix API integration, rest API, webhook and cors errors
Nodejs Backend Developer, REST API and API Integration
Need a reliable developer to build your backend or connect your applications?
I specialize in API integration, REST API development, custom API development, and third-party API integration for websi...
About this Gig
Having API errors, failed requests, broken webhooks, CORS problems, or REST API integration issues?
I will troubleshoot and fix your API integration, REST API, webhook, CORS, authentication, and backend errors so your application can communicate properly with your services.
I can help with:
- REST API errors and failed requests
- API integration problems
- Webhook errors and failed events
- CORS errors
- Authentication and authorization issues
- JSON/request/response problems
- Third-party API integration issues
- Node.js and Express API bugs
- API connection and backend errors
- API debugging and testing
What you get:
- Proper troubleshooting and error diagnosis
- Clean and reliable fixes
- API and webhook testing
- Clear communication throughout the process
- Tested functionality before delivery
I work with Node.js, Express.js, REST APIs, JavaScript, webhooks, Stripe, MongoDB, MySQL, PostgreSQL, JWT, and third-party API integrations.
Please message me before ordering and share the API documentation, error message, relevant code, and a brief explanation of the issue. This helps me understand the problem and recommend the right package.
Device:
Desktop
•
Laptop
•
Mobile
•
Tablet
Operating system:
Windows
•
Linux
•
IOS
•
Android
My Portfolio
FAQ
Can you fix any API integration error?
Yes. I can troubleshoot REST API, webhook, CORS, authentication, request/response, and third-party API integration issues.
Can you fix an existing Node.js API?
Yes. I can debug and fix existing Node.js, Express.js, REST API, and backend integration issues.
Can you fix webhook problems?
Yes. I can troubleshoot webhook configuration, failed events, incorrect responses, authentication, and webhook integration issues.
What do you need before starting?
Please provide the error details, relevant code, API documentation, access or test credentials if required, and a brief explanation of the problem.
Can you fix CORS and authentication errors?
Yes. I can troubleshoot CORS, API authentication, authorization, JWT, headers, and related API connection problems.
Can you work with third-party APIs?
Yes. I can integrate and troubleshoot third-party APIs such as payment, communication, SaaS, and other REST-based services.
Should I contact you before ordering?
Yes. Please message me first if the issue is complex or you're unsure which package you need. I'll review the problem and recommend the appropriate option.
