I will fix API error, integrate rest apis, troubleshoot webhooks, authentication issues

N
nelson9576
N
nelson9576
Nelson
fix API error, integrate rest apis, troubleshoot webhooks, authentication issues
Full Screen
fix API error, integrate rest apis, troubleshoot webhooks, authentication issues
Full Screen
fix API error, integrate rest apis, troubleshoot webhooks, authentication issuesfix API error, integrate rest apis, troubleshoot webhooks, authentication issues

About this gig

Broken API connections, failed webhooks, authentication errors, and data that refuses to sync can interrupt your business operations and waste valuable time. I can help troubleshoot these issues, integrate REST APIs, and repair existing connections so your applications can communicate correctly.


Whether you need to connect a website to a third-party service, fix an API request, configure authentication, or automate data exchange, I will work toward a reliable solution based on your requirements and API documentation.


WHAT I OFFER:

  • REST API integration and configuration
  • API error troubleshooting and fixing
  • Webhook integration and error handling
  • API authentication and OAuth configuration
  • JSON request and response handling
  • Third-party application and website integration
  • Product, order, and inventory data synchronization
  • API endpoint testing and debugging
  • Data mapping and API workflow setup
  • Integration documentation and setup guidance


Let's get your API integration working correctly

Order now or message me for any question

  • Expertise

    • Performance
    • Security
    • Databases
    • Testing procedures

  • Programming language

    • JavaScript

  • Frontend framework

    • Bootstrap
    • jQuery
    • Next.js
    • React.js
    • Vue.js

  • Backend framework

    • Django
    • Express.js
    • FastAPI
    • Node.js
    • Firebase

Get to know Nelson

Nelson

Brings reality to life

  • FromUnited States
  • Member sinceOct 2026
  • Avg. response time1 hour

  • Languages

    English
I’m an Accomplished Web Design & E-commerce Specialist dedicated to building, optimizing, and managing high performing digital stores. I specialize in website design and redesign, Website migrations, product uploads and listings, store setup, bug fixing, performance optimization, and ongoing website management. I deliver polished, responsive, conversion focused solutions tailored to your brand and business objectives. Whether you’re launching, scaling, or upgrading your online presence, I bring precision, expertise, and attention to detail to every project. Message me for a free consultation.

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