I will fix shopify API errors, graphql, rest API, webhook and integration bugs

J
john_hellen981
J
john_hellen981
John H
fix shopify API errors, graphql, rest API, webhook and integration bugs
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fix shopify API errors, graphql, rest API, webhook and integration bugs

About this gig

Having issues with your Shopify API, GraphQL, REST API, webhooks, metafields, authentication, or third party integration?


I will diagnose and fix your Shopify API issues and get your integration working correctly. I can troubleshoot API errors, deprecated endpoints, failed queries/mutations, webhook problems, authentication issues, metafield errors, rate limits, and REST to GraphQL migration problems.


What I can help with:

  • Shopify REST & GraphQL API errors
  • API version/deprecation issues
  • Webhook failures
  • OAuth/authentication problems
  • Metafield API issues
  • Failed queries & mutations
  • Third-party API integrations
  • REST GraphQL migration
  • Rate-limit/API request issues
  • Custom Shopify app debugging


I'll first identify the root cause, explain what needs fixing, then implement and test the solution.


Message me with your error or project details and let's get your Shopify integration working properly.

  • Platform

    • Shopify

  • Website type

    • E-Commerce store
    • Business
    • Landing page
    • Blog
    • Portfolio

  • Programming language

    • C#
    • Delphi (Object Pascal)
    • JavaScript
    • Kotlin
    • Perl
    • PHP
    • Python
    • TypeScript
    • HTML & CSS
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Get to know John H

John H

Helping Amazon Sellers Automate and Scale with SP API

  • FromUnited Kingdom
  • Member sinceJun 2026
  • Avg. response time1 hour

  • Languages

    English
Helping Amazon sellers automate operations and scale efficiently with Amazon SP-API solutions. If you're facing inventory sync issues, manual order processing, listing management challenges, or multi channel selling complexities, I can help. I build custom integrations for Amazon, Shopify, eBay, Etsy, and Walmart, including real-time inventory sync, order automation, Google Sheets dashboards, ERP integrations, and custom reporting systems that save time, reduce errors, and improve business performance. Message me now to get started!

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