TABLE OF CONTENTS
Introduction
This guide provides a structured approach to debugging and resolving common issues encountered in the Znode 10 Commerce Portal (CP) application and API. It is intended for developers, testers, and technical users responsible for building, testing, or maintaining React-based applications.
By following the steps outlined, users can systematically identify root causes and apply fixes to ensure a stable and efficient development experience.
This guide is divided into two main sections:
- Troubleshooting common issues and error history
- Debugging procedures for developers working on the Commerce Portal React application
React is a robust JavaScript library for building user interfaces. However, common issues—such as component rendering errors, state inconsistencies, broken API calls, hook misuse, and build failures—can affect application stability. This document provides practical strategies for resolving those problems effectively.
Troubleshooting and Debugging (Application Development)
For foundational setup, refer to the CP API - Setup Guide, Installation and Configuration for guidance on configuring the Commerce Portal application locally.
Client Issues History
| Issue Description | Root Cause Analysis | Type | Solution |
| 401 Unauthorized Error | Missing or expired authorization token in headers | Environment | Ensure a valid token is passed in the Authorization header. Refresh the token if it has expired. |
| CORS Policy Error | Cross-origin request blocked by browser security policy | Configuration | Ensure the server allows the client’s domain by setting the correct CORS headers. |
| 500 Internal Server Error | Backend exception due to null data or unhandled logic | Data | Investigate and resolve null references or unhandled conditions in the server code. |