How to Fix: Which status code should I use for failed validations or invalid duplicates?
API validation and duplicate errors
📋 Table of Contents
When building a REST-based API, it's essential to specify status codes for each request. The question of which status code to use for failed validations or invalid duplicates is often overlooked.
💡 Why You Are Getting This Error
- According to the HTTP specification, there is no specific status code for failed validations or invalid duplicates.
✅ Best Solutions to Fix It
Method 1: Using 422 (Unprocessable Entity)
- Step 1: Use a library or framework that supports validation and duplicate detection.
Method 2: Using 409 (Conflict)
- Step 1: Implement duplicate detection and validation in your database.
🎯 Final Words
For failed validations or invalid duplicates, consider using 422 (Unprocessable Entity) for validation errors and 409 (Conflict) for duplicate detection. Always refer to the HTTP specification for more information on status codes.
❓ Frequently Asked Questions
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