8000 docs: enhance Products API documentation with query parameters, validation rules, error handling, and pagination guidance by derrickscottux-collab · Pull Request #109 · Ovi/DummyJSON · GitHub
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docs: enhance Products API documentation with query parameters, validation rules, error handling, and pagination guidance #109

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docs: enhance Products API documentation with query parameters, validation rules, error handling, and pagination guidance #109

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@derrickscottux-collab derrickscottux-collab commented Nov 23, 2025

Summary

Enhanced the Products API documentation to provide clearer guidance for developers using the endpoint. Added detailed information about query parameters, validation rules, error handling, and pagination that were previously undocumented or unclear.

Changes Made

Query Parameters Section

  • Added detailed explanations for limit, skip, select, sortBy, and order parameters
  • Documented validation rules (e.g., limit=0 returns all products)
  • Clarified that select does not support nested field selection
  • Listed all sortable fields for sortBy parameter

Search Endpoint

  • Documented case-insensitive and partial matching behavior
  • Explained how the total field reflects search results, not total product count
  • Added note about special character support

Error Handling

  • Documented 404 error response format for invalid product IDs
  • Explained behavior when using invalid category names (returns empty array instead of 404)
  • Added warning about invalid sortBy field names returning unsorted results

Pagination

  • Added guidance on implementing pagination with hasMore formula
  • Included best practices for calculating total pages and current page
  • Added warning about limit=0 edge case

Additional Improvements

  • Added descriptive text to multiple endpoints for better context
  • Included tips and warnings for edge cases discovered through testing
  • Improved consistency in documentation structure

Testing

All documented behaviors were verified using Postman with multiple test cases including:

  • Pagination with various limit and skip values
  • Field selection with valid and invalid field names
  • Search queries with special characters and case variations
  • Sorting by different fields and orders
  • Error conditions (invalid IDs, category names, etc.)

Motivation

The existing documentation was functional but lacked details about parameter behavior, validation rules, and error handling. This made it difficult for developers to understand edge cases and implement features like pagination correctly. These enhancements provide the clarity needed for production use.

@derrickscottux-collab
Update docs: enhance Products API documentation with query parameters…
2581e50 
…, validation rules, error handling, and pagination guidance

   - Added detailed query parameter documentation
   - Documented validation rules and edge cases
   - Added error handling examples
   - Included pagination implementation guide
   - Clarified search behavior
   - Added warnings for common pitfalls
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