Resource-Based URLs

Design URLs around resources, not actions. Use nouns for endpoints and HTTP methods to define operations. Keep URLs predictable and hierarchical.

HTTP Status Codes

Use appropriate HTTP status codes consistently. 200 for success, 201 for creation, 400 for client errors, and 500 for server errors. Be specific and meaningful.

Versioning Strategy

Plan for API evolution from day one. Use URL versioning, header versioning, or content negotiation. Maintain backward compatibility and clear deprecation policies.

Error Handling

Provide consistent error responses with clear messages, error codes, and helpful details. Include validation errors and suggestions for resolution.