← ClaudeAtlas

api-versioning-strategylisted

Implements API versioning using URL paths, headers, or query parameters with backward compatibility and deprecation strategies. Use when managing multiple API versions, planning breaking changes, or designing migration paths.
secondsky/claude-skills · ★ 159 · API & Backend · score 85
Install: claude install-skill secondsky/claude-skills
# API Versioning Strategy Choose and implement API versioning approaches with proper deprecation timelines. ## Versioning Methods | Method | Example | Pros | Cons | |--------|---------|------|------| | URL Path | `/api/v1/users` | Clear, cache-friendly | URL clutter | | Header | `API-Version: 1` | Clean URLs | Hidden, harder to test | | Query | `?version=1` | Easy to use | Not RESTful | ## URL Path Versioning (Recommended) ```javascript const v1Router = require('./routes/v1'); const v2Router = require('./routes/v2'); app.use('/api/v1', v1Router); app.use('/api/v2', v2Router); ``` ## Version Adapter Pattern ```javascript // Transform between versions const v1ToV2 = (v1Response) => ({ data: { type: 'user', id: v1Response.user_id, attributes: { name: v1Response.user_name, email: v1Response.email } } }); ``` ## Deprecation Headers ```javascript app.use('/api/v1', (req, res, next) => { res.setHeader('Deprecation', 'true'); res.setHeader('Sunset', 'Sat, 01 Jun 2025 00:00:00 GMT'); res.setHeader('Link', '</api/v2>; rel="successor-version"'); next(); }); ``` ## Safe vs Breaking Changes **Safe Changes** (no version bump): - Adding optional fields - Adding new endpoints - Adding optional parameters **Breaking Changes** (requires new version): - Removing fields - Changing field types - Restructuring responses - Removing endpoints ## Deprecation Timeline | Phase | Duration | Actions | |-------|----------|---------| | Deprecated | 3 m