Architecture Intermediate
API Versioning Strategies¶
API VersioningRESTAPI Design 3 min read
How to version REST APIs without breaking clients. URL, header, and query parameter versioning.
Approaches¶
# URL Path (most common)
GET /api/v1/users/123
GET /api/v2/users/123
# Header
GET /api/users/123
Accept: application/vnd.myapi.v2+json
# Query Parameter
GET /api/users/123?version=2
Breaking vs Non-breaking¶
Breaking: Removing a field, changing a type, adding a required parameter.
Non-breaking: Adding an optional field, a new endpoint, a new optional parameter.
Summary¶
Version from the start. Prefer additive changes. Maintain the old version during a transition period.
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