Contents

Chapter 1

API Versioning Toolkit

Three versioning strategies (URL path, header, query param) with deprecation headers and version registry. Zero dependencies.

Part of the API Launchpad toolkit by CodeVault.

Chapter 2

Features

  • Three strategies: URL path (/v1/users), header (X-API-Version: 2), query param (?version=2)
  • Version registry: track active, deprecated, and sunset versions
  • Deprecation headers: automatic Deprecation, Sunset, and X-Deprecation-Notice headers
  • Version middleware: extract version from request, reject unsupported versions
  • Versioned router: dispatch to version-specific handlers with handler reuse
  • Demo server with 3 API versions showing real migration patterns
  • Zero dependencies — runs on Python stdlib only
Chapter 3
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Api Versioning Toolkit v1.0.0 — Free Preview