Merge pull request #2343 from deepikagandla7456/2318

Implement Distributed Tracing Correlation Across Full Request Lifecycle with Trace-Based Testing

Author: AseemPrasad

api/versioning/__init__.py

@@ -0,0 +1,84 @@
+"""
+API Versioning Module
+
+Provides comprehensive API versioning with:
+- Version registry with status tracking
+- Schema transformers for backward compatibility
+- Deprecation middleware with RFC 8594 headers
+- Versioned routing
+
+Reference: Issue #2316 - API Versioning Strategy
+"""
+
+from api.versioning.registry import (
+    VersionRegistry,
+    VersionInfo,
+    VersionStatus,
+    UsageStats,
+    get_version_registry,
+    register_custom_version,
+    deprecate_api_version,
+)
+
+from api.versioning.transformers import (
+    SchemaTransformer,
+    EnumTransformer,
+    TransformationType,
+    FieldTransformation,
+    get_schema_transformer,
+    get_enum_transformer,
+    transform_request_for_version,
+    transform_response_for_version,
+)
+
+from api.versioning.deprecation import (
+    DeprecationMiddleware,
+    DeprecationWarning,
+    create_deprecation_response,
+    create_version_mismatch_response,
+    get_deprecation_warnings_for_response,
+)
+
+from api.versioning.router import (
+    VersionedRouter,
+    VersionResolver,
+    VersionedRoute,
+    get_requested_version,
+    require_version,
+    generate_versioned_openapi,
+    check_breaking_changes,
+)
+
+__all__ = [
+    # Registry
+    "VersionRegistry",
+    "VersionInfo",
+    "VersionStatus",
+    "UsageStats",
+    "get_version_registry",
+    "register_custom_version",
+    "deprecate_api_version",
+    # Transformers
+    "SchemaTransformer",
+    "EnumTransformer",
+    "TransformationType",
+    "FieldTransformation",
+    "get_schema_transformer",
+    "get_enum_transformer",
+    "transform_request_for_version",
+    "transform_response_for_version",
+    # Deprecation
+    "DeprecationMiddleware",
+    "DeprecationWarning",
+    "create_deprecation_response",
+    "create_version_mismatch_response",
+    "get_deprecation_warnings_for_response",
+    # Router
+    "VersionedRouter",
+    "VersionResolver",
+    "VersionedRoute",
+    "get_requested_version",
+    "require_version",
+    "generate_versioned_openapi",
+    "check_breaking_changes",
+]