feat: implement get_provider_metadata for requirement 1.1.5 (#140)

Signed-off-by: Federico Bond <federicobond@gmail.com>

open_feature/open_feature_api.py

@@ -2,6 +2,7 @@
 
 from open_feature.exception.exceptions import GeneralError
 from open_feature.open_feature_client import OpenFeatureClient
+from open_feature.provider.metadata import Metadata
 from open_feature.provider.no_op_provider import NoOpProvider
 from open_feature.provider.provider import AbstractProvider
 
@@ -24,3 +25,8 @@ def set_provider(provider: AbstractProvider):
 def get_provider() -> typing.Optional[AbstractProvider]:
     global _provider
     return _provider
+
+
+def get_provider_metadata() -> typing.Optional[Metadata]:
+    global _provider
+    return _provider.get_metadata()

tests/test_open_feature_api.py

@@ -2,7 +2,13 @@
 
 from open_feature.exception.error_code import ErrorCode
 from open_feature.exception.exceptions import GeneralError
-from open_feature.open_feature_api import get_client, get_provider, set_provider
+from open_feature.open_feature_api import (
+    get_client,
+    get_provider,
+    set_provider,
+    get_provider_metadata,
+)
+from open_feature.provider.metadata import Metadata
 from open_feature.provider.no_op_provider import NoOpProvider
 
 
@@ -52,3 +58,15 @@ def test_should_return_a_provider_if_setup_correctly():
     # Then
     assert provider
     assert isinstance(provider, NoOpProvider)
+
+
+def test_should_retrieve_metadata_for_configured_provider():
+    # Given
+    set_provider(NoOpProvider())
+
+    # When
+    metadata = get_provider_metadata()
+
+    # Then
+    assert isinstance(metadata, Metadata)
+    assert metadata.name == "No-op Provider"