feat: Add metadata to providers (#26)

* provider-metadata: Add metadata to providers
Signed-off-by: Andrew Helsby <ajhelsby@hotmail.com>

Signed-off-by: Andrew Helsby <ajhelsby@hotmail.com>

* feature/provider-metadata: Test extending metadata class
Signed-off-by: Andrew Helsby <ajhelsby@hotmail.com>

Signed-off-by: Andrew Helsby <ajhelsby@hotmail.com>

* feature/provider-metadata: Change no op metadata
Signed-off-by: Andrew Helsby <ajhelsby@hotmail.com>

Signed-off-by: Andrew Helsby <ajhelsby@hotmail.com>

Signed-off-by: Andrew Helsby <ajhelsby@hotmail.com>

open_feature/provider/metadata.py

@@ -0,0 +1,6 @@
+from dataclasses import dataclass
+
+
+@dataclass
+class Metadata:
+    name: str

open_feature/provider/no_op_metadata.py

@@ -0,0 +1,9 @@
+from dataclasses import dataclass
+
+from open_feature.provider.metadata import Metadata
+
+
+@dataclass
+class NoOpMetadata(Metadata):
+    name: str = "No-op Provider"
+    is_default_provider: bool = True

open_feature/provider/no_op_provider.py

@@ -3,14 +3,16 @@ from numbers import Number
 from open_feature.evaluation_context.evaluation_context import EvaluationContext
 from open_feature.flag_evaluation.flag_evaluation_details import FlagEvaluationDetails
 from open_feature.flag_evaluation.reason import Reason
+from open_feature.provider.metadata import Metadata
+from open_feature.provider.no_op_metadata import NoOpMetadata
 from open_feature.provider.provider import AbstractProvider
 
 PASSED_IN_DEFAULT = "Passed in default"
 
 
 class NoOpProvider(AbstractProvider):
-    def get_name(self) -> str:
-        return "No-op Provider"
+    def get_metadata(self) -> Metadata:
+        return NoOpMetadata()
 
     def get_boolean_details(
         self,

open_feature/provider/provider.py

@@ -2,11 +2,12 @@ from abc import abstractmethod
 from numbers import Number
 
 from open_feature.evaluation_context.evaluation_context import EvaluationContext
+from open_feature.provider.metadata import Metadata
 
 
 class AbstractProvider:
     @abstractmethod
-    def get_name(self) -> str:
+    def get_metadata(self) -> Metadata:
         pass
 
     @abstractmethod

tests/provider/test_no_op_provider.py

@@ -10,6 +10,16 @@ def setup():
     assert isinstance(provider, NoOpProvider)
 
 
+def test_should_return_no_op_provider_metadata(no_op_provider_client):
+    # Given
+    # When
+    metadata = NoOpProvider().get_metadata()
+    # Then
+    assert metadata is not None
+    assert metadata.name == "No-op Provider"
+    assert metadata.is_default_provider
+
+
 def test_should_get_boolean_flag_from_no_op(no_op_provider_client):
     # Given
     # When