fix: Move flag evaluation details to a dataclass

open_feature/flag_evaluation/flag_evaluation_details.py

@@ -1,18 +1,15 @@
+import typing
+from dataclasses import dataclass
+
 from open_feature.flag_evaluation.error_code import ErrorCode
 from open_feature.flag_evaluation.reason import Reason
 
 
+@dataclass
 class FlagEvaluationDetails:
-    def __init__(
-        self,
-        key: str,
-        value,
-        reason: Reason,
-        error_code: ErrorCode = None,
-        variant=None,
-    ):
-        self.key = key
-        self.value = value
-        self.reason = reason
-        self.error_code = error_code
-        self.variant = variant
+    flag_key: str
+    value: typing.Any
+    variant: str = None
+    reason: Reason = None
+    error_code: ErrorCode = None
+    error_message: str = None

open_feature/open_feature_client.py

@@ -4,6 +4,7 @@
 
 from open_feature.evaluation_context.evaluation_context import EvaluationContext
 from open_feature.exception.exceptions import GeneralError
+from open_feature.flag_evaluation.error_code import ErrorCode
 from open_feature.flag_evaluation.flag_evaluation_details import FlagEvaluationDetails
 from open_feature.flag_evaluation.flag_type import FlagType
 from open_feature.flag_evaluation.reason import Reason
@@ -40,119 +41,119 @@ def add_hooks(self, hooks: typing.List[Hook]):
 
     def get_boolean_value(
         self,
-        key: str,
+        flag_key: str,
         default_value: bool,
         evaluation_context: EvaluationContext = None,
         flag_evaluation_options: typing.Any = None,
     ) -> bool:
         return self.evaluate_flag_details(
             FlagType.BOOLEAN,
-            key,
+            flag_key,
             default_value,
             evaluation_context,
             flag_evaluation_options,
         ).value
 
     def get_boolean_details(
         self,
-        key: str,
+        flag_key: str,
         default_value: bool,
         evaluation_context: EvaluationContext = None,
         flag_evaluation_options: typing.Any = None,
     ) -> FlagEvaluationDetails:
         return self.evaluate_flag_details(
             FlagType.BOOLEAN,
-            key,
+            flag_key,
             default_value,
             evaluation_context,
             flag_evaluation_options,
         )
 
     def get_string_value(
         self,
-        key: str,
+        flag_key: str,
         default_value: str,
         evaluation_context: EvaluationContext = None,
         flag_evaluation_options: typing.Any = None,
     ) -> str:
         return self.evaluate_flag_details(
             FlagType.STRING,
-            key,
+            flag_key,
             default_value,
             evaluation_context,
             flag_evaluation_options,
         ).value
 
     def get_string_details(
         self,
-        key: str,
+        flag_key: str,
         default_value: str,
         evaluation_context: EvaluationContext = None,
         flag_evaluation_options: typing.Any = None,
     ) -> FlagEvaluationDetails:
         return self.evaluate_flag_details(
             FlagType.STRING,
-            key,
+            flag_key,
             default_value,
             evaluation_context,
             flag_evaluation_options,
         )
 
     def get_number_value(
         self,
-        key: str,
+        flag_key: str,
         default_value: Number,
         evaluation_context: EvaluationContext = None,
         flag_evaluation_options: typing.Any = None,
     ) -> Number:
         return self.evaluate_flag_details(
             FlagType.NUMBER,
-            key,
+            flag_key,
             default_value,
             evaluation_context,
             flag_evaluation_options,
         ).value
 
     def get_number_details(
         self,
-        key: str,
+        flag_key: str,
         default_value: Number,
         evaluation_context: EvaluationContext = None,
         flag_evaluation_options: typing.Any = None,
     ) -> FlagEvaluationDetails:
         return self.evaluate_flag_details(
             FlagType.NUMBER,
-            key,
+            flag_key,
             default_value,
             evaluation_context,
             flag_evaluation_options,
         )
 
     def get_object_value(
         self,
-        key: str,
+        flag_key: str,
         default_value: dict,
         evaluation_context: EvaluationContext = None,
         flag_evaluation_options: typing.Any = None,
     ) -> dict:
         return self.evaluate_flag_details(
             FlagType.OBJECT,
-            key,
+            flag_key,
             default_value,
             evaluation_context,
             flag_evaluation_options,
         ).value
 
     def get_object_details(
         self,
-        key: str,
+        flag_key: str,
         default_value: dict,
         evaluation_context: EvaluationContext = None,
         flag_evaluation_options: typing.Any = None,
     ) -> FlagEvaluationDetails:
         return self.evaluate_flag_details(
             FlagType.OBJECT,
-            key,
+            flag_key,
             default_value,
             evaluation_context,
             flag_evaluation_options,
@@ -161,7 +162,7 @@ def get_object_details(
     def evaluate_flag_details(
         self,
         flag_type: FlagType,
-        key: str,
+        flag_key: str,
         default_value: typing.Any,
         evaluation_context: EvaluationContext = None,
         flag_evaluation_options: typing.Any = None,
@@ -182,7 +183,7 @@ def evaluate_flag_details(
             evaluation_context = EvaluationContext()
 
         hook_context = HookContext(
-            flag_key=key,
+            flag_key=flag_key,
             flag_type=flag_type,
             default_value=default_value,
             evaluation_context=evaluation_context,
@@ -207,7 +208,7 @@ def evaluate_flag_details(
 
             flag_evaluation = self.create_provider_evaluation(
                 flag_type,
-                key,
+                flag_key,
                 default_value,
                 merged_context,
             )
@@ -216,15 +217,26 @@ def evaluate_flag_details(
 
             return flag_evaluation
 
+        except OpenFeatureError as e:  # noqa
+            error_hooks(flag_type, hook_context, e, merged_hooks, None)
+            return FlagEvaluationDetails(
+                flag_key=flag_key,
+                value=default_value,
+                reason=Reason.ERROR,
+                error_code=e.error_code,
+                error_message=e.error_message,
+            )
         # Catch any type of exception here since the user can provide any exception
         # in the error hooks
         except Exception as e:  # noqa
             error_hooks(flag_type, hook_context, e, merged_hooks, None)
+            error_message = getattr(e, "error_message", str(e))
             return FlagEvaluationDetails(
-                key=key,
+                flag_key=flag_key,
                 value=default_value,
                 reason=Reason.ERROR,
-                error_code=e.error_message,
+                error_code=ErrorCode.GENERAL,
+                error_message=error_message,
             )
 
         finally:
@@ -233,7 +245,7 @@ def evaluate_flag_details(
     def create_provider_evaluation(
         self,
         flag_type: FlagType,
-        key: str,
+        flag_key: str,
         default_value: typing.Any,
         evaluation_context: EvaluationContext = None,
     ) -> FlagEvaluationDetails:
@@ -248,7 +260,7 @@ def create_provider_evaluation(
         provider
         """
         args = (
-            key,
+            flag_key,
             default_value,
             evaluation_context,
         )

open_feature/provider/no_op_provider.py

@@ -14,51 +14,51 @@ def get_name(self) -> str:
 
     def get_boolean_details(
         self,
-        key: str,
+        flag_key: str,
         default_value: bool,
         evaluation_context: EvaluationContext = None,
     ):
         return FlagEvaluationDetails(
-            key=key,
+            flag_key=flag_key,
             value=default_value,
             reason=Reason.DEFAULT,
             variant=PASSED_IN_DEFAULT,
         )
 
     def get_string_details(
         self,
-        key: str,
+        flag_key: str,
         default_value: str,
         evaluation_context: EvaluationContext = None,
     ):
         return FlagEvaluationDetails(
-            key=key,
+            flag_key=flag_key,
             value=default_value,
             reason=Reason.DEFAULT,
             variant=PASSED_IN_DEFAULT,
         )
 
     def get_number_details(
         self,
-        key: str,
+        flag_key: str,
         default_value: Number,
         evaluation_context: EvaluationContext = None,
     ):
         return FlagEvaluationDetails(
-            key=key,
+            flag_key=flag_key,
             value=default_value,
             reason=Reason.DEFAULT,
             variant=PASSED_IN_DEFAULT,
         )
 
     def get_object_details(
         self,
-        key: str,
+        flag_key: str,
         default_value: dict,
         evaluation_context: EvaluationContext = None,
     ):
         return FlagEvaluationDetails(
-            key=key,
+            flag_key=flag_key,
             value=default_value,
             reason=Reason.DEFAULT,
             variant=PASSED_IN_DEFAULT,

open_feature/provider/provider.py

@@ -12,7 +12,7 @@ def get_name(self) -> str:
     @abstractmethod
     def get_boolean_details(
         self,
-        key: str,
+        flag_key: str,
         default_value: bool,
         evaluation_context: EvaluationContext = EvaluationContext(),
     ):
@@ -21,7 +21,7 @@ def get_boolean_details(
     @abstractmethod
     def get_string_details(
         self,
-        key: str,
+        flag_key: str,
         default_value: str,
         evaluation_context: EvaluationContext = EvaluationContext(),
     ):
@@ -30,7 +30,7 @@ def get_string_details(
     @abstractmethod
     def get_number_details(
         self,
-        key: str,
+        flag_key: str,
         default_value: Number,
         evaluation_context: EvaluationContext = EvaluationContext(),
     ):
@@ -39,7 +39,7 @@ def get_number_details(
     @abstractmethod
     def get_object_details(
         self,
-        key: str,
+        flag_key: str,
         default_value: dict,
         evaluation_context: EvaluationContext = EvaluationContext(),
     ):

tests/provider/test_no_op_provider.py

@@ -13,7 +13,7 @@ def setup():
 def test_should_get_boolean_flag_from_no_op(no_op_provider_client):
     # Given
     # When
-    flag = no_op_provider_client.get_boolean_details(key="Key", default_value=True)
+    flag = no_op_provider_client.get_boolean_details(flag_key="Key", default_value=True)
     # Then
     assert flag is not None
     assert flag.value
@@ -23,7 +23,7 @@ def test_should_get_boolean_flag_from_no_op(no_op_provider_client):
 def test_should_get_number_flag_from_no_op(no_op_provider_client):
     # Given
     # When
-    flag = no_op_provider_client.get_number_details(key="Key", default_value=100)
+    flag = no_op_provider_client.get_number_details(flag_key="Key", default_value=100)
     # Then
     assert flag is not None
     assert flag.value == 100
@@ -33,7 +33,9 @@ def test_should_get_number_flag_from_no_op(no_op_provider_client):
 def test_should_get_string_flag_from_no_op(no_op_provider_client):
     # Given
     # When
-    flag = no_op_provider_client.get_string_details(key="Key", default_value="String")
+    flag = no_op_provider_client.get_string_details(
+        flag_key="Key", default_value="String"
+    )
     # Then
     assert flag is not None
     assert flag.value == "String"
@@ -49,7 +51,7 @@ def test_should_get_object_flag_from_no_op(no_op_provider_client):
     }
     # When
     flag = no_op_provider_client.get_string_details(
-        key="Key", default_value=return_value
+        flag_key="Key", default_value=return_value
     )
     # Then
     assert flag is not None