init: added template

src/backend/api/v1/schemas.py

@@ -0,0 +1,33 @@
+from datetime import datetime
+from typing import Any
+
+from ninja import Schema
+from pydantic import ConfigDict, Field
+
+
+class FieldError(Schema):
+    model_config = ConfigDict(populate_by_name=True)
+
+    field: str = Field(
+        ...,
+        description="Field name with error (can be nested)",
+    )
+    issue: str = Field(..., description="Problem description")
+    rejected_value: Any = Field(
+        None, alias="rejectedValue", description="Value that failed validation"
+    )
+
+
+class ApiError(Schema):
+    model_config = ConfigDict(populate_by_name=True)
+
+    code: str
+    message: str
+    trace_id: str = Field(..., alias="traceId")
+    timestamp: datetime
+    path: str
+    details: dict[str, Any] | None = None
+
+
+class ValidationError(ApiError):
+    field_errors: list[FieldError] = Field(..., alias="fieldErrors")