Initial public release

backend/app/schemas/common.py

@@ -0,0 +1,54 @@
+from __future__ import annotations
+
+from typing import Any, Generic, Literal, TypeVar
+
+from pydantic import BaseModel, Field
+
+
+DataT = TypeVar("DataT")
+
+
+class Envelope(BaseModel, Generic[DataT]):
+    data: DataT
+
+
+class ItemList(BaseModel, Generic[DataT]):
+    items: list[DataT]
+    total: int
+
+
+class PaginatedEnvelope(ItemList[DataT], Generic[DataT]):
+    limit: int
+    offset: int
+
+
+class PaginationEnvelope(BaseModel):
+    items: list
+    total: int
+    limit: int = Field(default=50)
+    offset: int = Field(default=0)
+
+
+class ApiErrorItem(BaseModel):
+    code: str
+    message: str
+    details: dict = Field(default_factory=dict)
+
+
+class ApiErrorEnvelope(BaseModel):
+    error: str
+    message: str
+    details: dict | list = Field(default_factory=dict)
+    request_id: str | None = None
+
+
+class GeoJsonFeature(BaseModel):
+    type: Literal["Feature"]
+    id: str | int | None = None
+    geometry: dict[str, Any] | None
+    properties: dict[str, Any] = Field(default_factory=dict)
+
+
+class GeoJsonFeatureCollection(BaseModel):
+    type: Literal["FeatureCollection"]
+    features: list[GeoJsonFeature]