59 lines
1.9 KiB
Python
59 lines
1.9 KiB
Python
from typing import Any
|
|
|
|
from fastapi import Request
|
|
from fastapi.encoders import jsonable_encoder
|
|
from fastapi.exceptions import RequestValidationError
|
|
from fastapi.responses import JSONResponse
|
|
from starlette.exceptions import HTTPException as StarletteHttpException
|
|
|
|
from app.contracts import ErrorDetail, ErrorResponse
|
|
|
|
|
|
class ApiError(Exception):
|
|
def __init__(
|
|
self,
|
|
status_code: int,
|
|
code: str,
|
|
message: str,
|
|
details: dict[str, Any] | None = None,
|
|
) -> None:
|
|
self.status_code = status_code
|
|
self.code = code
|
|
self.message = message
|
|
self.details = details or {}
|
|
|
|
|
|
async def api_error_handler(_: Request, exc: ApiError) -> JSONResponse:
|
|
body = ErrorResponse(
|
|
error=ErrorDetail(code=exc.code, message=exc.message, details=exc.details)
|
|
)
|
|
return JSONResponse(status_code=exc.status_code, content=jsonable_encoder(body))
|
|
|
|
|
|
async def validation_error_handler(_: Request, exc: RequestValidationError) -> JSONResponse:
|
|
body = ErrorResponse(
|
|
error=ErrorDetail(
|
|
code="VALIDATION_ERROR",
|
|
message="Request validation failed.",
|
|
details={"errors": exc.errors()},
|
|
)
|
|
)
|
|
return JSONResponse(status_code=422, content=jsonable_encoder(body))
|
|
|
|
|
|
async def http_error_handler(_: Request, exc: StarletteHttpException) -> JSONResponse:
|
|
code = "RESOURCE_NOT_FOUND" if exc.status_code == 404 else "HTTP_ERROR"
|
|
body = ErrorResponse(
|
|
error=ErrorDetail(code=code, message=str(exc.detail), details={})
|
|
)
|
|
return JSONResponse(status_code=exc.status_code, content=jsonable_encoder(body))
|
|
|
|
|
|
def not_implemented(resource: str) -> None:
|
|
raise ApiError(
|
|
status_code=501,
|
|
code="NOT_IMPLEMENTED",
|
|
message=f"{resource} contract is available, but its business service is not implemented.",
|
|
details={"resource": resource},
|
|
)
|