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from __future__ import annotations
from dataclasses import dataclass
from uuid import UUID
from litestar import Litestar, patch
from litestar.dto import DataclassDTO, DTOConfig, DTOData
@dataclass
class Person:
id: UUID
name: str
age: int
class PatchDTO(DataclassDTO[Person]):
"""Don't allow client to set the id, and allow partial updates."""
config = DTOConfig(exclude={"id"}, partial=True)
peter_uuid = UUID("f32ff2ce-e32f-4537-9dc0-26e7599f1380")
database = {peter_uuid: Person(id=peter_uuid, name="Peter", age=40)}
@patch("/person/{person_id:uuid}", dto=PatchDTO, return_dto=None, sync_to_thread=False)
def update_person(person_id: UUID, data: DTOData[Person]) -> Person:
"""Partially update a person."""
return data.update_instance(database[person_id])
app = Litestar(route_handlers=[update_person])
# run: /person/f32ff2ce-e32f-4537-9dc0-26e7599f1380 -X PATCH -H "Content-Type: application/json" -d '{"name":"Peter Pan"}'
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