Fastapi 自定义响应模型
Fastapi custom response model
我有一个从数据库中获取所有数据的路由器。这是我的代码:
@router.get('/articles/', response_model=List[articles_schema.Articles])
async def main_endpoint():
query = articles_model.articles.select().where(articles_model.articles.c.status == 2)
return await db.database.fetch_all(query)
响应是一个包含 JSON 个像这样的对象的数组
[
{
"title": "example1",
"content": "example_content1"
},
{
"title": "example2",
"content": "example_content2"
},
]
但是我想这样回复:
{
"items": [
{
"title": "example1",
"content": "example_content1"
},
{
"title": "example2",
"content": "example_content2"
},
]
}
我怎样才能做到这一点?请帮忙。提前谢谢你
您可以简单地定义另一个包含 items
列表的模型作为字段:
from pydantic import BaseModel
from typing import List
class ResponseModel(BaseModel):
items: List[articles_schema.Articles]
并在响应中使用它:
@router.get('/articles/', response_model=ResponseModel)
async def main_endpoint():
query = articles_model.articles.select().where(
articles_model.articles.c.status == 2
)
return ResponseModel(
items=await db.database.fetch_all(query),
)
此外,如果您打算重复使用响应模板,您可以使用通用类型创建自定义响应,如下所示
from typing import Any, Generic, List, Optional, TypeVar
from pydantic import BaseModel
from pydantic.generics import GenericModel
DataType = TypeVar("DataType")
class IResponseBase(GenericModel, Generic[DataType]):
message: str = ""
meta: dict = {}
items: Optional[DataType] = None
@router.get('/articles/', response_model=IResponseBase[List[Articles]])
async def main_endpoint():
query = articles_model.articles.select().where(articles_model.articles.c.status == 2)
items=await db.database.fetch_all(query)
return IResponseBase[List[Articles]](items=items)
您可以在此处找到 FastAPI 模板
https://github.com/jonra1993/fastapi-alembic-sqlmodel-async/blob/main/fastapi-alembic-sqlmodel-async/app/schemas/common.py
我有一个从数据库中获取所有数据的路由器。这是我的代码:
@router.get('/articles/', response_model=List[articles_schema.Articles])
async def main_endpoint():
query = articles_model.articles.select().where(articles_model.articles.c.status == 2)
return await db.database.fetch_all(query)
响应是一个包含 JSON 个像这样的对象的数组
[
{
"title": "example1",
"content": "example_content1"
},
{
"title": "example2",
"content": "example_content2"
},
]
但是我想这样回复:
{
"items": [
{
"title": "example1",
"content": "example_content1"
},
{
"title": "example2",
"content": "example_content2"
},
]
}
我怎样才能做到这一点?请帮忙。提前谢谢你
您可以简单地定义另一个包含 items
列表的模型作为字段:
from pydantic import BaseModel
from typing import List
class ResponseModel(BaseModel):
items: List[articles_schema.Articles]
并在响应中使用它:
@router.get('/articles/', response_model=ResponseModel)
async def main_endpoint():
query = articles_model.articles.select().where(
articles_model.articles.c.status == 2
)
return ResponseModel(
items=await db.database.fetch_all(query),
)
此外,如果您打算重复使用响应模板,您可以使用通用类型创建自定义响应,如下所示
from typing import Any, Generic, List, Optional, TypeVar
from pydantic import BaseModel
from pydantic.generics import GenericModel
DataType = TypeVar("DataType")
class IResponseBase(GenericModel, Generic[DataType]):
message: str = ""
meta: dict = {}
items: Optional[DataType] = None
@router.get('/articles/', response_model=IResponseBase[List[Articles]])
async def main_endpoint():
query = articles_model.articles.select().where(articles_model.articles.c.status == 2)
items=await db.database.fetch_all(query)
return IResponseBase[List[Articles]](items=items)
您可以在此处找到 FastAPI 模板 https://github.com/jonra1993/fastapi-alembic-sqlmodel-async/blob/main/fastapi-alembic-sqlmodel-async/app/schemas/common.py