英文:
Access request.body() parameters without async await in FastAPI
问题
我正在尝试在后端路由上不使用异步方式接收来自ajax调用的请求体参数。
在使用异步方式时，它可以正常工作：
@app.post('/process-form')
async def process_form(request: Request):
# 访问表单数据
form_data = await request.body()
da = jsonable_encoder(form_data)
print(da)
但是在不使用异步方式时，body() 方法不存在（VS Code调试器中），而且似乎是可等待的：
@app.post('/process-form')
def process_form(request: Request):
# 访问表单数据
form_data = request.body()
da = jsonable_encoder(form_data)
print(da)
site-packages\anyio\streams\memory.py", line 89, in receive_nowait
raise WouldBlock
anyio.WouldBlock
为什么会这样，并且如何从请求中接收我的数据呢？
英文:
I am trying to receive body parameters from ajax call without using async on backend route.
When doing async It is working fine:
@app.post('/process-form')
async def process_form(request : Request):
# Access form data
form_data = await request.body()
da = jsonable_encoder(form_data)
print(da)
But without async body() does not exist (vs code debugger) and it is awaitable or something:
@app.post('/process-form')
def process_form(request : Request):
# Access form data
form_data = request.body()
da = jsonable_encoder(form_data)
print(da)
site-packages\anyio\streams\memory.py", line 89, in receive_nowait
raise WouldBlock
anyio.WouldBlock
Why is it so and how Could I receive my data from request?
答案1
得分: 1
以下是代码的翻译部分：
# foo.py
from asyncio import run
from fastapi import FastAPI, Request
app = FastAPI()
@app.post('/')
def process_form(request: Request):
body = run(request.body())
print(body)
我使用以下命令运行应用程序：
$ uvicorn --host 0.0.0.0 --port 9999 --reload foo:app
并使用以下命令进行测试：
$ curl http://localhost:9999/ -XPOST --data-raw 'hello world'
关键是使用 asyncio.run（python3.9 的文档链接）来“同步执行”协程和任务。
英文:
Does the following code accomplish what you are looking for?
# foo.py
from asyncio import run
from fastapi import FastAPI, Request
app = FastAPI()
@app.post('/')
def process_form(request: Request):
body = run(request.body())
print(body)
I run the app with:
$ uvicorn --host 0.0.0.0 --port 9999 --reload foo:app
And test with:
$ curl http://localhost:9999/ -XPOST --data-raw 'hello world'
<hr />
The key is to use asyncio.run (documentation for python3.9) to "execute synchronously" coroutines and tasks.
答案2
得分: 0
你可以这样做以获得同步端点并访问有效负载：
@app.post('/process-form')
def process_form(form_data: Any, request : Request):
# 访问表单数据
print(form_data)
form_data 将包含你发送的数据作为请求的有效负载。
你需要正确地对 form_data 进行类型标注。
我认为这个帖子与你的问题类似: https://stackoverflow.com/questions/70658748/using-fastapi-in-a-sync-way-how-can-i-get-the-raw-body-of-a-post-request
英文:
You can do this to have a sync end-point and access the payload:
@app.post('/process-form')
def process_form(form_data: Any, request : Request):
# Access form data
print(form_data)
form_data will contain the data you send as a payload to your request.
You'll need to correctly type form_data
I think this post is similar to your question https://stackoverflow.com/questions/70658748/using-fastapi-in-a-sync-way-how-can-i-get-the-raw-body-of-a-post-request
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