CODEWITHSUNDEEP
pythontypescriptformspostfastapi
mviniciusserra
mviniciusserra

Reputation: 81

FastAPI POST - Error 422 detail'': ( ( loc'':(body file msg'':field required'', type'': value_error missing)))

I want to read in backend this xlsx file. When I use the swagger I get it, but when I test in frontend I receive an Error 422 - devtools/Network detail'': ( ( loc'':(body file msg'':field required'', type'': value_error missing))).

router = APIRouter()

@router.post('/')
async def upload_file(file: Uploadfile = File(...)):

  try:
    arquivo = await file.read()
    df_cambio = pd.read_excel(arquivo)
    cambio_dict = df_cambio.to_dict('index')
    
    print(cambio_dict)
    return{"file_name": file.filename}
  
  except Exception as e:
    exception_handler(e)

react ->

export defaut function Dropzone() {
const [create, {isLoading}] = usePost();

const handleSubmit = (res) => {
    create('cambios', { data:res.file }})
};
if (isLoading) { return <LoadingPageSkeleton />;}

return (

<BasicForm
  initialValues={{}}
  onSubmit={handleSubmit}
>
    <FormInput id="file />
    <FormSubmitButton/>
</Basicform>

Upvotes: 8

Views: 19112

Answers (2)

miksolo
miksolo

Reputation: 49

I faced similar issue by trying to create python pop request for FastAPI demo file upload. Working from docs where it gave me ready code in form of curl line:

curl -X 'POST' \
  'http://127.0.0.1:8000/uploadfile/' \
  -H 'accept: application/json' \
  -H 'Content-Type: multipart/form-data' \
  -F 'file=@test_file'

(FastAPI auto generated docs page). Which i used as hint and from which I got that header for file name should be in the form of "type" : "multipart/form-data" , files = { "file" : test_file_descriptor } And it worked

More exact: key for the file descriptor should be file. My case (Python):

test_response = requests.post(
  test_url, 
  data={
      'filename': test_file ,
      "msg":"hello" ,
      "type" : "multipart/form-data"
    }, 
      files = { "file" : test_file  } 
  )

Where test_file` is file descriptor.

I know that my case might be different, but this is the only meaningful google link for this error, and someone with my case could also use it.

Upvotes: 4

Preethi J
Preethi J

Reputation: 1

check the post request you are sending as it's case sensitive .swagger document post part and testing doc post request should match.

And request 
"""{
            "question": "#(question)",
            "History":{}
                   
    }"""    
When method post

Upvotes: 0

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