use curl to upload in memory csv file

Question

I am currently using Python perform a POST to a desired url and upload an in memory csv file:

Python code:

csv_content = 'some,fake,single,row,csv\r\n'
requests.post(
    'http://some.location.com',
    files={'form_field_name': ('file_name.csv', csv_content, 'text/csv')},
    # implicit "multipart/form-data" content-type header
)

The Python code works well, but I really want to use curl to perform the action.

What I have: (I know it is missing a lot, I tried variations of

curl -X POST http://some.location.com -H "Content-Type: text/csv"

I am not sure the header is good
Not sure how to specify the data, as -d would not be enough - I want to add a file name as well

Tanaike · Accepted Answer · 2019-03-24 23:24:16Z

1

How about this answer? There are several solutions for your situation, so please think of this as one of them.

When your python script is run, "form_field_name": "some,fake,single,row,csv\r\n" is sent as files. file_name.csv is used as the filename. In this case, the request body is as follows.

Request body:

--boundaryboundary
Content-Disposition: form-data; name="form_field_name"; filename="file_name.csv"
Content-Type: text/csv

some,fake,single,row,csv

--boundaryboundary--

Sample curl:

When above request body is used, the sample curl is as follows.

curl -H "Content-Type: multipart/form-data; boundary=boundaryboundary" \
  -d $'--boundaryboundary\r\nContent-Disposition: form-data; name="form_field_name"; filename="file_name.csv"\r\nContent-Type: text/csv\r\n\r\nsome,fake,single,row,csv\r\n\r\n--boundaryboundary--' \
  "http://some.location.com"

Content-Type of the header uses multipart/form-data; boundary=boundaryboundary.
The request body is directly used.
The filename is given as file_name.csv.
Each line break was replaced to \r\n.

If this was not the result you want, I apologize.

answered Mar 24, 2019 at 23:24

Tanaike

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2 Comments

camelBack Over a year ago

thank you for your time :) I tried using the curl you posted, used my real data, but it does not succeed

Tanaike Over a year ago

@camelBack Thank you for replying. I apologize for the inconvenience. About it does not succeed, can I ask you about the detail information and can you confirm your python script again? Because my sample curl is the same request body with your python script. I would like to confirm your situation and modify it.

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