HTTP Post form-data does not work with file (Could not parse multipart form)

[saendu]

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Dify version

0.11.1

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

1. create a flow with a file param
2. create a HTTP Post node with form-data
3. attach file to form data
4. try to send multipart form to server

✔️ Expected Behavior

Correct parsing of multipart form. Adding Content-Disposition file to form-data.

❌ Actual Behavior

Form-data is not correctly parsed. Content-Disposition data 'file' is missing.

POST /v1/audio/transcriptions HTTP/1.1 
Host: api.openai.com 
Content-Type: multipart/form-data; boundary=----WebKitFormBoundarymriqkhpjloahvxub 
Authorization: ***************************************************************************************************************************************************************************
 
------WebKitFormBoundarymriqkhpjloahvxub 
Content-Disposition: form-data; name="model" 
 
whisper-1 
------WebKitFormBoundarymriqkhpjloahvxub 
Content-Disposition: form-data; name="" 
 
 
------WebKitFormBoundarymriqkhpjloahvxub-- 

`

Error from server: Could not parse multipart form
"status_code": 400,
  "body": "{\n    \"error\": {\n        \"message\": \"Could not parse multipart form\",\n        \"type\": \"invalid_request_error\",\n        \"param\": null,\n        \"code\": null\n    }\n}\n",

[dosubot]

I found two similar discussions that might be relevant to your issue:

1. How to use API to upload file in 0.11.0 - This discussion is still open and might contain insights or solutions related to file uploads in Dify version 0.11.0 ^[1].

2. How can I upload with multiple files to another server to handle? - This is another open discussion that might provide useful information on handling file uploads ^[2].

For your specific issue, ensure that the Content-Disposition header is correctly set for the file in your multipart form-data. The name attribute should be specified, and the file should be included with a proper filename attribute. Here's an example of how it should look:

Content-Disposition: form-data; name="file"; filename="yourfile.txt"

Make sure that the file is being correctly attached in the form-data and that the server expects the file under the correct parameter name. If the issue persists, reviewing the discussions linked above might provide additional context or solutions.

To continue talking to Dosu, mention @dosu.

[crazywoola]

This pull request #10695 can resolve part of you problems, but it still does not fix current behavior.

[saendu]

This pull request #10695 can resolve part of you problems, but it still does not fix current behavior.

Can you specify 'part of my problem'?

[crazywoola]

This pull request #10695 can resolve part of you problems, but it still does not fix current behavior.

Can you specify 'part of my problem'?

You can use this new tool to get the transcriptions from the OpenAI instead of using the HTTP Node.

[saendu]

This pull request #10695 can resolve part of you problems, but it still does not fix current behavior.

Can you specify 'part of my problem'?

You can use this new tool to get the transcriptions from the OpenAI instead of using the HTTP Node.

Ok thanks. I guess this will be released with the next release?
About the HTTP Post form-data. The strange thing about this bug is, it worked a couple of releases ago.

[laipz8200]

Hi @saendu. Could you provide a minimal dsl to reproduce this issue? I tried in our Cloud service by sending a text file to httpbin.org, and it works well.

[saendu]

I've upgraded to 0.11.2 and it seems to work again. Cannot reproduce the bug anymore. You can close. Thanks!