Error in File ingestion in external api using HTTP Request node

[muckthaa-ss]

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Dify version

0.10.0

Cloud or Self Hosted

Cloud

Steps to reproduce

I upload a file in the HTTP request body, but it returns an error saying unsupported file format.
Example, I upload a .pdf file and the external api for ingestion handles .pdf and .txt files and for other formats, it throws the "unsupported file format." message.

✔️ Expected Behavior

File is ingested successfully message in the output.

❌ Actual Behavior

Unsupported file format error.

[dosubot]

The "unsupported file format" error you're encountering might be due to a few potential issues:

1. File Format Validation: Ensure that the file is indeed a valid PDF. Sometimes, files with a .pdf extension might not be properly formatted as PDFs, leading to validation errors.

2. Content-Type Header: Verify that the Content-Type header is correctly set to multipart/form-data in your HTTP request. This is crucial for file uploads, as it ensures the server correctly interprets the incoming data ^[1].

3. File Size Limitations: Check if the file size exceeds any limits set by the API. The Dify API supports files up to 15MB in size ^[2].

4. Correct API Endpoint: Double-check that you are using the correct API endpoint and that it is configured to accept PDF files.

If all these aspects are correctly configured and the issue persists, there might be a need to look into the server-side handling of the file to ensure it is not rejecting the file for any other reason.

To continue talking to Dosu, mention @dosu.

[muckthaa-ss]

It is a valid .pdf file and the file is just 422kb.
I have also verified the API endpoint and the header and it is correct.

[crazywoola]

Duplicated #9599