workflow api how to upload pdf？No method is found in the document.

[llama-factory]

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This issue was closed before it was resolved：#9839

[dosubot]

I found a similar closed issue titled "workflow api how to upload pdf？" which was referenced by another issue discussing the same topic ^[1].

To upload a PDF file using the Dify workflow API, you can follow these steps:

1. Enable File Upload in the "Start" Node: Add a custom file variable in the "Start" node and name it pdf. This allows users to upload a PDF file.

2. Add a Document Extractor Node: Use a "Document Extractor" node to extract content from the uploaded PDF file. The pdf variable from the "Start" node should be used as the input variable for this node. It converts the PDF content into a string-type output variable.

3. Process the Extracted Content with an LLM Node: Add an LLM node and use the output variable of the "Document Extractor" node in the system prompt. This allows the LLM to process the extracted text from the PDF file.

4. Configure the End Node: Select the output variable of the LLM node in the end node to complete the workflow.

Additionally, you can use the following API endpoint to upload files:

• Create documents from files

  curl --location --request POST 'https://api.dify.ai/v1/datasets/{dataset_id}/document/create_by_file' \
  --header 'Authorization: Bearer {api_key}' \
  --form 'data="{"indexing_technique":"high_quality","process_rule":{"rules":{"pre_processing_rules":[{"id":"remove_extra_spaces","enabled":true},{"id":"remove_urls_emails","enabled":true}],"segmentation":{"separator":"###","max_tokens":500}},"mode":"custom"}}";type=text/plain' \
  --form 'file=@"/path/to/file"'

This endpoint allows you to create a new document through a file based on existing knowledge ^[1].

To continue talking to Dosu, mention @dosu.

[crazywoola]

For questions, please use discussion instead.
For docs, please refer this #9832 later.