How to assign a list of text into a Custom State which based on an Option Set schema

Need help Plugins
1

App Context

Okay, my app is basically allowing users to upload multiple PDF files then ask us to extract the content of each PDFs.

Setup

I am using the File & MultiFile Uploader · BEP Plugin.

After the file is uploaded, it returns a list of file names.

Goal

I need to :

  • show the list of files into these table
  • allowing users to input specifically which pages they want to extract
  • allowing users to input password to unlock the PDF
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Hypothesis

I explored and concluded that I need to create a Custom State which is a list that could temporarily store the input values before submitting as a JSON to an API. The Custom State will contain these “columns”:

  • File URL (i.e. “www. awss3. com/ 12345”)
  • File Name (i.e. “myfile.pdf”)
  • Pages (i.e. “1-3”)
  • Password (i.e. “password123”)

I have created these as an Option Set (“Uploaded Files Metadata”).

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I have set the Custom State (“Uploaded State”) to use this Option Set as the schema.

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Problem

My question is, how to assign the Uploaded File Names into the Custom State’s File Name column?

I have tried creating this workflow that “set state of an element”

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But it’s red.

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Help me fix this, I couldn’t find any topic regarding this, chatGPT nor other AI doesn’t help either. Thanks a lot for the help!