Unable to upload the file along with the HTTP request to my API in copilot studio

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Posted on by AD-23121232-0

Hi,

I'm trying to upload a file that the chat bot will ask and store it in a variable, and I wanted to upload the same with a simple HTTP request to my API, but apparently I could not find

any option that would allow me to attach as such. Here's the flow I've build:

I have tried and tested setting all parameters, but no luck.

Any help is appreciated.

Thanks in advance!

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Calling actions from Copilot Studio

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Artur Stepniak 1,539 Super User 2025 Season 2 on at

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Hello,

first of all, you're using `file` variable in the Content Type section - it's not correct. You also don't need to define Content-Type header separately as the Content Type field is for that purpose. You should use JSON in the body. Here's an example which you could use, it's from Power Automate, so you'd need to alter it a bit:

{ "$content-type": "multipart/form-data", "$multipart": [ { "headers": { "Content-Disposition": "form-data; name=\"file\"; filename=\"@{utcNow('yyyyMMddHHmmss')}.pdf\"" }, "body": "@{body('Get_file_content')}" } ] }

In case of any other questions, let me know. If the answer helped you, mark it, so that others can benefit from it.

Best regards,

Artur Stepniak

Interested in GenAI? Visit my site!

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AD-23121232-0 5 on at

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@Artur Stepniak Thanks for your reply! I have spent so many hours trying to figure out, even tried the snippet you gave, but I feel like it's not processing the variable as an object, instead as a string. Maybe because you shared the syntax for Power Automate? Is it possible there's some other syntax for it, or even it may not support this?

I just need to upload the file received to my API. Hope I find some solution!

Thanks for the support, appreciate it.

Best regards,

Aum Dabke

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