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HTTP Post multipart/form-data

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Posted on by JonathanM

Hi,

I am trying to post SharePoint files to a 3rd party via their API. Their API uses multipart/form-data. After some trial and error, I can POSTcontent, but only text files come out correctly on the destination. Other files (Excel, Word, jpg, etc.) post, but the data is not readable. What do I need to do to the file content to format it properly?

Thanks!

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franciscooa 78 on at

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Re: HTTP Post multipart/form-data

Hi @JonathanM ,

I did the request with the same format you did and I got the error:

{"description":"Validation failed","errors":[{"field":"file","message":"Unexpected/invalid field in request","code":"invalid_field"}]}

Can anyone help?

Thanks!
DACIT 3 on at

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Re: HTTP Post multipart/form-data

Thank you so much for posting this! I was experiencing the exact same thing and could not figure out what was amiss.
matthew12333333 162 on at

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Re: HTTP Post multipart/form-data

Thank you, that was the point!!!!
WillPage 2,060 on at

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Re: HTTP Post multipart/form-data

What exactly are you converting to base64?. It might be that the input to that is already in the right format and you're doing an extra step that breaks it
matthew12333333 162 on at

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Re: HTTP Post multipart/form-data

The pdf is sent, but is still corrupted. (I cannot open it).
WillPage 2,060 on at

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Re: HTTP Post multipart/form-data

What error?
matthew12333333 162 on at

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Re: HTTP Post multipart/form-data

Hi @WillPage,
I followed your web page. I'm with email attachment and I would like to send pdf file. Do you know what i'm doing wrong?
matthew11111112 19 on at

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Re: HTTP Post multipart/form-data

I have a error and I have to put X-NomFichier. How should I change that:
matthew11111112 19 on at

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Re: HTTP Post multipart/form-data

Invalid request for me, any idea? @Anonymous
matthew11111112 19 on at

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Re: HTTP Post multipart/form-data

Hello,
I'm able to send my file, put I cannot open it. Do you know how I can do it please?