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Email attachment decoding?

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Posted on by ms_admin

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I have a really simple flow that takes an email attachment and sends an HTTP POST with the attachment contents in the body.

The email attachment is a simple text file that just says the word "test"

Why do the contents come through like below?

If I don't use a string variable and simple send "Attachment Contents" in the HTTP body, it comes through just as strange

What is the proper way to use text attachment contents in a flow without the encoding messed with? Thanks a ton,

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v-litu-msft Microsoft Employee on at

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Hi @ms_admin,

The content of the received attachment is base64 code, if you want it to display readable, you could use the base64ToString() function convert it into string, for example:

base64ToString(outputs('Get_Attachment_(V2)')?['body/contentBytes'])

Best Regards,
Community Support Team _ Lin Tu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
ms_admin 5 on at

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Thank you so much, this helped.

It also turned out an image in my signature was being sent as an attachment while testing making things even more confusing.

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