How to write text in Http request

i have a text file with some paragraph written , i have to write that data in slack application with HTTP request activity ,

In Body section how to pass the text file data , please give me format
i tried passing string variable in body section but not working

thanks in advance

Did you check the API documentation? It should tell you in which format (e.g. “application/xml” or “application/json”) and how to format the string.

image

Hello @Shoebmd
Refer to this video, It may helps you