Sending images to repo using API

I’m trying to send image files (.png) to a repository. I used this API method following the suggestions.

However, I get two errors: Write error: ssl=0x83775000: I/O error during system call, Broken pipe


HTTP 400 Bad Request
Malformed request
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I implemented this in Android using Kotlin. Are there some extra details about this API method? Is there a limit for the encoded file?

Turns out this was my fault regarding the request I made.