I am trying to find the correct code to authenticate a file transfer to AWS S3 using aws-iot-device-sdk-embedded-c from GitHub but cannot find the correct embedded C code to use in my STM32CubeIDE project. Doe anyone have any hints or tips?

[MHarr.8]

I have looked through the SDK mentioned above but I need code in embedded C that I can use in my STM32CubeIDE but cannot find it. The code needs to follow the flow shown in the attached file.

Do anyone know how I should go about doing this and what code i should use?