GET Request using HTTPS on Port 443

I am implementing a REST API sever in an embedded device.
I have a socket listener setup and working with HTTP on port 80 and this is working well. I need to now add HTTPS to the device.

Can anyone point me at a diagram of HTTPS transaction sequence for REST API’s.

When I ACK the initial request, I receive as initial 48 bytes. When I receive the transacted packet, I see 295 what look like encrypted bytes.

Any help will be greatly appreciated.