Create a new test case via API

Hello all,

I would like to ask how can I create Test or any kind of issue through Zephyr's API. I was able to create test cycle through

the following API https://zfjcloud.docs.apiary.io/#reference/cycle 

I did not find the way to create an issue or more specifically test case via API. I would really appreciate a tip how to configure headers and body too.

Can you please help me with this?