Step 1. Create your ZStack local Access Key
Please refer to the link below.
https://en.zstack.io/help/en/product_manuals/user_guide/6.8.html#c6_8_5_1
Step 2. Call ZStack API with Accesskey got by step 1.
Please refer to the link below.
https://en.zstack.io/help/en/dev_manual/dev_guide/3.html
Check the content which describes how to use accesskey in your RESTFul API call.
Here are some other sample code can be your reference.