How to send Process variables when instantiating a process using Rest API in POST pay load

Q&A
1

I tried the following rest api call to instantiate a process which has process variables “product”, “stage”, “customer”.But it is not setting the values of process variables.

http://172.23.10.67:41965/bonita/API/bpm/process/8684370917743112272/instantiation

{

   "product":"LCApplicationRajesh",
        
    "stage":"New SubmissionRajesh",
     
    "customer":"VIPRajesh"

}

Any help will be greatly appreciated.

Thanks & Regards
Rajesh Kohir