Starting process instance via REST

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anoopmonish

tried sending this as body to POST request /activiti-app/api/enterprise/process-definitions.

{
     "processDefinitionId":"testprocess:1:707196",
     "name":"processapp",
     "values":
     {   
          "name":"",
          "department":"XYZ",
          "year":"2016"
     }
}
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response:

{
  "message": "No start form has been found for process definition: testprocess:1:707196",
  "messageKey": "GENERAL.ERROR.NOT-FOUND"
}
‍‍‍‍‍‍

how do we send variables as input before starting the process..
runtimeService.startProcessInstanceById(id, variableMap) - tried this it works.

but how do we pass variables via rest call.. is it not possible without a startform.?

Thanks,

anoopmonish

correction in question: *
i used this  -    /activiti-app/api/enterprise/process-instances.
not this      -    /activiti-app/api/enterprise/process-definitions.