How do I send & receive JSON request while calling a external REST from within the BPMN

[rohansshetty7]

Thanks for your response. I got your point however, I am not completely aware of how to put the JSON payload into the process.

As in lets say I am getting a variable as part of the payload while a Camunda process is instantiated, does it automatically become a process variable?

Or I have to do something like this
execution.setVariable(“MyPayloadToExternalCALL”, “processPayloadWhileStartingProcess”)

I have another query regarding the same in this forum as below, may be your answer will answer both.

I am not able to find an example which processes a Custom object passed while starting a process instance

Hi, I have been trying to create a BPMN which is capable of taking Custom Payload in the form of JSON and then use it within my process. Though I see some glimpse of Camunda Spin being used for this requirement I am unable to figure out how I can access the JSON within using expression language or Java delegate methods. Can anyone help me with an example of the same?