Parse header values from trigger to creates in zapier integrations

Hello everyone,

We are considering building an zapier integration(cli) and i’m currently building a demo app,but i’m stuck with the following problem:

Our app uses API-KEY authentication and REST Hook trigger,but i when i send some data to the trigger via the webhookURL i want to extract a specific header from that  request which i can in the trigger:

const perform = async (z, bundle) => {

bundle.rawRequest.headerse‘Http-My-Header’]

return

};

but i don’t know how to parse that value to the creates section so that i can send back to my server ? 

Since its not a user input field i would like to avoid using the input fields for that .

Thanks .