Modify requestBody structure

[Niko Kovac]

Hey!

Let's say I have a JSON file with the following structure: 

{
  "firstName": "${firstName}",
  "lastName" : "${lastName}",
  "age"      : ${age},
  "address"  : {
    "streetAddress": "${street}",
    "city"         : "${city}",
    "postalCode"   : "${postal}"
  }
}

I can make a POST request and use the file above, like this:

.body(ElFileBody("myFileBody.json")).asJSON

But is it possible to modify json body structure before making a request? For example, I don't need to send a postalCode field every time. What is the right way to remove $.address.postalCode node before request sending?