I’m using WireMock Standalone to mock API responses, and I need to dynamically calculate values within my response templates. Specifically, I want to perform basic arithmetic operation (multiplication) on values extracted from the request.

  {
    "price": {{jsonPath node $.price}},
    "quantity": {{jsonPath node $.quantity}},
    "amt": {{multiply (parseInt (this.price)) (parseFloat (this.quantity))}}
  }

To achieve the desired outcome, I need to multiply the ‘price’ and ‘quantity’ values (are of type string) and store the result in a new key named ‘amt’ within the JSON response. However, I’m encountering a couple of challenges:

1. parseInt & parseFloat are not a valid functions in this context. I need to help on how to correctly convert this to int / floats beforehand to multiply them.
2. I’m uncertain about how to correctly reference the keys price and quantity within the same JSON response template.”

Open to other suggestions as well.
TIA.