How to change response data extract in POSTMAN - json

Question

as in this example, I get the data from Starwar's GraphQL: https://swapi-graphql.netlify.app/.netlify/functions/index
Body Request:
query {
allFilms {
films {
title
}
}
}
Response data:
{
"data": {
"allFilms": {
"films": [
{
"title": "A New Hope"
},
{
"title": "The Empire Strikes Back"
},
{
"title": "Return of the Jedi"
},
{
"title": "The Phantom Menace"
},
{
"title": "Attack of the Clones"
},
{
"title": "Revenge of the Sith"
}
]
}
}
}
However, I want to get the responding data as an array of "films" like this:
[
{
"title": "A New Hope"
},
{
"title": "The Empire Strikes Back"
},
{
"title": "Return of the Jedi"
},
{
"title": "The Phantom Menace"
},
{
"title": "Attack of the Clones"
},
{
"title": "Revenge of the Sith"
}
]
So how can I do that? (if I'm not wrong, it's related to Pre-request Script)

Answer 1

You won't be able to change the format of the response, but you can process the result so it provides exactly what you want. I created this request on Postman so you can see how I've done it.
You need to transform the response when you fetch it, in postman you would do so in the Tests tab (i.e. post-response script vs pre-request):
// Getting the response data into a variable response
const response = pm.response.json();
// Converting the original response to the format you want
const filmArray = response.data.allFilms.films
// Logging it to the console so you can verify the results
console.log(filmArray)
This is the result of that console.log on postman: