API variable always = 0

hey guys, i get this API Response :

{
"count": 3,
"rooms": [
{
"id": 1,
"name": "Deluxe Room",
"status": "available",
"price": 120,
"description": "A spacious room with a king-sized bed, en-suite bathroom, and a beautiful city view.",
"amenities": [
"WiFi",
"Air conditioning",
"Flat-screen TV",
"Room service",
"Mini-bar"
],
"occupancy": {
"maxAdults": 2,
"maxChildren": 1
},
"size": "30m²",
"bedType": "King",
"images": [
"http://localhost:3000/images/room1.jpg"
],
"cancellationPolicy": "Free cancellation within 48 hours of booking. After that, cancel up to 24 hours before check-in for a full refund."
},
{
"id": 2,
"name": "Standard Room",
"status": "available",
"price": 80,
"description": "Comfortable room with a queen-sized bed, private bathroom, and modern amenities.",
"amenities": [
"WiFi",
"Air conditioning",
"Flat-screen TV"
],
"occupancy": {
"maxAdults": 2
},
"size": "20m²",
"bedType": "Queen",
"images": [
"http://localhost:3000/images/room2.jpg"
],
"cancellationPolicy": "Non-refundable."
},
{
"id": 3,
"name": "Suite",
"status": "available",
"price": 200,
"description": "An elegant suite with separate living area, king-sized bed, and panoramic views.",
"amenities": [
"WiFi",
"Air conditioning",
"Flat-screen TV",
"Room service",
"Mini-bar",
"Jacuzzi"
],
"occupancy": {
"maxAdults": 2,
"maxChildren": 2
},
"size": "50m²",
"bedType": "King",
"images": [
"http://localhost:3000/images/room3.jpg"
],
"cancellationPolicy": "Free cancellation up to 7 days before check-in. After that, cancel up to 48 hours before check-in for a 50% refund."
}
],
im trying to get the "count" variable in a local "total_rooms" variable (response.count) It always displays '0' when display {total_rooms} into a textbox, i dont know why.

Thanks for your time and help !