Multiple calls of the script php

[FeliceT57]

In this simple program I notes that the scipt php is called for 2 times. I want to know if it is possibile to call it only one time.

import 'package:flutter/material.dart';
import 'package:get/get.dart';

void main() {
runApp(MyApp());
}

class MyApp extends StatelessWidget {
@OverRide
Widget build(BuildContext context) {
return GetMaterialApp(
home: MyHomePage(),
);
}
}

class MyHomePage extends StatelessWidget {
RxString response = ''.obs;

Future fetchData() async {
try {
final response = await GetConnect().get('http://192.168.1.21/test.php');

  if (response.status.hasError) {
    print('Errore: ${response.statusText}');
    this.response.value = 'Errore nella chiamata API';
  } else {
    print('Dati ricevuti con successo: ${response.body}');
    this.response.value = response.body.toString();
  }
} catch (e) {
  print('Errore: $e');
  this.response.value = 'Errore nella chiamata API';
}

}

@OverRide
Widget build(BuildContext context) {
// Chiamare fetchData all'avvio dell'app
fetchData();

return Scaffold(
  appBar: AppBar(
    title: Text('App GetConnect'),
  ),
  body: Center(
    child: Column(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        SizedBox(height: 20),
        Obx(
          () => TextField(
            controller: TextEditingController(text: response.value),
            readOnly: true,
            decoration: InputDecoration(
              labelText: 'Risultato API PHP',
            ),
          ),
        ),
      ],
    ),
  ),
);

}
}