How can I store the values ​of the json or request in a variable without using future builder or list builder in flutter? - flutter

Question

I want to use the information I get from the json or request and be able to use it in a useraccountheader drawer but WITHOUT, using a list builder or future builder.
I usually use a future builder and display the information from the database.
I want to get the json or request information and store it in a variable or use it directly in a text widget.
It is also to have loaded user information.
In the infoinitialuser2 list, the values ​​of the json or request are stored and I show them in the list builder or future builder, but as I just mentioned, I don't want to do it that way.
code::
Class State<NombreCabeceraDrawer> extends StatefulWidget{return nombrecabeceradrawer()}
class nombrecabeceradrawer extends State<NombreCabeceraDrawer> {
verride
void initState() {
cabeceradrawerservices.MostrarInfoInicialUser().then((value) {
setState(() {
info.addAll(value);
});
} );
super.initState();
}
UserAccountsDrawerHeader(
accountName: Text("here i want to show the value of the json or request"),
accountEmai: Text("here i want to show the value of the json or request too")
),
}
-------------------
class InfoUsuarioInicialServices{
Future MostrarInfoInicialUser() async{
Map<String, String> headers = {
'Content-Type':'application/json;charset=UTF-8',
'Charset':'utf-8'
};
var Url= Uri.parse("http://");
final response = await http.get((Url),headers: headers);
print(response.body);
return productInfoUsuarioInicialromJson(response.body);
}
}
---------------------
List productInfoUsuarioInicialromJson(String str) => List<InfoInicialUserModel>.from(json.decode(str).map((x) => InfoInicialUserModel.fromJson(x)));// con esto hago el get
class InfoInicialUserModel{
String UsuarioPk;
String FotoUsuario;
String CorreoUsuario;
String NombreUsuario;
InfoInicialUserModel({this.UsuarioPk,this.FotoUsuario,this.NombreUsuario,this.CorreoUsuario});
factory InfoInicialUserModel.fromJson(Map<String, dynamic> parsedJson){
return InfoInicialUserModel(
UsuarioPk: parsedJson['Usuari'],
FotoUsuario:parsedJson['image'],
NombreUsuario: parsedJson['Usuario_A'],
CorreoUsuario:parsedJson['Usuario_C']
);
}
}

Answer 1

This is how I would do it:
Future GetMostrarInfoInicialUser() async {
Map<String, String> headers = {
'Content-Type': 'application/json;charset=UTF-8',
'Charset': 'utf-8'
};
var Url = Uri.parse("http://");
final response = await http.get((Url), headers: headers);
if (response.statusCode == 200) {
print(response.body);
var jsonData = json.decode(response.body);
if (jsonData == "Error") {
} else {
if (mounted) {
setState(() {
accountEmail = jsonData['accountEmail'];
accountName = jsonData['accountName'];
});
}
}
}
}
#override
void initState() {
GetMostrarInfoInicialUser();
}