The return type 'List<Menu>' isn't a 'Future<Menu>', as defined by the method 'anaMenuListeyiAl'

Question

https://paste.ubuntu.com/p/HzMF3ShspF/ i created this model class to get information from json data when page is loaded

https://paste.ubuntu.com/p/hKmNTjFwkX/ this is my function to reach my data by using menuFromJson method but now it says

The return type 'List' isn't a 'Future', as defined by the method 'anaMenuListeyiAl'. What should i do i don't know, is there someone who can help me.

Answer 1

Two things wrong here: First, your method Future anaMenuListeyiAl() is a future that try to return a single menu an you want to make that return a list instead so change :

Future<Menu> anaMenuListeyiAl()async {

to

Future<List<Menu>> anaMenuListeyiAl()

Then, as i said, your method return a future so you have to await for it or use it in a futurebuilder.

List<Menu> menuList = await anaMenuListeyiAl();

or if in a initstate:

anaMenuListeyiAl().then((menuList){
 print(menuList);
});

UPDATE CODE:

This is the right function:

  Future<List<Menu>> anaMenuListeyiAl() async{
List<Menu> menuList;
final response = await http.post(
    global.apiUrl + global.anaMenuListe,
    headers: {"Content-type": "application/json"},
    body: json.decode({
      "key": "${global.key}", 
      "islem_kodu": "00X"
    }));
if(response.statusCode==200){
 menuList = menuFromJson(response.body);
}else{
 print("Unathorized");
}

return menuList;
}