How to avoid using await key in dart Map by foreach function

You can also use Future.forEach with a map like this :

await Future.forEach(myMap.entries, (MapEntry entry) async {
  await myAsyncFunc();          
});
callFunc();

Use a for loop over Map.entries instead of forEach. Provided you are in an async function, await-ing in the body of a for loop will pause the iteration. The entry object will also allow you to access both the key and value.

Future<void> myFunction() async {
  for (var entry in myMap.entries) {
    await myAsyncFunction(entry.key, entry.value);
  }
  callFunc();
}