Make a get request after the first one is finished Getx - flutter

Question

i want make get request after the first one finished because i need to send data from the response of first request with the body of second request to the server .. how i do this with getx
thanks
class ProductsController extends GetxController with StateMixin<Posts> {
#override
void onInit() {
getData();
super.onInit();
}
getData() async {
try {
change(null, status: RxStatus.loading());
await postsApiProvider
.getPosts()
.then((value) {
change(value, status: RxStatus.success());
});
} catch (exception) {
change(null, status: RxStatus.error(exception.toString()));
}
}
// i want this function fire after getData()
_getRelated() async {
try {
await postsApiProvider
.getRelated(
price: value.region ----> because i need access to getDate values
)
.then((value) {
});
} catch (e) {
debugPrint(e.toString());
}
}
}
I tried that method but it didn't work :
#override
void onReady() {
_getRelated();
super.onReady();
}

Answer 1

You can achieve your result by using finally. But I would suggest creating a function for that, so that in future if you want to add one more function based on second function's callback then you can easily achieve it.
Here's the example:
gloablfun()async{
await getData();
await _getRelated();
}
then you can call the global function in the onInit method:
#override
void onInit() {
gloablfun();
super.onInit();
}
By using this way, you can add more functions in the future and your code will look cleaner than before.

Answer 2

try using try with finally e.g
//a sample model which is have data
final Rx<MyModel> model = Model().obs;
#override
void onInit() {
myFunctiontocall();
super.onInit();
}
myFunctiontocall() async{
try{
// from the first function
// make a function that will have data to the model
myFirstFunctionToRun();
}finally{
// from done process in the above next is the finally
// which next to be run
// call the second function but make sure the model
// have data
thenFinallymySecondFunctiontoRun();
}
}