Question 76618 in Flutter Question posted in
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Make a get request after the first one is finished Getx – Flutter

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();
  }
Tags:

2

Answers


  1. 0

    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();
   }

  }
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  2. 0

    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.

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