How to stop/break in the middle of chained promises

Question

I have a chain of $http calls to server. If one call fails I want to display notification to user and stop the chain. At first I thought I can use the $q.reject to stop the

Answer 1

This is my conclusion after reading the link provided by @bmceldowney:

The flow will always go to the next then, so in order to stop, don't provide the next then on the path / promise that needs to stop, and put the next then only on the path / promise that needs to continue.

In my case I don't want the chain to continue after receiving error on the first promise, so the next then should be appended on the second promise, not on the first then:

d0.promise.then(
    function(response) {
        // ...
        return d1.promise.then(     // append the next then here ...
            // ...
        ).catch (
            // ...
        ).finally(
            // ...
        );
    }
).catch (
    // ...
).finally(
    // ...
);                                  // ... instead of here

angular.module("MyModule", []).controller("MyCtrl", ["$scope", "$q", "$timeout",
    function($scope, $q, $timeout) {
        $scope.result = [];

        var d0 = $q.defer();
        $timeout(function() { d0.reject(); }, 1000);
        
        d0.promise.then(
            function(response) {
                $scope.result.push("d0 successful");

                var d1 = $q.defer();
                $timeout(function() { d1.reject(); }, 1000);
                
                return d1.promise.then(
                    function(response) { $scope.result.push("d1 successful"); }
                ).catch (
                    function(response) { $scope.result.push("d1 failed"); }
                ).finally(
                    function() { $scope.result.push("finally2"); }
                );
            }
        ).catch (
            function(response) { $scope.result.push("d0 failed"); }
        ).finally(
            function() { $scope.result.push("finally1"); }
        );
    }
]);

  
result:
  
{{msg}}