AngularJS ui-router resolve is undefined - angularjs

Question

I have moved from using ngRoute to ui-router. I am trying to resolve a Factory call in the route for use in the controller but it is undefined when output to the console. Here is the Factory:
'use strict';
angular.module('angular10App')
.factory('AirportService', function ($http) {
return {
getAirports: function () {
var airports = $http.get('../json/airports.json')
.then(function (response) {
console.log(response.data); //Outputs an array of objects
return response.data;
});
}
});
Here is the Route:
'use strict';
angular.module('angular10App')
.config(function ($stateProvider) {
$stateProvider
.state('selectFlights', {
url: '/select_flights',
templateUrl: 'app/selectFlights/selectFlights.html',
controller: 'SelectFlightsCtrl',
resolve: {
AirportService: 'AirportService',
airports: function (AirportService) {
return AirportService.getAirports();
}
},
});
});
and here is the controller:
'use strict';
angular.module('angular10App')
.controller('SelectFlightsCtrl', function ($scope, airports) {
$scope.selectedAirport = null;
$scope.airports = airports;
console.log($scope.airports); //undefined
});

Answer 1

Try changing your resolve block to this:
resolve: {
airports: function (AirportService) {
return AirportService.getAirports();
}
}
And modify the getAirPorts function into:
function getAirports () {
// You need to return the $http promise (or in your case, 'var airports');
return $http.get('../json/airports.json')
.then(function (response) {
console.log(response.data); //Outputs an array of objects
return response.data;
});
}