Trigger form submit automatically on partial/controller load - angularjs

Question

I have a user log into my AngularJS app and once they do a http.get retreives a dataset with some key values. One of those is a key that I need to post to a iframe to get it queued up for the right user (based on the key). Thus far I have this and it is not working.
HTML:
<form name="watchLiveForm" action="{{testingUrl}}" target="watch-live" method="post" ng-submit="controllsubmit()">
<label for="key">Company Software Key:</label>
<input type="text" name="key" id="key" ng-model="key">
<input type="submit">
</form>
<iframe name="watch-live" ng-src="{{testingUrl}}" width="100%" height="600"> </iframe>
Controller:
app = angular.module('angularWebApp.indexController', []);
app.controller('indexController', function($scope, $http, $rootScope, $sce) {
$scope.controllsubmit = function() {
console.log("I was called!");
};
if($scope.user !== undefined) {
if($scope.user.software_key.constructor === Array) {
$http.get('http://URL/api/' + $scope.user.software_key[1] + '/remotes').
success(function(data) {
if(data.id === 'error') {
console.log(data);
} else {
$scope.machineList = data;
$scope.key = $scope.user.software_key[1];
console.log($scope.user.software_key[1]);
console.log($scope.key);
$scope.testing = 'http://URL/settings';
$scope.testingUrl = $sce.trustAsResourceUrl($scope.testing);
}
}).
error(function(data) {
alert(data);
});
}
}
});
Directive:
angular.module('angularWebApp.indexDirectives', [])
.directive('form', function() {
return {
require: 'form',
restrict: 'A',
link: function(scope, element, attributes) {
var scopa = element.scope();
if (attributes.name && scopa[attributes.name]) {
scopa[attributes.name].$submit = function() {
// Parse the handler of submit & execute that.
var fn = $parse(attr.ngSubmit);
$scope.$apply(function() {
fn($scope, {$event: e});
});
};
}
}
};
});
After the user is logged in I call a http.get and obtain the software_key which I pass to the form (works). It just seems that getting the form to automatically submit is the issue as I want to made the inputs hidden eventually so they will not see the form as they do now. Any help is greatly appreciated!