add asyncCall as an action parameter,

src/createAction.js

@@ -36,7 +36,7 @@ export default function createAction(definition) {
     }
 
     definition.children = definition.children || [];
-    if (definition.asyncResult){
+    if (definition.asyncResult || definition.asyncCall){
         definition.children = definition.children.concat(["completed", "failed"]);
     }
 
@@ -52,6 +52,14 @@ export default function createAction(definition) {
         _isAction: true
     }, PublisherMethods, ActionMethods, definition);
 
+
+    if(definition.asyncCall){
+        context.listen( (argument) => {
+            definition.asyncCall(argument)
+                .then(definition.children.completed)
+                .catch(definition.children.failed);
+        });
+    }
     var functor = function() {
         var triggerType = functor.sync ? "trigger" : "triggerAsync";
         return functor[triggerType].apply(functor, arguments);

test/creatingActions.spec.js

@@ -51,6 +51,13 @@ describe('Creating action', function() {
         });
     });
 
+    it("should create action with the parameter asyncCall",function(done){
+        let doLogin = () => {
+            done();
+        };
+        let actions = Reflux.createActions({login: {asyncCall: doLogin }});
+        actions.login();
+    });
     describe('Reflux.ActionMethods', function() {
 
         afterEach(function(){