added some function for app..

resources/assets/js/views/modules/item.js

@@ -70,6 +70,36 @@ const app = new Vue({
     },
 
     methods: {
+        addToCart(alias, subscription_type) {
+            let add_to_cart_promise = Promise.resolve(axios.get(url + '/apps/' + alias + '/' + subscription_type +'/add'));
+
+            add_to_cart_promise.then(response => {
+                if (response.data.success) {
+                    this.$notify({
+                        message: response.data.message,
+                        timeout: 0,
+                        icon: "fas fa-bell",
+                        type: 'success'
+                    });
+                }
+
+                if (response.data.error) {
+                    this.installation.status = 'exception';
+                    this.installation.html = '<div class="text-danger">' + response.data.message + '</div>';
+                }
+
+                // Set steps
+                if (response.data.data) {
+                    this.installation.steps = response.data.data;
+                    this.installation.steps_total = this.installation.steps.length;
+
+                    this.next();
+                }
+            })
+            .catch(error => {
+            });
+        },
+
         onChangeCategory(category) {
             if (!category.length) {
                 return;