init

modules.local/ppcp-button/resources/js/modules/UpdateCart.js

@@ -0,0 +1,39 @@
+class UpdateCart {
+
+    constructor(endpoint, nonce) {
+        this.endpoint = endpoint;
+        this.nonce = nonce;
+    }
+
+    update(onResolve, product, qty, variations) {
+        return new Promise( (resolve, reject) => {
+            fetch(
+                this.endpoint,
+                {
+                    method: 'POST',
+                    body: JSON.stringify({
+                        nonce: this.nonce,
+                        product,
+                        qty,
+                        variations
+                    })
+                }
+            ).then(
+                (result) => {
+                    return result.json();
+                }
+            ).then( (result) => {
+                    if (! result.success) {
+                        reject(result.data);
+                        return;
+                    }
+
+                    const resolved = onResolve(result.data);
+                    resolve(resolved);
+                }
+            )
+        });
+    }
+}
+
+export default UpdateCart;