Configure the button from the bootstrappers

This should give us the flexibility to overwrite default configuration option on context level

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

@@ -0,0 +1,39 @@
+import onApprove from './onApproveForPayNow.js';
+
+class CheckoutActionHandler {
+
+    constructor(config, errorHandler) {
+        this.config = config;
+        this.errorHandler = errorHandler;
+    }
+
+    configuration() {
+
+        const createOrder = (data, actions) => {
+            return fetch(this.config.ajax.create_order.endpoint, {
+                method: 'POST',
+                body: JSON.stringify({
+                    nonce: this.config.ajax.create_order.nonce,
+                    purchase_units:[]
+                })
+            }).then(function (res) {
+                return res.json();
+            }).then(function (data) {
+                if (!data.success) {
+                    //Todo: Error handling
+                    return;
+                }
+                return data.data.id;
+            });
+        }
+        return {
+            createOrder,
+            onApprove:onApprove(this),
+            onError: (error) => {
+                this.errorHandler.message(error);
+            }
+        }
+    }
+}
+
+export default CheckoutActionHandler;