From 7b0e4dd30e499a7561f1aabefed83ef7e0ad665f Mon Sep 17 00:00:00 2001
From: Soc Sieng <socsieng@google.com>
Date: Thu, 18 Jun 2020 22:23:38 -0700
Subject: [PATCH] feat: add prefetchPaymentData integration

---
 src/lib/__mocks__/google-pay-mock.ts | 4 +---
 src/lib/button-manager.ts            | 2 ++
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/lib/__mocks__/google-pay-mock.ts b/src/lib/__mocks__/google-pay-mock.ts
index d324e53..4bb663f 100644
--- a/src/lib/__mocks__/google-pay-mock.ts
+++ b/src/lib/__mocks__/google-pay-mock.ts
@@ -45,9 +45,7 @@ class PaymentsClient {
     return document.createElement('div');
   }
 
-  prefetchPaymentData(request: google.payments.api.PaymentDataRequest): void {
-    throw new Error('Not implemented');
-  }
+  prefetchPaymentData(request: google.payments.api.PaymentDataRequest): void {}
 }
 
 window.google = {
diff --git a/src/lib/button-manager.ts b/src/lib/button-manager.ts
index d7e8686..ada3243 100644
--- a/src/lib/button-manager.ts
+++ b/src/lib/button-manager.ts
@@ -244,6 +244,8 @@ export class ButtonManager {
     if (!this.isMounted()) return;
 
     if (showButton) {
+      this.client.prefetchPaymentData(this.createLoadPaymentDataRequest(this.config));
+
       // remove hidden className
       this.setClassName(
         element,