From 6d9f6b675e3e213640b9460c4221f029f68006c2 Mon Sep 17 00:00:00 2001
From: Luis Deschamps Rudge <luis@luisrudge.net>
Date: Mon, 24 Sep 2018 10:59:19 -0300
Subject: [PATCH] create jwksClient in the constructor

---
 src/auth/OAUthWithIDTokenValidation.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/auth/OAUthWithIDTokenValidation.js b/src/auth/OAUthWithIDTokenValidation.js
index 3d8c66a06..b9833f948 100644
--- a/src/auth/OAUthWithIDTokenValidation.js
+++ b/src/auth/OAUthWithIDTokenValidation.js
@@ -35,6 +35,9 @@ var OAUthWithIDTokenValidation = function(oauth, options) {
   this.clientSecret = options.clientSecret;
   this.domain = options.domain;
   this.supportedAlgorithms = options.supportedAlgorithms || ['HS256', 'RS256'];
+  this._jwksClient = jwksClient({
+    jwksUri: 'https://' + options.domain + '/.well-known/jwks.json'
+  });
 };
 
 /**
@@ -57,9 +60,7 @@ OAUthWithIDTokenValidation.prototype.create = function(params, data, cb) {
         if (header.alg === 'HS256') {
           return callback(null, Buffer.from(_this.clientSecret, 'base64'));
         }
-        jwksClient({
-          jwksUri: 'https://' + _this.domain + '/.well-known/jwks.json'
-        }).getSigningKey(header.kid, function(err, key) {
+        _this._jwksClient.getSigningKey(header.kid, function(err, key) {
           if (err) {
             return callback(err);
           }