From 9d5222a91ecb1caa910d261fec7a3a2b60542512 Mon Sep 17 00:00:00 2001
From: Peter van Gulik <peter@curlybracket.nl>
Date: Wed, 25 Jan 2023 15:38:38 +0100
Subject: [PATCH] fix: the refreshFn cannot be set when refresh delegates is
 undefined

---
 packages/salesforce/src/connection/salesforceConnection.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/salesforce/src/connection/salesforceConnection.ts b/packages/salesforce/src/connection/salesforceConnection.ts
index 831fef45..fd123492 100644
--- a/packages/salesforce/src/connection/salesforceConnection.ts
+++ b/packages/salesforce/src/connection/salesforceConnection.ts
@@ -77,7 +77,9 @@ export class SalesforceConnection extends Connection {
         this.tooling['_logger'] = new JsForceLogAdapter(this.logger);
 
         // Overwrite refresh function on refresh delegate
-        this['_refreshDelegate']['_refreshFn'] = SalesforceConnection.refreshAccessToken;
+        if (this['_refreshDelegate']) {
+            this['_refreshDelegate']['_refreshFn'] = SalesforceConnection.refreshAccessToken;
+        }
     }
 
     private static refreshAccessToken(_this: SalesforceConnection, callback: (err: any, accessToken?: string, response?: any) => void) : Promise<string> {