From 91ba79e6ecc18405cf7d6ac22ac5bf7c8129e093 Mon Sep 17 00:00:00 2001
From: Tyrrrz <1935960+Tyrrrz@users.noreply.github.com>
Date: Wed, 25 Jan 2023 20:51:07 +0200
Subject: [PATCH] Fix nullref in HTTP retry policy

---
 DiscordChatExporter.Core/Utils/Http.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/DiscordChatExporter.Core/Utils/Http.cs b/DiscordChatExporter.Core/Utils/Http.cs
index 9b8c3f2..a814309 100644
--- a/DiscordChatExporter.Core/Utils/Http.cs
+++ b/DiscordChatExporter.Core/Utils/Http.cs
@@ -39,8 +39,9 @@ public static class Http
                 8,
                 (i, result, _) =>
                 {
-                    // If rate-limited, use retry-after header as the guide
-                    if (result.Result.Headers.RetryAfter?.Delta is { } retryAfter)
+                    // If rate-limited, use retry-after header as the guide.
+                    // The response can be null here if an exception was thrown.
+                    if (result.Result?.Headers.RetryAfter?.Delta is { } retryAfter)
                     {
                         // Add some buffer just in case
                         return retryAfter + TimeSpan.FromSeconds(1);