From 066acee41fc89abbf6067a9fe1027d7ddfe322d8 Mon Sep 17 00:00:00 2001
From: MichalFrends1 <michal.nowakowski@frends.com>
Date: Tue, 21 Apr 2026 07:50:35 +0200
Subject: [PATCH 1/3] Fixed multipart upload abort logic and missing BucketName
 in cleanup

---
 Frends.AmazonS3.UploadObject/CHANGELOG.md     |  3 +++
 .../Frends.AmazonS3.UploadObject.csproj       |  2 +-
 .../UploadObject.cs                           | 27 +++++++------------
 3 files changed, 13 insertions(+), 19 deletions(-)

diff --git a/Frends.AmazonS3.UploadObject/CHANGELOG.md b/Frends.AmazonS3.UploadObject/CHANGELOG.md
index 3720809..58ac300 100644
--- a/Frends.AmazonS3.UploadObject/CHANGELOG.md
+++ b/Frends.AmazonS3.UploadObject/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+## [3.3.0] - 2025-10-17
+### Fixed
+-Fixed missing BucketName/Key in abort cleanup, simplified loop to a single abort call, and added throw to stop swallowing exceptions.
 
 ## [3.2.0] - 2025-12-29
 ### Changed
diff --git a/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject.csproj b/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject.csproj
index 518906f..fdecbb2 100644
--- a/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject.csproj
+++ b/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject.csproj
@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>net8.0</TargetFramework>
-    <Version>3.2.0</Version>
+    <Version>3.3.0</Version>
     <Authors>Frends</Authors>
     <Copyright>Frends</Copyright>
     <Company>Frends</Company>
diff --git a/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/UploadObject.cs b/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/UploadObject.cs
index c5e2f4e..9607ccb 100644
--- a/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/UploadObject.cs
+++ b/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/UploadObject.cs
@@ -259,28 +259,19 @@ private static async Task UploadMultipart(FileInfo file, Connection connection,
         }
         catch (Exception)
         {
-            ListPartsRequest listPartsRequest = new()
+            if (initResponse != null)
             {
-                UploadId = uploadRequest.UploadId
-            };
-
-            var listParts = await client.ListPartsAsync(listPartsRequest, cancellationToken);
-
-            while (listParts.Parts.Count > 0)
-            {
-                foreach (var part in listParts.Parts)
+                var abortMpuRequest = new AbortMultipartUploadRequest
                 {
-                    AbortMultipartUploadRequest abortMpuRequest = new()
-                    {
-                        BucketName = input.BucketName,
-                        Key = path,
-                        UploadId = uploadRequest.UploadId
-                    };
-                    await client.AbortMultipartUploadAsync(abortMpuRequest, cancellationToken);
-                }
+                    BucketName = input.BucketName,
+                    Key = path,
+                    UploadId = initResponse.UploadId
+                };
 
-                listParts = await client.ListPartsAsync(listPartsRequest, cancellationToken);
+                await client.AbortMultipartUploadAsync(abortMpuRequest, cancellationToken);
             }
+
+            throw;
         }
     }
 

From 4dda3c2aea05e6dd222a09b4acf015ff2dacf6fc Mon Sep 17 00:00:00 2001
From: MichalFrends1 <michal.nowakowski@frends.com>
Date: Tue, 21 Apr 2026 07:58:18 +0200
Subject: [PATCH 2/3] cr changes

---
 Frends.AmazonS3.UploadObject/CHANGELOG.md                  | 4 ++--
 .../Frends.AmazonS3.UploadObject/UploadObject.cs           | 7 +++++--
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/Frends.AmazonS3.UploadObject/CHANGELOG.md b/Frends.AmazonS3.UploadObject/CHANGELOG.md
index 58ac300..142383c 100644
--- a/Frends.AmazonS3.UploadObject/CHANGELOG.md
+++ b/Frends.AmazonS3.UploadObject/CHANGELOG.md
@@ -1,8 +1,8 @@
 # Changelog
 
-## [3.3.0] - 2025-10-17
+## [3.3.0] - 2026-04-21
 ### Fixed
--Fixed missing BucketName/Key in abort cleanup, simplified loop to a single abort call, and added throw to stop swallowing exceptions.
+- Fixed missing BucketName/Key in abort cleanup, simplified loop to a single abort call, and added throw to stop swallowing exceptions.
 
 ## [3.2.0] - 2025-12-29
 ### Changed
diff --git a/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/UploadObject.cs b/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/UploadObject.cs
index 9607ccb..aee7c56 100644
--- a/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/UploadObject.cs
+++ b/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/UploadObject.cs
@@ -259,7 +259,7 @@ private static async Task UploadMultipart(FileInfo file, Connection connection,
         }
         catch (Exception)
         {
-            if (initResponse != null)
+            try
             {
                 var abortMpuRequest = new AbortMultipartUploadRequest
                 {
@@ -270,7 +270,10 @@ private static async Task UploadMultipart(FileInfo file, Connection connection,
 
                 await client.AbortMultipartUploadAsync(abortMpuRequest, cancellationToken);
             }
-
+            catch
+            {
+                // Swallow abort errors so the original exception is rethrown below.
+            }
             throw;
         }
     }

From bba11690f769ed497f4c9d5fee0b84f200b9adb9 Mon Sep 17 00:00:00 2001
From: MichalFrends1 <michal.nowakowski@frends.com>
Date: Tue, 21 Apr 2026 12:53:13 +0200
Subject: [PATCH 3/3] set default multipart part size to 10

---
 Frends.AmazonS3.UploadObject/CHANGELOG.md                      | 2 +-
 .../Frends.AmazonS3.UploadObject/Definitions/Connection.cs     | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/Frends.AmazonS3.UploadObject/CHANGELOG.md b/Frends.AmazonS3.UploadObject/CHANGELOG.md
index 142383c..5a4ff4f 100644
--- a/Frends.AmazonS3.UploadObject/CHANGELOG.md
+++ b/Frends.AmazonS3.UploadObject/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## [3.3.0] - 2026-04-21
 ### Fixed
-- Fixed missing BucketName/Key in abort cleanup, simplified loop to a single abort call, and added throw to stop swallowing exceptions.
+- Fixed missing BucketName/Key in abort cleanup, simplified loop to a single abort call, added throw to stop swallowing exceptions and set default multipart part size to 10 MB.
 
 ## [3.2.0] - 2025-12-29
 ### Changed
diff --git a/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/Definitions/Connection.cs b/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/Definitions/Connection.cs
index 1d45c42..145da10 100644
--- a/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/Definitions/Connection.cs
+++ b/Frends.AmazonS3.UploadObject/Frends.AmazonS3.UploadObject/Definitions/Connection.cs
@@ -96,7 +96,8 @@ public class Connection
     /// Recommended part sizes typically range from 10 MB to 100 MB for optimal performance.
     /// </summary>
     /// <example>10</example>
-    public long PartSize { get; set; }
+    [DefaultValue(10)]
+    public long PartSize { get; set; } = 10;
 
     /// <summary>
     /// Enable/disable an AWS S3 access control list.