refactor(EConnectClient): GetMimeType hinzufügen, um den MIME-Typ basierend auf dem Dateinamen zuzuweisen

src/Leanetec.EConnect.Infrastructure/EConnectClient.cs

@@ -1,5 +1,6 @@
 using Leanetec.EConnect.Client.Interface;
 using Leanetec.EConnect.Domain.Entities;
+using Microsoft.AspNetCore.StaticFiles;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 using System.Net.Http.Headers;
@@ -136,7 +137,8 @@ public class EConnectClient<TError> : IEConnectClient<TError> where TError :  cl
 
         // add file type
         var fileContent = new StreamContent(stream);
-        fileContent.Headers.ContentType = new MediaTypeHeaderValue("application/pdf");
+        var mimeType = GetMimeType(fileName);
+        fileContent.Headers.ContentType = new MediaTypeHeaderValue(mimeType);
 
         // Create multipart form data form
         using var form = new MultipartFormDataContent
@@ -166,4 +168,14 @@ public class EConnectClient<TError> : IEConnectClient<TError> where TError :  cl
                             : null
             };
     }
+
+    private static string GetMimeType(string fileName)
+    {
+        var provider = new FileExtensionContentTypeProvider();
+        if (!provider.TryGetContentType(fileName, out var contentType))
+        {
+            contentType = "application/octet-stream"; // fallback
+        }
+        return contentType;
+    }
 }

src/Leanetec.EConnect.Infrastructure/Leanetec.EConnect.Infrastructure.csproj

@@ -7,6 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="2.3.0" />
     <PackageReference Include="Microsoft.AspNetCore.WebUtilities" Version="8.0.19" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="8.0.2" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="8.0.1" />