Start Debugging

ASP.NET Core

122 posts · Page 12 of 13

2026-04-28 aspnetcore identity authentication

How to implement refresh tokens in ASP.NET Core Identity

Two working paths in .NET 11: the built-in MapIdentityApi /refresh endpoint, and a custom JWT setup with refresh token rotation, family tracking, and reuse detection.

2026-04-28 azure dotnet dotnet-11

How to upload a large file with streaming to Azure Blob Storage

Upload multi-GB files to Azure Blob Storage from .NET 11 without loading them into memory. BlockBlobClient.UploadAsync with StorageTransferOptions, MultipartReader for ASP.NET Core uploads, and the buffering traps that put your payload on the LOH.

2026-04-27 csharp dotnet dotnet-11

How to use Native AOT with ASP.NET Core minimal APIs

Configure a Minimal API for Native AOT with generated JSON metadata. Understand builder choices, deployment toolchains, warnings and feature limitations.

2026-04-26 csharp dotnet dotnet-11

How to add a global exception filter in ASP.NET Core 11

A complete guide to global exception handling in ASP.NET Core 11: why IExceptionFilter is the wrong tool, how IExceptionHandler and UseExceptionHandler work together, ProblemDetails responses, multi-handler chains, and the .NET 10 diagnostics suppression breaking change.

2026-04-24 aspnetcore dotnet dotnet-11

How to stream a file from an ASP.NET Core endpoint without buffering

Serve large files from ASP.NET Core 11 without loading them into memory. Three tiers: PhysicalFileResult for on-disk files, Results.Stream for arbitrary streams, and Response.BodyWriter for generated payloads -- with code for each.

2026-04-21 dotnet aspnetcore security

.NET 10.0.7 Ships Out-of-Band to Fix CVE-2026-40372 in ASP.NET Core Data Protection

A HMAC validation flaw in Microsoft.AspNetCore.DataProtection 10.0.0 through 10.0.6 lets attackers forge ciphertexts. .NET 10.0.7 is the mandatory fix.

2026-04-20 dotnet-11 aspnetcore kestrel

Kestrel starts processing HTTP/3 requests before the SETTINGS frame in .NET 11 Preview 3

.NET 11 Preview 3 lets Kestrel serve HTTP/3 requests before the peer's control stream and SETTINGS frame arrive, shaving handshake latency off the first request on every new QUIC connection.

2026-04-16 blazor aspnetcore dotnet-11

Blazor Virtualize Finally Handles Variable-Height Items in .NET 11

ASP.NET Core in .NET 11 Preview 3 teaches the Virtualize component to measure items at runtime, fixing the spacing and scroll jitter that uniform-height assumptions caused.

2026-04-13 blazor aspnetcore dotnet-11

Blazor SSR Finally Gets TempData in .NET 11

ASP.NET Core in .NET 11 Preview 2 brings TempData to Blazor static server-side rendering, enabling flash messages and Post-Redirect-Get flows without workarounds.

2026-04-12 aspnetcore dotnet-11 opentelemetry

ASP.NET Core 11 Ships Native OpenTelemetry Tracing: Drop the Extra NuGet Package

ASP.NET Core in .NET 11 Preview 2 adds OpenTelemetry semantic attributes directly to HTTP server activity, removing the need for OpenTelemetry.Instrumentation.AspNetCore.