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Nextended.ResponseFilters.AspNetCore ​

📚 Full API reference — every public type and member, generated from the compiled assembly.

ASP.NET Core adapter for Nextended.ResponseFilters — registers the pipeline as a global IAsyncResultFilter and replays structural edits against the serialized JSON tree. NuGet

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Installation ​

bash
dotnet add package Nextended.ResponseFilters.AspNetCore

ASP.NET Core adapter for Nextended.ResponseFilters. Wires the response-filter pipeline into MVC as a global IAsyncResultFilter — every ObjectResult.Value runs through the configured filters before serialization.

Installation ​

bash
dotnet add package Nextended.ResponseFilters.AspNetCore

Quick Start ​

Define a filter (see Nextended.ResponseFilters for the full API):

csharp
public class OrderResponseFilter : ResponseFilter<OrderDto>
{
    public OrderResponseFilter()
    {
        Nullify(x => x.TotalCost).Unless(WhenContext(ctx =>
            ctx.Services.GetRequiredService<ICurrentUser>().IsInRole("Finance")));
    }
}

Wire it up once in Program.cs:

csharp
builder.Services.AddNextendedResponseFilters(new[]
{
    typeof(OrderResponseFilter).Assembly
});

That's it — every controller that returns an OrderDto (or anything containing one) now ships through the pipeline before serialization.

What it does ​

HTTP request
  ↓
[ … middleware … ]
  ↓
Controller action → ObjectResult { Value = OrderDto }
  ↓
ResponseFilterResultFilter (IAsyncResultFilter)
  → IResponseFilterPipeline.ProcessAsync(value, ctx)
      → walks the graph, applies registered filters
  ↓
JSON serializer
  ↓
HTTP response

The result filter is registered globally via MvcOptions.Filters.AddService<ResponseFilterResultFilter>(). Failures inside the pipeline are caught and logged — a buggy rule cannot 500 a request.

Notes ​

  • The IResponseFilterContext handed to predicates has HttpContext.RequestServices and HttpContext.RequestAborted pre-wired.
  • Filter scope follows the request scope by default. Override via the lifetime parameter of AddNextendedResponseFilters if needed.
  • If you also use ABP / FluentValidation / OData — the filter sits after model binding and before serialization, so it composes cleanly with all of them.

Supported frameworks ​

  • net8.0
  • net9.0
  • net10.0

Dependencies ​

  • Nextended.ResponseFilters