BlueprintSoftware.HttpBinder

Source-generated request binding for ASP.NET Core Minimal APIs.

<PackageReference Include="BlueprintSoftware.HttpBinder" Version="1.0.0" />

Query Example

Bind /search?term=blueprint&page=2.

using BlueprintSoftware.HttpBinder;

app.MapGet("/search", (SearchQuery query) => Results.Ok(query));

[HttpBinder(HttpBinderType = HttpBinderType.Query)]
public partial class SearchQuery
{
    public string? Term { get; set; }
    public int Page { get; set; }
}

Route + Query Example

Bind /users/42?includeInactive=true.

using BlueprintSoftware.HttpBinder;

app.MapGet("/users/{id:int}", (UserRequest request) => Results.Ok(request));

[HttpBinder(HttpBinderType = HttpBinderType.Query)]
public partial class UserRequest
{
    [BindFrom(HttpBinderType.Route)]
    public int Id { get; set; }

    public bool IncludeInactive { get; set; }
}

Form Example

Bind posted form fields and files.

using BlueprintSoftware.HttpBinder;

app.MapPost("/uploads", (UploadRequest request) => Results.Ok(request.File.FileName));

[HttpBinder] // Defaults to HttpBinderType.Form
public partial class UploadRequest
{
    public string? Title { get; set; }
    public IFormFile File { get; set; } = null!;
}

Property Names

Use Name when HTTP names do not match C# names.

[HttpBinder(HttpBinderType = HttpBinderType.Query)]
public partial class PagedSearch
{
    [BindFrom(HttpBinderType.Query, Name = "q")]
    public string? SearchTerm { get; set; }

    [BindFrom(HttpBinderType.Query, Name = "page_size")]
    public int PageSize { get; set; }
}

Ignore Properties

[HttpBinder(HttpBinderType = HttpBinderType.Query)]
public partial class ReportRequest
{
    public int Year { get; set; }

    [BindFromIgnore]
    public string? InternalTraceId { get; set; }
}

Supported

• .NET 10 apps
• int, bool, double, long, Guid, DateTime, DateTimeOffset
• nullable primitives
• string
• enums
• arrays and List<T>
• form-bound complex objects
• form-bound IFormFile, IFormFileCollection, and List<IFormFile>

Diagnostics

These produce build diagnostics:

• dictionary properties
• nested collections like List<List<T>>
• complex objects from query or route
• complex objects without parameterless constructors
• files from query or route
• [BindFromIgnore] combined with another binding attribute

Release

Create a GitHub release with tag format:

blueprintsoftware-httpbinder-v1.0.0

The release workflow publishes to NuGet.org using NUGET_API_KEY.

Contributing

Please see the Contributing guidlines