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The Art of Simplicity

ASP.NET Core's [AsParameters] attribute (introduced in .NET 7) solves the long parameter list problem in minimal API endpoints. Instead of cramming many parameters into a handler signature, you can group related parameters into a plain C# class or record and bind them all at once. The attribute respects all standard binding rules ([FromRoute], [FromQuery], [FromHeader], [FromBody]), and multiple [AsParameters]-decorated objects can be used on the same handler to separate concerns like filtering and pagination. Nesting [AsParameters] inside another parameter object is not supported, so they should be kept flat at the handler level.

Cleaner Minimal API Endpoints with [AsParameters]