𝗨𝗻𝗹𝗲𝗮𝘀𝗵𝗶𝗻𝗴 𝘁𝗵𝗲 𝗣𝗼𝘄𝗲𝗿 𝗼𝗳 𝗦𝗶𝗺𝗽𝗹𝗶𝗰𝗶𝘁𝘆: 𝗗𝗶𝘃𝗶𝗻𝗴 𝗗𝗲𝗲𝗽 𝗶𝗻𝘁𝗼 𝗔𝗦𝗣.𝗡𝗘𝗧 𝗖𝗼𝗿𝗲 𝗠𝗶𝗻𝗶𝗺𝗮𝗹 𝗔𝗣𝗜𝘀

Minimal APIs in ASP.NET Core continue to redefine how we build fast, lightweight web APIs. What started as a simple concept has quickly evolved, offering significant performance gains and a richer feature set without sacrificing their core simplicity. Let's explore some of the latest advancements that make them an even more compelling choice for modern development.

𝟭. 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗕𝗼𝗼𝘀𝘁𝘀: 𝗙𝗮𝘀𝘁𝗲𝗿 𝗮𝗻𝗱 𝗟𝗶𝗴𝗵𝘁𝗲𝗿

Minimal APIs are engineered for speed and efficiency. Recent enhancements have drastically reduced memory allocations and accelerated exception handling, making your lightweight HTTP APIs even more performant. This means quicker responses and more efficient resource utilization, especially under load.

𝗖𝗼𝗱𝗲 𝗘𝘅𝗮𝗺𝗽𝗹𝗲 (𝗜𝗺𝗽𝗹𝗶𝗰𝗶𝘁 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲):

The beauty here is that performance improvements are often under the hood. Your existing Minimal API code just runs faster!

app.MapGet("/hello", () => "Hello, Performance!");

(No change needed, the improvement is in the runtime.)

𝟮. 𝗥𝗶𝗰𝗵𝗲𝗿 𝗙𝗲𝗮𝘁𝘂𝗿𝗲𝘀: 𝗦𝗶𝗺𝗽𝗹𝗲 𝗬𝗲𝘁 𝗖𝗮𝗽𝗮𝗯𝗹𝗲

While maintaining their "minimal" philosophy, these APIs are gaining powerful capabilities. You now have improved support for OpenAPI (Swagger/documentation), robust authentication and authorization options, and more refined error handling, allowing you to build comprehensive APIs with less boilerplate.

𝗖𝗼𝗱𝗲 𝗘𝘅𝗮𝗺𝗽𝗹𝗲 (𝗢𝗽𝗲𝗻𝗔𝗣𝗜 & 𝗔𝘂𝘁𝗵𝗲𝗻𝘁𝗶𝗰𝗮𝘁𝗶𝗼𝗻):

Defining a route with a tag for OpenAPI and requiring authorization is straightforward.

app.MapGet("/securedata", () => "Sensitive Info")
.RequireAuthorization()
.WithTags("Data"); // Used by OpenAPI for grouping

𝟯. 𝗧𝘆𝗽𝗲𝗱𝗥𝗲𝘀𝘂𝗹𝘁𝘀: 𝗖𝗹𝗲𝗮𝗻 𝗮𝗻𝗱 𝗖𝗼𝗻𝗰𝗶𝘀𝗲 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗲𝘀

Say goodbye to manual status code setting! TypedResults offer a convenient and type-safe way to return HTTP responses with specific status codes. This makes your API endpoints more readable, maintainable, and less prone to errors.

𝗖𝗼𝗱𝗲 𝗘𝘅𝗮𝗺𝗽𝗹𝗲 (𝗧𝘆𝗽𝗲𝗱𝗥𝗲𝘀𝘂𝗹𝘁𝘀):

Returning a "Not Found" or "OK" response is clear and explicit.

app.MapGet("/item/{id}", (int id) =>
{
if (id == 0) return Results.NotFound("Item not found.");
return Results.Ok($"Found item {id}");
});

Minimal APIs are maturing into a powerful tool for building efficient and scalable web services.

𝗪𝗵𝗮𝘁 𝗮𝗿𝗲 𝘆𝗼𝘂𝗿 𝘁𝗵𝗼𝘂𝗴𝗵𝘁𝘀 𝗼𝗻 𝘁𝗵𝗲 𝗲𝘃𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗼𝗳 𝗠𝗶𝗻𝗶𝗺𝗮𝗹 𝗔𝗣𝗜𝘀? 𝗛𝗼𝘄 𝗮𝗿𝗲 𝘆𝗼𝘂 𝗹𝗲𝘃𝗲𝗿𝗮𝗴𝗶𝗻𝗴 𝘁𝗵𝗲𝗺 𝗶𝗻 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀? 𝗦𝗵𝗮𝗿𝗲 𝘆𝗼𝘂𝗿 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲𝘀 𝗯𝗲𝗹𝗼𝘄!