Menene ASP.NET Core da middleware pipeline naje?

Question

Accepted Answer

**ASP.NET Core** shine sabon, mai yawa-tumbuka, high-performance web framework don gina web apps da APIs tare da C#. Babbar ra'ayi shine **middleware pipeline** — sararin alaƙa mai daidaitawa na abubuwan da kowannen ɗaya ke aiki da HTTP request/response, yana shawo kan abubuwan da suka shiga duka, kamar auth, logging, da routing.

## Wacce ASP.NET Core API mafi karkace

```csharp
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddScoped<IUserService, UserService>();   // register services (DI)
var app = builder.Build();

// configure the MIDDLEWARE PIPELINE (order matters!)
app.UseHttpsRedirection();
app.UseAuthentication();
app.UseAuthorization();

// map endpoints (minimal API style)
app.MapGet("/users/{id}", (int id, IUserService svc) => svc.Get(id));   // DI-injected
app.MapPost("/users", (User user, IUserService svc) => svc.Create(user));

app.Run();
```

## The middleware pipeline

```text
Request →  [Logging] → [HTTPS] → [Auth] → [Routing] → [Endpoint]
Response ← [Logging] ← [HTTPS] ← [Auth] ← [Routing] ← [Endpoint]

Each middleware can:
  ✓ process the request, then call next() to pass it on
  ✓ process the response on the way back
  ✓ SHORT-CIRCUIT (return a response without calling next — e.g. block unauthorized)
ORDER MATTERS — e.g. UseAuthentication must come before UseAuthorization.
```

The pipeline sararin alaƙa ne mai tsari na middleware da ke lullubare request. Kowannen sassa yana shawo kan bahagi (HTTPS, auth, logging, routing) kuma yana ba da iko gida — ko yanakewa. The **tsari yana da mahimmanci** (auth kafin authorization, da sauransu).

## Custom middleware da integrated features

```csharp
app.Use(async (context, next) =>
{
    // before: process the request (logging, timing, etc.)
    await next();
    // after: process the response
});
```

```text
ASP.NET Core integrates: built-in DI, configuration, logging, routing, model binding,
validation, auth, and is high-performance (one of the fastest web frameworks).
Styles: Minimal APIs (concise) and Controllers (MVC, structured).
```

## Me yasa ya zama mahimmanci

ASP.NET Core shine babbar framework don gina web applications da APIs tare da C#, kuma babbar dalili gida C#/.NET ana amfani da shi don back-end development — saboda haka fahimtar sa (kuma musamman middleware pipeline naje) ita ce mahimmancin ilmin matakin damatarwa don sabon C# web development.

ASP.NET Core yana sabuwa, mai yawa-tumbuka, da **high-performance** (ɗaya daga mababan web frameworks), tare da integrated **dependency injection**, configuration, logging, routing, da sauransu.

The **middleware pipeline** babbar ra'ayi ne, mahimmanci: ita ce yadda ASP.NET Core ke sarrafa requests, azaman sararin alaƙa mai tsari na abubuwan da kowannen ɗaya ke sarrafa bahagi na gida (HTTPS redirection, authentication, authorization, logging, routing) — kuma fahimtar sa ita ce mahimmancin gida don gina da daidaita web applications a daidai.

Ma'ana, the **tsari na middleware yana da mahimmanci** (misali authentication dole ta zo kafin authorization), kuma iya yamwa ta haifi damuwa masu siri, da zawa — saboda haka fahimtar pipeline's flow (kowannen middleware yana sarrafa request, kiran next, sarrafa response, ko yanakewa) da daidaitaccen tsari ita ce mahimmanci.

Sanin yadda ake daidaita pipeline, yadda ake yin dome jihadai da DI, ayyana endpoints (Minimal APIs ko Controllers), da rubutu custom middleware ita ce abin da ake buƙata don gina ASP.NET Core applications.

Tun ASP.NET Core shine koli na C# web development kuma middleware pipeline ita ce abubuwan jaji ga yadda ya aiki (kuma tushen ba da abubuwa a lokacin daidaita jinkiri daban-daban), fahimtar framework da pipeline naje ita ce mahimmancin ilmin da ya da misali, sanadi-dansan don gina sabon, high-performance web applications da APIs a C# — babbar ikon kan baji na back-end .NET development kuma ginshikan bayani gida akan interview.