83 lines
2.0 KiB
C#
83 lines
2.0 KiB
C#
#define SECONDARY// PRIMARY
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#if PRIMARY
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// <snippet_1>
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.SignalR;
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var builder = WebApplication.CreateBuilder(args);
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builder.Services.AddKeyedSingleton<ICache, BigCache>("big");
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builder.Services.AddKeyedSingleton<ICache, SmallCache>("small");
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builder.Services.AddControllers();
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var app = builder.Build();
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app.MapGet("/big", ([FromKeyedServices("big")] ICache bigCache) => bigCache.Get("date"));
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app.MapGet("/small", ([FromKeyedServices("small")] ICache smallCache) =>
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smallCache.Get("date"));
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app.MapControllers();
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app.Run();
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public interface ICache
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{
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object Get(string key);
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}
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public class BigCache : ICache
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{
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public object Get(string key) => $"Resolving {key} from big cache.";
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}
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public class SmallCache : ICache
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{
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public object Get(string key) => $"Resolving {key} from small cache.";
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}
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[ApiController]
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[Route("/cache")]
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public class CustomServicesApiController : Controller
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{
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[HttpGet("big-cache")]
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public ActionResult<object> GetOk([FromKeyedServices("big")] ICache cache)
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{
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return cache.Get("data-mvc");
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}
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}
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public class MyHub : Hub
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{
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public void Method([FromKeyedServices("small")] ICache cache)
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{
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Console.WriteLine(cache.Get("signalr"));
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}
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}
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// </snippet_1>
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#endif
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#if SECONDARY
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// <snippet_2>
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var builder = WebApplication.CreateBuilder(args);
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builder.Services.AddKeyedSingleton<MySingletonClass>("test");
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builder.Services.AddKeyedScoped<MyScopedClass>("test2");
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var app = builder.Build();
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app.UseMiddleware<MyMiddleware>();
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app.Run();
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internal class MyMiddleware
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{
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private readonly RequestDelegate _next;
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public MyMiddleware(RequestDelegate next,
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[FromKeyedServices("test")] MySingletonClass service)
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{
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_next = next;
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}
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public Task Invoke(HttpContext context,
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[FromKeyedServices("test2")]
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MyScopedClass scopedService) => _next(context);
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}
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// </snippet_2>
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#endif
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