WebApi + ClientApp, GraphQL, Reflection

Events-WebApi/Events.WebAPI/Util/Middleware/ProblemDetailsForException.cs

@@ -0,0 +1,35 @@
+using Events.WebAPI.Util.Extensions;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Filters;
+
+namespace Events.WebAPI.Util.Middleware;
+
+public class ProblemDetailsForException : ExceptionFilterAttribute
+{
+  private readonly ILogger<ProblemDetailsForException> logger;
+
+  public ProblemDetailsForException(ILogger<ProblemDetailsForException> logger)
+  {
+    this.logger = logger;
+  }
+
+  public override void OnException(ExceptionContext context)
+  {
+    string exceptionMessage = context.Exception.CompleteExceptionMessage();
+    logger.LogError("Error 500: {0}", exceptionMessage); //TO DO: Log data from context.ActionDescriptor?      
+    logger.LogError(context.Exception.StackTrace);
+    context.ExceptionHandled = true;
+    var problemDetails = new ProblemDetails
+    {
+      Type = "https://httpstatuses.io/500",
+      Detail = exceptionMessage,
+      Title = "Internal server error",
+      Instance = context.HttpContext.TraceIdentifier
+    };
+    context.Result = new ObjectResult(problemDetails)
+    {
+      ContentTypes = { "application/problem+json" },
+      StatusCode = StatusCodes.Status500InternalServerError
+    };
+  }
+}