In .NET 8.0, global exception handling can be set up using middleware, similar to previous versions but with enhancements in the framework.
Here's how you can add global exception handling:
1. Create a custom middleware class:
public class GlobalExceptionMiddleware
{
private readonly RequestDelegate _next;
public GlobalExceptionMiddleware(RequestDelegate next)
{
_next = next;
}
public async Task InvokeAsync(HttpContext context)
{
try
{
await _next(context);
}
catch (Exception ex)
{
await HandleExceptionAsync(context, ex);
}
}
private Task HandleExceptionAsync(HttpContext context, Exception exception)
{
context.Response.ContentType = "application/json";
context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
var response = new
{
StatusCode = context.Response.StatusCode,
Message = "An error occurred while processing your request.",
Detailed = exception.Message
};
return context.Response.WriteAsync(JsonSerializer.Serialize(response));
}
}
2. Register the middleware in the pipeline:
In the `Program.cs` or `Startup.cs`, register the middleware:
var builder = WebApplication.CreateBuilder(args);
var app = builder.Build();
app.UseMiddleware<GlobalExceptionMiddleware>();
// Other middleware
app.UseRouting();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
});
app.Run();
Key Notes:
- The middleware catches exceptions thrown during the request pipeline.
- You can customize the response format, and add logging or other error-handling mechanisms.
- In .NET 8.0, the overall structure remains similar to previous versions, but you can take advantage of new features and improvements in the framework.
