public static IApplicationBuilder UseProblemDetailsExceptionHandler(this IApplicationBuilder app, IExceptionProblemDetailsFactory problemDetailsFactory = null)
{
app.UseExceptionHandler(configure =>
{
configure.Run(async context =>
{
try
{
var jsonSerializationService = app.ApplicationServices.GetRequiredService <IJsonSerializer>();
if (problemDetailsFactory == null)
{
problemDetailsFactory = GetDefaultProblemDetailsFactory();
}
var exceptionHandlerFeature = context.Features.Get <IExceptionHandlerFeature>();
var exception = exceptionHandlerFeature.Error;
// Unauthorized
if (exception.GetType() == typeof(AuthorizationException))
{
context.Response.StatusCode = (int)HttpStatusCode.Forbidden;
return;
}
// NotFound
if (exception.GetType() == typeof(ExistenceException))
{
context.Response.StatusCode = (int)HttpStatusCode.NotFound;
return;
}
// UnprocessableEntity
var problemDetails = problemDetailsFactory.Create(exception);
if (problemDetails != null)
{
var instance = problemDetails.Instance;
context.Response.StatusCode = problemDetails.Status.Value;
await context.Response.WriteJsonAsync(problemDetails, jsonSerializationService);
}
}
catch (Exception)
{
// TODO: VC: Attempt log
throw;
}
});
});
return(app);
}
public static IApplicationBuilder UseProblemDetailsExceptionHandler(this IApplicationBuilder app, IExceptionProblemDetailsFactory problemDetailsFactory = null)
{
app.UseExceptionHandler(configure =>
{
configure.Run(async context =>
{
try
{
var exceptionHandler = app.ApplicationServices.GetRequiredService <IExceptionHandler>();
var exceptionHandlerFeature = context.Features.Get <IExceptionHandlerFeature>();
var exception = exceptionHandlerFeature.Error;
await exceptionHandler.HandleAsync(context, exception);
}
catch (Exception)
{
throw;
}
});
});
return(app);
}
