private static async Task <object> ExecuteMiddlewareAsync(
ResolverTask resolverTask,
IErrorHandler errorHandler)
{
object result = null;
try
{
if (!resolverTask.FieldSelection.Field.IsIntrospectionField &&
resolverTask.HasMiddleware)
{
result = await ExecuteDirectiveMiddlewareAsync(
resolverTask).ConfigureAwait(false);
}
else
{
result = await ExecuteFieldMiddlewareAsync(
resolverTask).ConfigureAwait(false);
}
if (result is IError error)
{
return(errorHandler.Handle(error));
}
else if (result is IEnumerable <IError> errors)
{
return(errorHandler.Handle(errors));
}
else
{
return(result);
}
}
catch (QueryException ex)
{
return(errorHandler.Handle(ex.Errors));
}
catch (Exception ex)
{
ResolverDiagnosticEvents.ResolverError(
resolverTask.ResolverContext,
ex);
return(errorHandler.Handle(ex, error => error
.WithPath(resolverTask.Path)
.WithSyntaxNodes(resolverTask.FieldSelection.Selection)));
}
}
private static async Task <object> ExecuteMiddlewareAsync(
ResolverTask resolverTask,
CancellationToken cancellationToken)
{
object result = null;
try
{
if (!resolverTask.FieldSelection.Field.IsIntrospectionField &&
resolverTask.HasMiddleware)
{
result = await ExecuteDirectiveMiddlewareAsync(
resolverTask,
cancellationToken);
}
else
{
result = await ExecuteFieldMiddlewareAsync(
resolverTask,
cancellationToken);
}
}
catch (QueryException ex)
{
result = ex.Errors;
}
catch (Exception ex)
{
ResolverDiagnosticEvents.ResolverError(
resolverTask.ResolverContext,
ex);
result = resolverTask.CreateError(ex);
}
return(result);
}
