From c622102b9733b89451a5134e9e328236f88fb064 Mon Sep 17 00:00:00 2001
From: creativej <lu.jamison@gmail.com>
Date: Thu, 2 Aug 2018 13:33:36 +1000
Subject: [PATCH] Ignore __ fields in instrospection

---
 graphql/introspection/type.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/graphql/introspection/type.go b/graphql/introspection/type.go
index 9c65b7ee81..72f993f307 100644
--- a/graphql/introspection/type.go
+++ b/graphql/introspection/type.go
@@ -1,6 +1,8 @@
 package introspection
 
 import (
+	"strings"
+
 	"github.com/vektah/gqlparser/ast"
 )
 
@@ -63,6 +65,10 @@ func (t *Type) Fields(includeDeprecated bool) []Field {
 	}
 	var fields []Field
 	for _, f := range t.def.Fields {
+		if strings.HasPrefix(f.Name, "__") {
+			continue
+		}
+
 		fields = append(fields, Field{
 			Name:              f.Name,
 			Description:       f.Description,