fix broken code caused by graphql-go API updates

data/schema.go

@@ -74,10 +74,10 @@ func init() {
 				Type:        widgetConnection.ConnectionType,
 				Description: "A person's collection of widgets",
 				Args:        relay.ConnectionArgs,
-				Resolve: func(p graphql.ResolveParams) interface{} {
+				Resolve: func(p graphql.ResolveParams) (interface{}, error) {
 					args := relay.NewConnectionArguments(p.Args)
 					dataSlice := WidgetsToInterfaceSlice(GetWidgets()...)
-					return relay.ConnectionFromArray(dataSlice, args)
+					return relay.ConnectionFromArray(dataSlice, args), nil
 				},
 			},
 		},
@@ -98,8 +98,8 @@ func init() {
 			// Add you own root fields here
 			"viewer": &graphql.Field{
 				Type: userType,
-				Resolve: func(p graphql.ResolveParams) interface{} {
-					return GetViewer()
+				Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+					return GetViewer(), nil
 				},
 			},
 		},
@@ -127,5 +127,4 @@ func init() {
 	if err != nil {
 		panic(err)
 	}
-
 }

scripts/updateSchema.go

@@ -12,7 +12,7 @@ import (
 
 func main() {
 	// Save JSON of full schema introspection for Babel Relay Plugin to use
-	result := graphql.Graphql(graphql.Params{
+	result := graphql.Do(graphql.Params{
 		Schema:        data.Schema,
 		RequestString: testutil.IntrospectionQuery,
 	})