feat(graphql): adds @default directive to graphql (#8017)

Author: mangalaman93

graphql/e2e/schema/apollo_service_response.graphql

@@ -117,6 +117,10 @@ input CustomHTTP {
 	skipIntrospection: Boolean
 }
 
+input DgraphDefault {
+	value: String
+}
+
 type Point {
 	longitude: Float!
 	latitude: Float!
@@ -199,6 +203,7 @@ directive @hasInverse(field: String!) on FIELD_DEFINITION
 directive @search(by: [DgraphIndex!]) on FIELD_DEFINITION
 directive @dgraph(type: String, pred: String) on OBJECT | INTERFACE | FIELD_DEFINITION
 directive @id(interface: Boolean) on FIELD_DEFINITION
+directive @default(add: DgraphDefault, update: DgraphDefault) on FIELD_DEFINITION
 directive @withSubscription on OBJECT | INTERFACE | FIELD_DEFINITION
 directive @secret(field: String!, pred: String) on OBJECT | INTERFACE
 directive @remote on OBJECT | INTERFACE | UNION | INPUT_OBJECT | ENUM

graphql/e2e/schema/generatedSchema.graphql

@@ -98,6 +98,10 @@ input CustomHTTP {
 	skipIntrospection: Boolean
 }
 
+input DgraphDefault {
+	value: String
+}
+
 type Point {
 	longitude: Float!
 	latitude: Float!
@@ -180,6 +184,7 @@ directive @hasInverse(field: String!) on FIELD_DEFINITION
 directive @search(by: [DgraphIndex!]) on FIELD_DEFINITION
 directive @dgraph(type: String, pred: String) on OBJECT | INTERFACE | FIELD_DEFINITION
 directive @id(interface: Boolean) on FIELD_DEFINITION
+directive @default(add: DgraphDefault, update: DgraphDefault) on FIELD_DEFINITION
 directive @withSubscription on OBJECT | INTERFACE | FIELD_DEFINITION
 directive @secret(field: String!, pred: String) on OBJECT | INTERFACE
 directive @auth(