Remove Node interface from Query

Author: benjie

lib/RemoveNodeInterfaceFromQueryPlugin.js

@@ -0,0 +1,15 @@
+module.exports = function RemoveNodeInterfaceFromQueryPlugin(builder) {
+  builder.hook("GraphQLObjectType:interfaces", (interfaces, build, context) => {
+    if (!context.scope.isRootQuery) {
+      return interfaces;
+    }
+    return [];
+  });
+  builder.hook("GraphQLObjectType", (obj, build, context) => {
+    if (!context.scope.isRootQuery) {
+      return obj;
+    }
+    const { isTypeOf, ...rest } = obj;
+    return rest;
+  });
+};

lib/createSchema.js

@@ -25,6 +25,7 @@ const graphileBuild = requireFrom(
 );
 
 const RenamedQueryPlugin = require("./RenamedQueryPlugin");
+const RemoveNodeInterfaceFromQueryPlugin = require("./RemoveNodeInterfaceFromQueryPlugin");
 
 const skipPlugins = [
   graphileBuild.QueryPlugin,
@@ -33,6 +34,8 @@ const skipPlugins = [
 ];
 const prependPlugins = [RenamedQueryPlugin];
 
+const appendPlugins = [RemoveNodeInterfaceFromQueryPlugin];
+
 module.exports = async (pool, schema, options) => {
   const schemas = Array.isArray(schema) ? schema : schema.split(",");
   const graphqlSchema = await createPostGraphileSchema(pool, schemas, {
@@ -44,6 +47,7 @@ module.exports = async (pool, schema, options) => {
     ...options,
     skipPlugins: [...skipPlugins, ...(options.skipPlugins || [])],
     prependPlugins: [...prependPlugins, ...(options.prependPlugins || [])],
+    appendPlugins: [...appendPlugins, ...(options.appendPlugins || [])],
   });
   return graphqlSchema;
 };