fix(): fix defaults settings

Author: kamilmysliwiec

lib/utils/merge-defaults.util.ts

@@ -10,6 +10,7 @@ import {
   UserInputError,
 } from 'apollo-server-core';
 import { GraphQLError, GraphQLFormattedError } from 'graphql';
+import { omit } from 'lodash';
 import { GqlModuleOptions } from '../interfaces/gql-module-options.interface';
 
 const defaultOptions: GqlModuleOptions = {
@@ -22,28 +23,34 @@ export function mergeDefaults(
   options: GqlModuleOptions,
   defaults: GqlModuleOptions = defaultOptions,
 ): GqlModuleOptions {
-  if (options.playground !== undefined) {
-    // Preserve backward compatibility
-    if (options.playground !== false && process.env.NODE_ENV !== 'production') {
-      const playgroundOptions =
-        typeof options.playground === 'object' ? options.playground : undefined;
-      defaults = {
-        ...defaults,
-        plugins: [
-          ApolloServerPluginLandingPageGraphQLPlayground(
-            playgroundOptions,
-          ) as PluginDefinition,
-        ],
-      };
-    } else if (process.env.NODE_ENV === 'production') {
-      defaults = {
-        ...defaults,
-        plugins: [ApolloServerPluginLandingPageDisabled() as PluginDefinition],
-      };
-    }
+  if (
+    (options.playground === undefined &&
+      process.env.NODE_ENV !== 'production') ||
+    options.playground
+  ) {
+    const playgroundOptions =
+      typeof options.playground === 'object' ? options.playground : undefined;
+    defaults = {
+      ...defaults,
+      plugins: [
+        ApolloServerPluginLandingPageGraphQLPlayground(
+          playgroundOptions,
+        ) as PluginDefinition,
+      ],
+    };
+  } else if (
+    (options.playground === undefined &&
+      process.env.NODE_ENV === 'production') ||
+    options.playground === false
+  ) {
+    defaults = {
+      ...defaults,
+      plugins: [ApolloServerPluginLandingPageDisabled() as PluginDefinition],
+    };
   }
+
   const moduleOptions = {
-    ...defaults,
+    ...omit(defaults, 'plugins'),
     ...options,
   };
   moduleOptions.plugins = (moduleOptions.plugins || []).concat(