Disable subscriptions by default, change how to handle the type in wrapResolvers

packages/plugins/graphql/server/bootstrap.js

@@ -31,9 +31,9 @@ module.exports = async ({ strapi }) => {
     return;
   }
 
-  const { config } = strapi.plugin('graphql');
+  const { config } = strapi.plugin('graphql').service('utils');
 
-  const path = config('endpoint', '/graphql');
+  const path = config.endpoint;
 
   const defaultServerConfig = {
     // Schema
@@ -46,7 +46,7 @@ module.exports = async ({ strapi }) => {
     }),
 
     // Validation
-    validationRules: [depthLimit(config('depthLimit'))],
+    validationRules: [depthLimit(config.depthLimit)],
 
     // Errors
     formatError: formatGraphqlError,
@@ -63,10 +63,10 @@ module.exports = async ({ strapi }) => {
     ],
   };
 
-  const serverConfig = merge(defaultServerConfig, config('apolloServer', {}));
+  const serverConfig = merge(defaultServerConfig, config.apolloServer);
 
   // Handle subscriptions
-  if (config('subscriptions', true)) {
+  if (config.subscriptions) {
     const subscriptionServer = SubscriptionServer.create(
       { schema, execute, subscribe },
       { server: strapi.server.httpServer, path }

packages/plugins/graphql/server/services/builders/utils.js

@@ -95,7 +95,7 @@ module.exports = ({ strapi }) => {
      * Apply basic transform to GQL args
      */
     transformArgs(args, { contentType, usePagination = false } = {}) {
-      const { mappers } = getService('utils');
+      const { mappers, config } = getService('utils');
       const { pagination = {}, filters = {} } = args;
 
       // Init
@@ -103,8 +103,7 @@ module.exports = ({ strapi }) => {
 
       // Pagination
       if (usePagination) {
-        const defaultLimit = strapi.plugin('graphql').config('defaultLimit');
-        const maxLimit = strapi.plugin('graphql').config('maxLimit', -1);
+        const { defaultLimit, maxLimit } = config;
 
         Object.assign(
           newArgs,

packages/plugins/graphql/server/services/content-api/index.js

@@ -5,6 +5,7 @@ const {
   makeExecutableSchema,
   addResolversToSchema,
 } = require('@graphql-tools/schema');
+const { pruneSchema } = require('@graphql-tools/utils');
 const { makeSchema } = require('nexus');
 const { prop, startsWith } = require('lodash/fp');
 
@@ -26,7 +27,7 @@ const {
 
 module.exports = ({ strapi }) => {
   const { service: getGraphQLService } = strapi.plugin('graphql');
-  const { config } = strapi.plugin('graphql');
+  const { config } = getGraphQLService('utils');
 
   const { KINDS, GENERIC_MORPH_TYPENAME } = getGraphQLService('constants');
   const extensionService = getGraphQLService('extension');
@@ -37,7 +38,7 @@ module.exports = ({ strapi }) => {
   let builders;
 
   const buildSchema = () => {
-    const isShadowCRUDEnabled = !!config('shadowCRUD', true);
+    const isShadowCRUDEnabled = !!config.shadowCRUD;
 
     // Create a new empty type registry
     registry = getGraphQLService('type-registry').new();
@@ -71,7 +72,11 @@ module.exports = ({ strapi }) => {
     // Wrap resolvers if needed (auth, middlewares, policies...) as configured in the extension
     const wrappedSchema = wrapResolvers({ schema, strapi, extension });
 
-    return wrappedSchema;
+    // Prune schema, remove unused types
+    // eg: removes registered subscriptions if they're disabled in the config)
+    const prunedSchema = pruneSchema(wrappedSchema);
+
+    return prunedSchema;
   };
 
   const buildSchemas = ({ registry }) => {

packages/plugins/graphql/server/services/content-api/wrap-resolvers.js

@@ -25,22 +25,19 @@ const introspectionQueries = [
  * @return {GraphQLSchema}
  */
 const wrapResolvers = ({ schema, strapi, extension = {} }) => {
+  const { config: graphQLConfig } = strapi.plugin('graphql').service('utils');
   // Get all the registered resolvers configuration
   const { resolversConfig = {} } = extension;
 
   // Fields filters
   const isValidFieldName = ([field]) => !field.startsWith('__');
 
-  const typesMaps = [schema.getTypeMap()];
+  const typeMap = schema.getTypeMap();
 
-  const subscriptionType = schema.getSubscriptionType();
-  if (subscriptionType) {
-    typesMaps.push(subscriptionType.getFields());
+  if (!graphQLConfig.subscriptions) {
+    delete typeMap.Subscription;
   }
 
-  typesMaps.forEach(typeMap =>
-    // Iterate over every field from every type within the
-    // schema's type map and wrap its resolve attribute if needed
   Object.entries(typeMap).forEach(([type, definition]) => {
     const isGraphQLObjectType = definition instanceof GraphQLObjectType;
     const isIgnoredType = introspectionQueries.includes(type);
@@ -117,8 +114,7 @@ const wrapResolvers = ({ schema, strapi, extension = {} }) => {
         return first(boundMiddlewares).call(null, parent, args, context, info);
       };
     }
-    })
-  );
+  });
 
   return schema;
 };

packages/plugins/graphql/server/services/utils/config.js

@@ -0,0 +1,38 @@
+'use strict';
+
+/**
+ * GraphQL config helper with consistent defaults values
+ */
+module.exports = ({ strapi }) => {
+  const { config: graphQLConfig } = strapi.plugin('graphql');
+
+  return {
+    get shadowCRUD() {
+      return graphQLConfig('shadowCRUD', true);
+    },
+
+    get subscriptions() {
+      return graphQLConfig('subscriptions', false);
+    },
+
+    get endpoint() {
+      return graphQLConfig('endpoint', '/graphql');
+    },
+
+    get defaultLimit() {
+      return graphQLConfig('defaultLimit');
+    },
+
+    get maxLimit() {
+      return graphQLConfig('maxLimit', -1);
+    },
+
+    get depthLimit() {
+      return graphQLConfig('depthLimit');
+    },
+
+    get apolloServer() {
+      return graphQLConfig('apolloServer', {});
+    },
+  };
+};

packages/plugins/graphql/server/services/utils/index.js

@@ -3,9 +3,11 @@
 const mappers = require('./mappers');
 const attributes = require('./attributes');
 const naming = require('./naming');
+const config = require('./config');
 
 module.exports = context => ({
   naming: naming(context),
   attributes: attributes(context),
   mappers: mappers(context),
+  config: config(context),
 });