feat:pass other apollo server options.

History.md

@@ -1,3 +1,7 @@
+2.3.1 / 2018-12-28
+==================
+
+  * feat:pass other apollo server options. (#20)
 
 2.3.0 / 2018-10-21
 ==================

README.md

@@ -65,6 +65,24 @@ exports.graphql = {
   onPreGraphQL: function* (ctx) {},
   // 开发工具 graphiQL 路由前的拦截器，建议用于做权限操作(如只提供开发者使用)
   onPreGraphiQL: function* (ctx) {},
+  // apollo server的透传参数
+  apolloServerOptions: {
+    rootValue,
+    formatError,
+    formatResponse,
+    mocks,
+    schemaDirectives,
+    introspection,
+    playground,
+    debug,
+    validationRules,
+    tracing,
+    cacheControl,
+    subscriptions,
+    engine,
+    persistedQueries,
+    cors,
+  }
 };
 
 // 添加中间件拦截请求

app/middleware/graphql.js

@@ -44,22 +44,33 @@ module.exports = (_, app) => {
 
   return async (ctx, next) => {
     /* istanbul ignore else */
+    const {
+      onPreGraphiQL,
+      onPreGraphQL,
+      apolloServerOptions
+    } = options;
+
     if (ctx.path === graphQLRouter) {
       if (ctx.request.accepts([ 'json', 'html' ]) === 'html' && graphiql) {
-        if (options.onPreGraphiQL) {
-          await options.onPreGraphiQL(ctx);
+        if (onPreGraphiQL) {
+          await onPreGraphiQL(ctx);
         }
         return graphiqlKoa({
           endpointURL: graphQLRouter,
         })(ctx);
       }
-      if (options.onPreGraphQL) {
-        await options.onPreGraphQL(ctx);
+      if (onPreGraphQL) {
+        await onPreGraphQL(ctx);
       }
-      return graphqlKoa({
-        schema: app.schema,
-        context: ctx,
-      })(ctx);
+      const serverOptions = Object.assign(
+        {},
+        apolloServerOptions,
+        {
+          schema: app.schema,
+          context: ctx,
+        }
+      );
+      return graphqlKoa(serverOptions)(ctx);
     }
     await next();
   };