Use next-basics package.

lib/middleware.js

@@ -1,19 +1,7 @@
+import { createMiddleware, unauthorized, badRequest, serverError } from 'next-basics';
 import cors from 'cors';
 import { getSession } from './session';
 import { getAuthToken } from './auth';
-import { unauthorized, badRequest, serverError } from './response';
-
-export function createMiddleware(middleware) {
-  return (req, res) =>
-    new Promise((resolve, reject) => {
-      middleware(req, res, result => {
-        if (result instanceof Error) {
-          return reject(result);
-        }
-        return resolve(result);
-      });
-    });
-}
 
 export const useCors = createMiddleware(cors());
 
@@ -23,7 +11,9 @@ export const useSession = createMiddleware(async (req, res, next) => {
   try {
     session = await getSession(req);
   } catch (e) {
+    // eslint-disable-next-line no-console
     console.error(e);
+
     return serverError(res, e.message);
   }