Use next-basics package.

pages/api/account/[id].js

@@ -1,6 +1,6 @@
 import { getAccountById, deleteAccount } from 'queries';
 import { useAuth } from 'lib/middleware';
-import { methodNotAllowed, ok, unauthorized } from 'lib/response';
+import { methodNotAllowed, ok, unauthorized } from 'next-basics';
 
 export default async (req, res) => {
   await useAuth(req, res);

pages/api/account/index.js

@@ -1,7 +1,6 @@
+import { ok, unauthorized, methodNotAllowed, badRequest, hashPassword } from 'next-basics';
 import { getAccountById, getAccountByUsername, updateAccount, createAccount } from 'queries';
 import { useAuth } from 'lib/middleware';
-import { hashPassword } from 'lib/crypto';
-import { ok, unauthorized, methodNotAllowed, badRequest } from 'lib/response';
 
 export default async (req, res) => {
   await useAuth(req, res);

pages/api/account/password.js

@@ -1,7 +1,13 @@
 import { getAccountById, updateAccount } from 'queries';
 import { useAuth } from 'lib/middleware';
-import { badRequest, methodNotAllowed, ok, unauthorized } from 'lib/response';
-import { checkPassword, hashPassword } from 'lib/crypto';
+import {
+  badRequest,
+  methodNotAllowed,
+  ok,
+  unauthorized,
+  checkPassword,
+  hashPassword,
+} from 'next-basics';
 
 export default async (req, res) => {
   await useAuth(req, res);