Update api routes to use authenticated user

pages/api/users/register.ts

@@ -1,44 +1,18 @@
 import { NextApiRequest, NextApiResponse } from 'next';
 import { z } from 'zod';
 import ServerError from '@/config/util/ServerError';
-import nc, { NextHandler } from 'next-connect';
+import nc from 'next-connect';
 import createNewUser from '@/services/user/createNewUser';
 import CreateUserValidationSchema from '@/services/user/schema/CreateUserValidationSchema';
 import NextConnectConfig from '@/config/nextConnect/NextConnectConfig';
 import findUserByUsername from '@/services/user/findUserByUsername';
 import findUserByEmail from '@/services/user/findUserByEmail';
+import validateRequest from '@/config/zod/middleware/validateRequest';
 
 interface RegisterUserRequest extends NextApiRequest {
   body: z.infer<typeof CreateUserValidationSchema>;
 }
 
-const validateRequest =
-  ({
-    bodySchema,
-    querySchema,
-  }: {
-    bodySchema?: z.ZodSchema<any>;
-    querySchema?: z.ZodSchema<any>;
-  }) =>
-  async (req: NextApiRequest, res: NextApiResponse, next: NextHandler) => {
-    if (bodySchema) {
-      const parsed = bodySchema.safeParse(req.body);
-      if (!parsed.success) {
-        throw new ServerError('Invalid request body.', 400);
-      }
-    }
-
-    if (querySchema) {
-      const parsed = querySchema.safeParse(req.query);
-      if (!parsed.success) {
-        throw new ServerError(parsed.error.message, 400);
-      }
-      req.query = parsed.data;
-    }
-
-    next();
-  };
-
 const registerUser = async (req: RegisterUserRequest, res: NextApiResponse) => {
   const [usernameTaken, emailTaken] = await Promise.all([
     findUserByUsername(req.body.username),