const chatRouter = require('express').Router(); module.exports = chatRouter; const { users, chats, getUserFromDB, getChatFromDB } = require('../db'); chatRouter.get('/:id1/:id2', (req, res) => { const { id1, id2 } = req.params; const chat = getChatFromDB(id1, id2); if (chat) { res.status(200).send({chat}); } else { res.status(404).send({message: 'Chat was not found'}); } })