nodejs stuff

asyncRequest.js

module.exports = function asyncRequest(action) {
  return async (req, res) => {
    const { status = 200, headers, body } = await action(req);

    if (body && typeof body !== "string" && typeof body !== "number") {
      res.writeHead(status, headers || { "Content-Type": "application/json" });
      return res.end(JSON.stringify(body));
    }
    if (typeof body === "undefined") {
      res.writeHead(status, headers || {});
      return res.end();
    }

    res.writeHead(status, headers || { "Content-Type": "text/plain" });
    return res.end(body);
  };
};

Controller.js

const users = require('users');
const emails = require('emails');

module.exports = {
  async login(req) {
    const id = req.param('id');
    let user;
    if(user = users.find(id)){
       const token = users.createResetToken();
       await emails.send(user, token);
    }
    
    return { status: 204 };
  }
};

minTimeToComplete.js

module.exports = async function minTimeToComplete(minTime, action) {
  return async (req) => {
    const wait = new Promise((resolve) => setTimeout(resolve, minTime));
    const [response] = await Promise.all([action(req), wait]);
    
    return response;
  };
};

routing.js

const asyncRequest = require('./asyncRequest');
const minTimeToComplete = require('./minTimeToComplete');
const Controller = require('./Controller');

//...

router.get('/login', asyncRequest(minTimeToComplete(2000, Controller.login)));

//...