server.js

'use strict'

const express = require('express');
const app = express();
const bodyParser = require('body-parser');

let dataModel = require('./lib/dataModel');
let id = (req) => {return req.params.id}

app.use(bodyParser.json());

let port = process.env.PORT || 8080

// Routes
let router = express.Router();
router.get('/:id', (req,res) => {
  // let id = req.params.id;
  // let ret = {};(
  // ret[id(req)] = dataModel.model[id];
  if (dataModel.model[id(req)]){
    res.send(dataModel.model[id(req)]);
  }
  else {
    res.status(400).send(`${id(req)} does not exist`);
  }
});

router.post('/:id', (req,res) => {
  // let id = req.params.id;
  if (dataModel.model[id(req)]) {
    res.status(400).send(`${id(req)} error: VALUE ALREADY EXISTS`);
  }
  else {
    dataModel.model[id(req)] = req.body;
    console.log(dataModel.model);
    res.json({message: 'Huzzah it was added!'});
  }
});

router.put('/:id', (req, res) => {
  if (!dataModel.model[req.params.id]) {
    res.status(400).send(`${req.params.id} does not exist!`);
  }
    else {
      // let id = req.params.id;
      dataModel.model[id(req)] = req.body;
      let response = {};

      console.log(dataModel.model);
      res.send(dataModel.model[id(req)]);
    }
});

router.delete('/:id', (req, res) => {
  if (!dataModel.model[req.params.id]) {
    res.status(400).send(`${req.params.id} does not exist`);
  }
  else {
    delete dataModel.model[id(req)];
    res.status(400).send(`${req.params.id} has been deleted`);

  }
});

app.use('/api', router);


app.listen(port);
console.log(`Server is listening on ${port}`);