fcc 运动追踪器

exercise-tracker.js

// server.js
// where your node app starts

// init project
var express = require('express');
const bodyParser = require('body-parser');
var app = express();

app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());

const mongoose = require("mongoose");
const { Schema } = mongoose;
const mongoUrl = process.env['mongoURL'];
mongoose.connect(mongoUrl, { useNewUrlParser: true, useUnifiedTopology: true });

const userSchema = new mongoose.Schema({
  username: { type: String, required: true },
  log: []
})

const Exerice = mongoose.model('Exerice', exericeSchema);
const User = mongoose.model('User', userSchema);


// enable CORS (https://en.wikipedia.org/wiki/Cross-origin_resource_sharing)
// so that your API is remotely testable by FCC 
var cors = require('cors');
app.use(cors({ optionsSuccessStatus: 200 }));  // some legacy browsers choke on 204

// http://expressjs.com/en/starter/static-files.html
app.use(express.static('public'));

// http://expressjs.com/en/starter/basic-routing.html
app.get("/", function (req, res) {
  res.sendFile(__dirname + '/views/index.html');
});


// your first API endpoint... 
app.post('/api/users', (req, res) => {
  // console.log('users', req.body);
  const username = req.body.username;
  const newUser = new User({ username });
  newUser.save((error, savedUser) => {
    if (!error) {
      const obj = {};
      obj['username'] = savedUser.username;
      obj['_id'] = savedUser._id;
      res.json(obj)
    } else {
      res.json(error)
    }
  })

})

app.post('/api/users/:_id/exercises', (req, res) => {
  let _id = req.params._id


  let date
  if (!req.body.date) {
    date = new Date().toDateString();
  } else {
    date = new Date(req.body.date).toDateString();
  }


  const newExerice = {
    description: req.body.description,
    duration: Number(req.body.duration),
    date
  }


  User.findOneAndUpdate({ _id: _id }, { $push: { log: newExerice } }, { new: true }, (error, savedExerice) => {
    if (!error) {

      console.log("savedExerice", savedExerice)
      
      const { _id, username } = savedExerice
      const { description, duration, date } = newExerice
      const obj = { _id, username, description, duration, date };

      res.json(obj)
    } else {
      res.json(error);
    }
 })
})


app.get('/api/users', (req, res) => {
  User.find({}, (error, arrayOfUsers) => {
    res.json(arrayOfUsers)
  })
})

app.get('/api/users/:id/logs', (req, res) => {
  const _id = req.params.id;
  const obj = {};

  User.findOne({ _id }, { "__v": 0 }, (error, userData) => {
    obj.username = userData.username;
    obj._id = _id;
    obj.count = userData.log.length;


    let fromDate = new Date()
    let toDate = new Date()

    console.log("query", req.query);
    if (req.query.limit) {

      userData.log = userData.log.slice(0, req.query.limit)

    }
    if (req.query.from || req.query.to) {

      if (!!req.query.from) {
        fromDate = new Date(req.query.from)
      }
      if (!!req.query.to) {
        toDate = new Date(req.query.to)
      }

      fromDate = fromDate.getTime();
      toDate = toDate.getTime()
      userData.log = userData.log.filter((log) => {
        let exciseDate = new Date(log.date).getTime();
        return exciseDate >= fromDate && exciseDate <= toDate
      })

    }
    obj.log = userData.log
    res.json(obj)
  })
})

// listen for requests :)
var listener = app.listen(process.env.PORT, function () {
  console.log('Your app is listening on port ' + listener.address().port);
});