D37_W4 寫作業

繼續寫 W4 作業

• HW2: 昨天不小心把第一本書的資料刪掉了，暫時紀錄一下我寫的程式碼。

const request = require('request');
const process = require('process')

const action = process.argv[2]

const API_ENDPOINT = 'https://lidemy-book-store.herokuapp.com';

if (action === 'list') {
  listBook()
} else if (action === 'read') {
  readBook(process.argv[3])
} else if (action === 'delete') {
  deleteBook(process.argv[3])
} else if (action === 'create') {
  createBook(process.argv[3])
} else if (action === 'update') {
  updateBook()
} else {
  console.log('error')
}

if (action === 'createBooks') {
  createBooks(process.argv[3], process.argv[4])
}

function listBook() {
  request('https://lidemy-book-store.herokuapp.com/books?_limit=20', 
    function (error, response, body) {
      if (error) {
        console.log('error:', error)
        return 
      }

      let obj 
      try {
        obj = JSON.parse(body)
      } catch(error) {
        console.log(error)
        return
      }
      for (let i = 0; i < obj.length; i++) {
        console.log(`${obj[i].id} ${obj[i].name}`)
      }    
    });
}

function readBook(id) {
  request('https://lidemy-book-store.herokuapp.com/books/' + id, 
    function (error, response, body) {
      if (error) {
        console.log('error:', error)
        return 
      }

      let book 
      try {
        book = JSON.parse(body)
      } catch(error) {
        console.log(error)
        return
      }
      console.log(book)
    });
}

function deleteBook(id) {
  request.delete('https://lidemy-book-store.herokuapp.com/books/' + id, 
  function (error, response, body) {
    if (error) {
      console.log('error:', error)
      return 
    }

    let book 
    try {
      book = JSON.parse(body)
    } catch(error) {
      console.log(error)
      return
    }
    console.log(book)
  });
}

function createBook(name) {
  request.post('https://lidemy-book-store.herokuapp.com/books/', 
  function (error, response, body) {
    if (error) {
      console.log('error:', error)
      return 
    }

    let book 
    try {
      book = JSON.parse(body)
    } catch(error) {
      console.log(error)
      return
    }
    console.log(book)
  });
}

function updateBook(id, name) {

}


function createBooks(name) {
  request.post({
    url: `${API_ENDPOINT}/books`,
    form: {
      name
    }
  }, (err, res) => {
    if (err) {
      return console.log('新增失敗', err);
    }
    console.log('新增成功！');
  })
}