JavaScript Generators

index.js

let https = require('https')

const httpGetAsync = (url, callback) => {
  return https.get(url,
    (response) => {
      var body = ''
      response.on('data', (d) => {
        body += d
      })
      response.on('end', () => {
        let parsed = JSON.parse(body)
        callback(parsed)
      })
    }
  )
}

// httpGetAsync('https://www.reddit.com/r/pics/.json', (picJson) => {
//   console.log(picJson.data.children[0].data.url)
//   httpGetAsync(picJson.data.children[0].data.url+'.json', (data) => {
//    console.log(data)
//   })
// })

const request = (url) => {
  httpGetAsync(url, (response) => {
    generator.next(response)
  })
}

const main = function* () {
  let pictureJson = yield request('https://www.reddit.com/r/pics/.json')
  let firstPictureData = yield request(pictureJson.data.children[0].data.url + '.json')
  console.log(firstPictureData)
}

let generator = main()
generator.next()