Native HTTP Request Module

request.js

// request('https://www.google.com').then(console.log)
const https = require('https')
const http = require('http')
const { URL } = require('url')

const requesters = {
  'http:': http,
  'https:': https
}

const request = (url, options = {}) => {
  const {
    method = 'GET'
  } = options

  if (!http.METHODS.includes(method.toUpperCase())) {
    return Promise.reject(Error(`INVALID METHOD: ${method.toUpperCase()}`))
  }

  url = new URL(url)
  const protocol = requesters[url.protocol]
  if (!protocol) {
    return Promise.reject(Error(`INVALID PROTOCOL: ${url.protocol}`))
  }

  return new Promise((resolve, reject) => {
    const {
      body,
      ...reqOptions
    } = options

    const req = protocol.request(url, { ...reqOptions, method }, (res) => {
      res.resume()
      res.on('end', () => {
        if (res.complete) {
          resolve(res)
        } else {
          reject(Error('REQUEST NOT COMPLETED'))
        }
      })
    })

    req.on('error', reject)
    if (body) {
      req.write(body)
    }
    req.end()
  })
}

module.exports = request