app-promise.js

const yargs = require('yargs');
const axios = require('axios');




const argv = yargs
  .options({
    a: {
      demand: true,
      alias: 'address',
      describe: 'Address to fetch weather for',
      string: true
    }
})
  .help()
  .alias('help', 'h')
  .argv;


  var encodedAddress = encodeURIComponent(argv.address);

  var geocodeUrl = `https://maps.googleapis.com/maps/api/geocode/json?address=${encodedAddress}`;

  axios.get(geocodeUrl).then((response)=>{
    if(response.data.status === 'ZERO_RESULTS'){
      throw new Error('Unable to fine the address');
    }
    var lat = response.data.results[0].geometry.location.lat;
    var long = response.data.results[0].geometry.location.lng;
    var weatherUrl = `https://api.darksky.net/forecast/05bb932da2b9602c60b441d904f04a4e/${lat},${long}`
    console.log(response.data.results[0].formatted_address);
    return axios.get(weatherUrl);
  }).then((response)=>{
    var temperature = response.data.currently.temperature;
    var apparentTemperature = response.data.currently.apparentTemperature
    console.log(`It is currently ${temperature}. It feels like ${apparentTemperature}`);

  }).catch((e) => {
    if(e.code === 'ENOTFOUND'){
      console.log('Unable to connect to API Servers');
    }else{
      console.log(e.message);
    }
  });