simple node weather app

app-async.js

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

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

const encodedAddress = encodeURIComponent(argv.a);

async function geocoder(encodedAddress) {
  const googleKey = 'add-key';

  try {
    const geocodeUrl = `https://maps.googleapis.com/maps/api/geocode/json?address=${encodedAddress}&key=${googleKey}`;
    const geocodeData = await axios.get(geocodeUrl);
    return geocodeData;
  } catch(e) {
    console.log('Throwing error from geocoder.');
    throw new Error(e);
  }
}

async function weatherForecast(lat, lng) {
  const darkskyKey = 'add key'

  try {
    const weatherUrl = `https://api.darksky.net/forecast/${darkskyKey}/${lat},${lng}`
    const weatherData = await axios.get(weatherUrl);
    return weatherData;
  } catch(e) {
    console.log('Error in weather function');
    throw new Error(e);
  }
}

async function execute(encodedAddress) {
  try {
    const geocodeData = await geocoder(encodedAddress);
    const { lat, lng } = geocodeData.data.results[0].geometry.location;
    const weatherData = await weatherForecast(lat, lng);

    console.log(JSON.stringify(weatherData.data, undefined, 2));
  } catch(e) {
    console.log('Error in call.');
    console.log(e);
  }
}

execute(encodedAddress);

app.js

const axios = require('axios');
const yargs = require('yargs');
const googleKey = 'add key';
const darkskyKey = 'add key'

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

const encodedAddress = encodeURIComponent(argv.a);
const geocodeUrl = `https://maps.googleapis.com/maps/api/geocode/json?address=${encodedAddress}&key=${googleKey}`

axios.get(geocodeUrl).then((response) => {
  const lat = response.data.results[0].geometry.location.lat;
  const lng = response.data.results[0].geometry.location.lng;
  const weatherUrl = `https://api.darksky.net/forecast/${darkskyKey}/${lat},${lng}`
  return axios.get(weatherUrl);
}).then((response) => {
  console.log(JSON.stringify(response.data, undefined, 2));
}).catch((e) => {
  console.log(e);
});

package.json

{
  "name": "weather-app",
  "version": "1.0.0",
  "description": "",
  "main": "app.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "axios": "^0.18.0",
    "yargs": "^11.0.0"
  }
}