Call Google Geocoding API to get latitude and longitude of a given address

config.js

module.exports = {
  googleApiKey: 'INSERT_YOUR_KEY_HERE'
}

geocodingQuery.js

const { googleApiKey } = require('./config')
const axios = require('axios')

/**
 * Query Google Geocoding API to get latitude&longitude from address
 *
 * Usage Example:
 *  geocodingQuery('1 place du Capitole', 'Toulouse')
 *    .then(({ lat, lng }) => {
 *      // do something with lat&lng
 *    })
 *
 * @param {string} address street address in the city
 * @param {string} city city
 */
const geocodingQuery = (address, city) => {
  const geocoderQuery = encodeURIComponent(`${address} ${city}`.replace(/ /g, '+'))
  return axios.get(`https://maps.googleapis.com/maps/api/geocode/json?address=${geocoderQuery}&key=${googleApiKey}`)
    .then(res => res.data)
    .then(json => {
      if (json.results.length === 0) {
        return null
      }
      let lat = json.results['0'].geometry.location.lat
      let lng = json.results['0'].geometry.location.lng
      return {lat, lng}
    })
}

module.exports = geocodingQuery