Zoho Flow custom function to get address from Google Maps geocoding

addressToCoordinates.js

map addressToCoordinates(string addressString)
{
/**
 * This snippet: https://gist.github.com/cliffordp/068b32913ba25d1cd998507398c950c8
 *
 * Get lat/long from Google.
 * https://developers.google.com/maps/documentation/geocoding
 * 
 * CRM limits Decimal Fields to 9 digits, which is sufficient:
 * https://rapidlasso.com/2019/05/06/how-many-decimal-digits-for-storing-longitude-latitude/
 *
 * Deluge has its own available but may not be as accurate:
 * https://www.zoho.com/deluge/help/map-tasks/geocode.html
 */
geoUrl = 'https://maps.googleapis.com/maps/api/geocode/json?key=___YOUR_API_KEY___&region=us&bounds=' + zoho.encryption.urlencode('37.169071,-100.206985|33.385586,-93.966751') + '&address=' + zoho.encryption.urlencode(addressString);
// https://www.zoho.com/deluge/help/webhook/invokeurl-api-task.html
response = invokeurl
[
	url :geoUrl
	type :POST
];
//info response;
valueMap = Map();
if('OK' == response.get('status'))
{
	results = response.get('results').toCollection();
	valueMap.put('resFormattedAddress',replaceFirst(results.get('formatted_address'),', USA',''));
	valueMap.put('resLat',round(results.get('geometry').get('location').get('lat').toDecimal(),9));
	valueMap.put('resLng',round(results.get('geometry').get('location').get('lng').toDecimal(),9));
}
// In Zoho Flow, do something like this: ${addressToCoordinates.resFormattedAddress}
return valueMap;
}