Zoho Flow custom function using Google Maps for address validation

addressValidation.deluge.js

map addressValidation(string addressString)
{
/**
	 * This snippet: https://gist.github.com/cliffordp/2654cda30ecd0029b1e617a0f7a0c6c9
	 *
	 * Pass each address parameter (address1, address2, city, state, zip, country) that you have in a comma-separated string,
	 * such as "1234 Easy Street, 55533".
	 *
	 * Will return a results map. Examples of what you could use in Zoho Flow:
	 * ${addressValidation.formattedAddress} is from API but may not include all address pieces (depends on input pieces)
	 * ${addressValidation.fullAddressFormatted} is better to use than the above except that it's in all caps. It is made up of:
	 * firstAddressLine secondAddressLine, cityStateZipAddressLine (no space before comma if empty secondAddressLine)
	 * ${addressValidation.firstAddressLine}
	 * ${addressValidation.secondAddressLine}
	 * ${addressValidation.cityStateZipAddressLine}
	 * ${addressValidation.city}
	 * ${addressValidation.state}
	 * ${addressValidation.zipCode}
	 * ${addressValidation.zipCodeExtension}
	 *
	 * @link https://share.zight.com/Z4upBK40 Example output.
	 * @link https://developers.google.com/maps/documentation/address-validation/
	 */
apiKey = '';
apiUrl = ('https://addressvalidation.googleapis.com/v1:validateAddress?key=' + apiKey);
payload = {"address":{"regionCode":"US","addressLines":{addressString}}};
headers = Map();
headers.put("Content-Type","application/json");
// Send the request
response = postUrl(apiUrl,payload.toString(),headers);
info response;
responseMap = response.toCollection();
resultMap = Map();
if(responseMap.containsKey("result"))
{
	result = responseMap.get("result");
	// Checking for 'formattedAddress'.
	if(result.containsKey("address"))
	{
		address = result.get("address");
		if(address.containsKey("formattedAddress"))
		{
			resultMap.put("formattedAddress",address.get("formattedAddress"));
		}
		else
		{
			// Bail if no formattedAddress.
			return resultMap;
		}
	}
	// Extracting 'standardizedAddress' keys.
	// @link https://developers.google.com/maps/documentation/address-validation/reference/rest/v1/TopLevel/validateAddress#uspsaddress
	if(result.containsKey("uspsData"))
	{
		uspsData = result.get("uspsData");
		if(uspsData.containsKey("standardizedAddress"))
		{
			standardizedAddress = uspsData.get("standardizedAddress");
			for each  key in standardizedAddress.keys()
			{
				resultMap.put(key,standardizedAddress.get(key));
			}
		}
	}
	// Extracting 'standardizedAddress' and constructing 'fullAddressFormatted'
	if(result.containsKey("uspsData"))
	{
		uspsData = result.get("uspsData");
		if(uspsData.containsKey("standardizedAddress"))
		{
			standardizedAddress = uspsData.get("standardizedAddress");
			fullAddressFormatted = "";
			// Constructing fullAddressFormatted
			if(standardizedAddress.containsKey("firstAddressLine"))
			{
				fullAddressFormatted = fullAddressFormatted + standardizedAddress.get("firstAddressLine");
			}
			if(standardizedAddress.containsKey("secondAddressLine"))
			{
				fullAddressFormatted = fullAddressFormatted + " " + standardizedAddress.get("secondAddressLine");
			}
			if(standardizedAddress.containsKey("cityStateZipAddressLine") && fullAddressFormatted != "")
			{
				fullAddressFormatted = fullAddressFormatted + ", ";
				fullAddressFormatted = fullAddressFormatted + standardizedAddress.get("cityStateZipAddressLine");
			}
			resultMap.put("fullAddressFormatted",fullAddressFormatted);
			// Adding other standardizedAddress components
			for each  key in standardizedAddress.keys()
			{
				resultMap.put(key,standardizedAddress.get(key));
			}
		}
	}
}
return resultMap;
}