Coldfusion Functions for Google URL Shortener API

googleURL.cfc

<cfscript>
component output="false" {
	public googleURL function init(apiKey)
	description="Initialize this CFC as an object"
	{
		variables.apiKey = arguments.apiKey;
		return this;
	}
	
	public string function ShortenURL(required string url)   
	description="You can call this method to shorten a URL with goo.gl."
	{
		var httpService = new http();
		httpService.setMethod("post"); 
		httpService.setCharset("utf-8"); 
		httpService.addParam(type="header",name="Content-Type",value="application/json");
		httpService.addParam(type="body",value="{""longUrl"": ""#arguments.url#""}");
		var result = httpService.send().getPrefix();
		result = deserializejson(result.filecontent);
		return result.id;
	}
	
	public string function ExpandURL(required string url)   
	description="You can call this method to expand any goo.gl short URL."
	{
		var httpService = new http();
		httpService.setMethod("get"); 
		httpService.setCharset("utf-8"); 
		httpService.setUrl("https://www.googleapis.com/urlshortener/v1/url?key="  & variables.apiKey & "&shortUrl=" & arguments.url);
		var result = httpService.send().getPrefix();
		result = deserializejson(result.filecontent);
		return result.longUrl;
	}
	
	public struct function GetAnalytics(required string url)   
	description="Look up a short URL's analytics,"
	{
		var httpService = new http();
		httpService.setMethod("get"); 
		httpService.setCharset("utf-8"); 
		httpService.setUrl("https://www.googleapis.com/urlshortener/v1/url?key="  & variables.apiKey & "&shortUrl=" & arguments.url & "&projection=FULL");
		var result = httpService.send().getPrefix();
		result = deserializejson(result.filecontent);
		return result;
	}
}
</cfscript>

googleUrl.cfm

<!--- To use, create googleUrl.cfm and add this code --->
<cfscript>
     // Initialize goog_url.cfc as an object
     variables.googleUrlFunctions = CreateObject("component","googleURL").init(API_KEY);
     // Get Shortened Url
     variables.getShorty = variables.googleUrlFunctions.ShortenURL("http://www.thisisaverylongurl.com/that.has?awholelotofurlparameters=too");
     // Make it Long Again
     variables.sizeMatters = variables.googleUrlFunctions.ExpandURL("http://goo.gl/dF8W5");
     // See if anyone cares
     variables.whoCares = variables.googleUrlFunctions.GetAnalytics("http://goo.gl/dF8W5");
</cfscript>
<!--- Display Output --->
<cfoutput>
     <p>Shortened: #variables.getShorty#<br>
     Expanded: #variables.sizeMatters#</p>
     <cfdump var="#variables.whoCares#" label="Short URL Analytics Data">
</cfoutput>

The "ShortenURL" function is missing the setURL call and won't work without it.

        httpService.setUrl("https://www.googleapis.com/urlshortener/v1/url?key=" & variables.apiKey);

Due to an intermittent CF bug, I also recommend adding ".toString()" as ColdFusion sometimes returns content incorrectly as "binary" instead of plain text.

        result = deserializejson(result.filecontent.toString());

FYI: According to this announcement, Google is shutting down its goo.gl URL shortening service on April 13, 2018.
https://developers.googleblog.com/2018/03/transitioning-google-url-shortener.html

This article recommends moving to bit.ly or ow.ly:
https://www.engadget.com/2018/03/30/google-shutting-down-goo-gl-url-shortening-service/

Here's a CFC for generating bit.ly shortened URLs:
https://github.com/coldfumonkeh/bit.ly