One of the very nice things about this library is how quickly one can be up and running. I was a bit dismayed when ColdFusion wasn't there. After a few false starts, I quickly got this up and going. If you find it useful you can add it to the server side code examples.
<!--- ColdFusion Version 9 Code --->
<cfif CGI.REQUEST_METHOD EQ "POST">
<!--- Get the HTTP request body content.
NOTE: Use toString() as an intermediary method call since
the payload comes across as a byte array (binary data)
which needs to be turned back into a string before
ColdFusion can parse it --->
<cfset requestBody = toString( getHttpRequestData().content ) />
<!--- At this point, requestBody is a string that resembles URL parameters --->
<cfset requestParams = StructNew()>
<cfloop index="nameValuePair" list="#requestBody#" delimiters="&">
<cfset requestParams["#ListFirst(nameValuePair, '=')#"] = "#ListLast(nameValuePair, '=')#">
</cfloop>
<!--- Save the data into an active session along with the filename --->
<cfset StructDelete(Session, "exportData")>
<cfset StructDelete(Session, "exportFilename")>
<cfif IsDefined("requestParams.pq_data") AND IsDefined("requestParams.pq_ext")>
<cfif ListContains("csv,htm,json,xlsx,zip", "#requestParams.pq_ext#", ",")>
<!--- Data coming across is always URLEncoded to ensure accurate transmission --->
<cfset data = URLDecode(requestParams.pq_data)>
<cfif IsDefined("requestParams.pq_decode") AND UCase(requestParams.pq_decode) eq "TRUE">
<cfset data = BinaryDecode(data, "Base64")>
</cfif>
<cfset Session.exportData = data>
<cfif IsDefined("requestParams.pq_filename")>
<cfset Session.exportFilename = requestParams.pq_filename & '.' & requestParams.pq_ext>
<cfoutput>#Session.exportFilename#</cfoutput>
</cfif>
</cfif>
</cfif>
</cfif>
<cfif CGI.REQUEST_METHOD EQ "GET">
<!--- The payload for a GET is URL parameters --->
<cfif IsDefined("URL.pq_filename") AND Session.exportFilename eq URL.pq_filename>
<cfif IsDefined("Session.exportData")>
<cfset data = Session.exportData>
<cfset StructDelete(Session, "exportData")>
<cfheader name="Content-disposition" value="attachment;filename=#URL.pq_filename#">
<cfcontent type="application/octet-stream" variable="#ToBinary(ToBase64(data))#">
</cfif>
</cfif>
</cfif>
