It's covered here:
http://training.figleaf.com/curriculum/cfjqm.cfm
On Thu, Dec 5, 2013 at 1:57 PM, Wilson, Brooks <brooks.wil...@atl.frb.org>wrote:
> Greetings:
>
>
>
> I’m beginning to think it isn’t possible for CF 9.01 to return JSONP? I am
> using jQuery 1.10.2 on a client to request a JSONP object. See the
> following HTML (client-side):
>
>
>
> var jqxhr = $.getJSON( "WeatherFeedJsonp.cfc?callback=?"
>
> , {method: "get5DayForecastJsonp", latitude: "33.76", longitude:
> "-84.42"}
>
> , function(data) { loadData(data); } // callback function
>
> )
>
> .fail(function(jqxhr, textStatus, error) {
>
> var err = textStatus + ", " + err; alert(err);
>
> });
>
>
>
> The WeatherFeedJsonp.cfc method get5DayForecastJsonP is coded
> (server-side):
>
>
>
> <cffunction name="get5DayForecastJsonp" access="remote" returntype="array"
> returnFormat="JSON">
>
> <cfargument name="latitude" type="Numeric" required="true"/>
>
> <cfargument name="longitude" type="Numeric" required="true"/>
>
>
>
> <cfset var data = get5DayForecastXml(latitude, longitude)/> <!---
> returns NOAA XML weather feed --->
>
> <cfset var data = xmlParse(data)/>
>
> <cfset var xmlRoot = data['dwml']['data']/>
>
> <cfset var weather = arrayNew(1)/>
>
>
>
> <!---
>
> .
>
> .
>
> .
>
> loop through the XML data variable that contains the 5 day forecast from
> NOAA
>
> and create an array of daily weather forecast in the "weather" variable"
>
> .
>
> .
>
> .
>
> --->
>
>
>
> <cfreturn weather/>
>
> </cffunction>
>
>
>
> I added
>
>
>
> <cfset this.secureJSON = true>
>
> <cfset this.secureJSONPrefix = "// ">
>
>
>
> to application.cfc .
>
>
>
> On the client, I tested by visiting the URL:
> *http://myservername.org/componentName.cfc?method=get5DayForecastJsonp&latitude=.
> <http://myservername.org/componentName.cfc?method=get5DayForecastJsonp&latitude=.>..*And
> I get a nice looking JSON string back:
>
>
>
> //
> [{"ICON":"hi_shwrs50.jpg","LOTEMP":"62","PCTRAINNITE":"48","CONDITIONS":"Chance
> Rain
> Showers","DATE":"2013-12-05","PCTRAINDAY":"54","HITEMP":"72"},{"ICON":"hi_shwrs80.jpg","LOTEMP":"49","PCTRAINNITE":"80","CONDITIONS":"Rain
> Showers
> Likely","DATE":"2013-12-06","PCTRAINDAY":"72","HITEMP":"75"},{"ICON":"ra.jpg","LOTEMP":"47","PCTRAINNITE":"80","CONDITIONS":"Drizzle","DATE":"2013-12-07","PCTRAINDAY":"70","HITEMP":"54"},{"ICON":"ra80.jpg","LOTEMP":"53","PCTRAINNITE":"67","CONDITIONS":"Rain","DATE":"2013-12-08","PCTRAINDAY":"80","HITEMP":"56"},{"ICON":"hi_shwrs70.jpg","LOTEMP":"40","PCTRAINNITE":"49","CONDITIONS":"Rain
> Showers Likely","DATE":"2013-12-09","PCTRAINDAY":"70","HITEMP":"61"}]
>
>
>
> But when I execute the code with the $.getJSON call via HTML I get an
> error. In FireBug I get a 200 OK and the data appears as XHR not
> JavaScript. I know that the content type returned in the response must be
> text/javascript, so I used
>
>
>
> <cfcontent type="text/javascript; charset=UTF-8" />
>
>
>
> In the CFC component body. The content-type response header says
> “text/javascript”, but it still shows up as XHR.
>
>
>
> Has anyone implemented a JSONP feed with CF 9? What am I missing?
>
>
>
> Sincerely, Brooks
> ------------------------------
>
> Brooks Wilson | Senior Web Developer Programmer/Analyst
> *Technology Solutions Services | **Application Delivery Services*
>
> Federal Reserve Bank of Atlanta | 1000 Peachtree Street, Atlanta, GA
> 30309-4470
>
> Phone: 404.498.8178 | Fax: 404.498.8239 | Mobile: 404.985.9270
>
> Email: brooks.wil...@atl.frb.org
>
>
>
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