I'm trying to use livestream's extremely helpful mobile api found at http://www.livestream.com/userguide/?title=Mobile_API#Requesting_a_mobile_stream to make an xml request. All I am interested in is the isLive response value. I am trying to use an ajax request like this
$.ajax({
type: "GET",
url: "http://xproshowcasex.channel-api.livestream-api.com/2.0/getstream",
datatype: "xml",
success: function(xml){
//this is where I need help. This is what I would like to happen
if (isLive == true) {
//perform action
}
else {
//perform other action
}
I am using the plugin found at http://james.padolsey.com/javascript/cross-domain-requests-with-jquery/ to make cross domain xml requests. Can anyone tell me if this is the most effective way to accomplish this? I haven't been able to get it to work. When I run the console.log(xml) (which probably isn't right) the JS console shows objectObject, which I think means I need to parse the data? I would love it if someone could take the time to explain this. Thanks so much.
You are close, the post you linked to basically describes page-scraping using a cross-domain request that goes through YQL (You can peek at the source to see exactly what's going on). You can cut out the plugin and accomplish the same thing with a regular JSONP request with jQuery:
Basically what this function does is call Yahoo's query api with a query to run. When the response comes back, the script returned calls a callback function that jQuery supplies (this is what makes JSONP possible).
The query you're using (specified in the
q
parameter) is against an XML feed, so you need to useselect * from xml
to retrieve the data. You can then tell Yahoo to give you the result in JSON format (I would recommend using this instead of XML; the XML was namespaced).Now, when you call this function:
The callback function receives the JSON data retrieved via YQL and finds the
isLive
property.Example: http://jsfiddle.net/andrewwhitaker/YAGvd/