I am calling the Flickr data feed in WinJS for a Windows 8 Metro App. When I attempt to parse the feed response with JSON.parse, I get an Invalid Character error. Here is my code:

function processPhotos(result)
{
    var photoData = JSON.parse(result.responseText);
    //bind here
    data.items.forEach(function (item) {
        list.push(item);
    });
}

function processError(error) {
    console.log(error.message);
}

WinJS.xhr({ url: ".gne?format=json" }).then(processPhotos, processError);
WinJS.Namespace.define("data", {
    items: groupedItems,
    groups: groupedItems.groups,
    getItemsFromGroup: getItemsFromGroup
});

Result.ResponseText has the expected content.

Does anyone else encounter this?

I am calling the Flickr data feed in WinJS for a Windows 8 Metro App. When I attempt to parse the feed response with JSON.parse, I get an Invalid Character error. Here is my code:

function processPhotos(result)
{
    var photoData = JSON.parse(result.responseText);
    //bind here
    data.items.forEach(function (item) {
        list.push(item);
    });
}

function processError(error) {
    console.log(error.message);
}

WinJS.xhr({ url: "http://api.flickr./services/feeds/photos_public.gne?format=json" }).then(processPhotos, processError);
WinJS.Namespace.define("data", {
    items: groupedItems,
    groups: groupedItems.groups,
    getItemsFromGroup: getItemsFromGroup
});

Result.ResponseText has the expected content.

Does anyone else encounter this?

• javascript
• windows-8
• microsoft-metro
• windows-runtime
• winjs

Share Improve this question Follow asked Mar 13, 2012 at 4:27 Bill SempfBill Sempf 97622 gold badges1414 silver badges4040 bronze badges

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2 Answers 2

Sorted by: Reset to default 4

I had to do this to clear out some of the invalid characters in the responseText. (suggested to me by https://stackoverflow./users/200698/devhammer)

var cleansed = result.responseText.replace(/\\'/g, "'");
var photoData = JSON.parse(cleansed).d;

If you look at the data, you will notice it's not JSON, it's JSONP. That's the reason why JSON.parse() can't process it. If you want normal JSON, according to the documentation, you should use nojsoncallback=1:

http://api.flickr./services/feeds/photos_public.gne?format=json&nojsoncallback=1