Load JSON into Donut Chart

[virginiatong517]

Your example shows how to load data from JSON into a line chart, however, pie and donut charts have slightly different column input, as there is only one column only contains one value. How would I go about loading an array of JSONs of the following format:

var test_array_JSONs = [
{"label": "Label 1", "amount": 20},
{"label": "Label 2", "amount": 50},
{"label": "Label 3", "amount": 30}
];

into a donut chart?

I tried the following code but it unfortunately doesn't work:

var donutChart = c3.generate ({
data: {
json: 'test_array_JSONs',
keys: {
x: 'label',
value: 'amount'
},
type: 'donut'
}
});

Please let me know if it's possible to do this, thank you!

[virginiatong517]

Actually, I haven't seen an example when you can pass in a json stored in a variable into data. Is this possible?
For example:
var x = a json object, or an array of json objects
data: {
json: 'x'
}

[virginiatong517]

Additionally, how do you unload a json object?

[masayuki0812]

Hi, I think this is what you want to do. http://jsfiddle.net/hQSSn/3/
For unload, please specify the ids (in your case, Label 1, Label 2, etc) as the fiddle.