Inter-Widget Communication (IWC)

Data API Refernce Action: addChild(nodeValue)

• nodeValue: Object - the value to store in the child node.

Applies to only the Data API

Creates a Child Node given a A Parent Node's Key

To add a child node, the addChild action is used on the desired parent reference.

Adding a child to the Data API triggers its parent to keep an up-to-date list of its child resources in its collection property. This means doing a get on the /shoppingCart reference below will return a collection of children node keys.

Since the node key of the child is runtime generated, it will be returned in the promise resolution's entity.resource as a string.

var shoppingCartRef = new iwc.data.Reference("/shoppingCart");

var cartEntry = {
    'price': 10,
    'size': 'M',
    'color': 'red',
    'quantity': 1
};

var cartEntryResource = "";

shoppingCartRef.addChild(cartEntry).then(function(childResource) {
    cartEntryResource = childResource;
});