ValueMap to convert JSON file

Hello, Can we use ValueMap other than loading it from .plist file?
For example I want to load json file to be use in ValueMap,or maybe loading json from REST, since it’s very simple API to use, and easily used in cocos2d-X. Can we do that? thanks!

I have a sample of my JSON -> ValueMap here:

Ah, I see. Thank you for the help.