How JSON Schema is turning out for the Chrome extension APIs

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When Aaron talked about the Chrome extension API he mentioned how he would see if JSON Schema could help them have a JSON heavy API and allow them to easily validate.

He has quickly reported back and is happy with the results.

Something like this:

PLAIN TEXT
JAVASCRIPT:

   1.
      
   2.
      chromium.tabs.createTab = function(tab, callback) {
   3.
        validate(arguments, arguments.callee.params);
   4.
        sendRequest(CreateTab, tab, callback);
   5.
      };
   6.
      
   7.
      chromium.tabs.createTab.params = [
   8.
        {
   9.
          type: "object",
  10.
          properties: {
  11.
            windowId: chromium.types.optPInt,
  12.
            url: chromium.types.optStr,
  13.
            selected: chromium.types.optBool
  14.
          },
  15.
          additionalProperties: false
  16.
        },
  17.
        chromium.types.optFun
  18.
      ];
  19.
      

will give you errors such as:

    Invalid value for parameter 0. Property windowId: expected integer, got string.

It will be interesting to see how the APIs look when you go for this style throughout. Looking forward to see more.

source: ajaxian