I'm making an API that will return data in JSON.

I also wanted on client side to make an utility class to call this API.

Something like :

JSONObject sendGetRequest(Url url);
JSONObject sendPostRequest(Url url, HashMap postData);

However sometimes the API send back array of object [{id:1},{id:2}]

I now got two choices ():

• Make the method test for JSONArray or JSONObject and send back an Object that I will have to cast in the caller
• Make a method that returns JSONObject and one for JSONArray (like sendGetRequestAndReturnAsJSONArray)
• Make the server always send Arrays even for one element
• Make the server always send Objects wrapping my Array

I going for the two last methods since I think it would be a good thing to force the API to send consistent type of data.

But what would be the best practice (if one exist).

Always send arrays? or always send objects?