Component Dropdown Dynamic values info

Hi,

I have developed the dropdown component in that value should be dynamic.

The value is based response from the other system.

For that i have created component and by using ajax call i have passed to Slingservlet for there i am passing i am passing to some third party system and getting json response.

Now question is how i will use json response from Ajax success call   or how this response will be used in Slightly

Can any one have idea plz share some example which will be use full for me.

Let me know if any information is needed from my end

Regards

Manikantha R