Tableau API URL

[rswanra]

My Alteryx role is Artisan and i have API key and Secret to access Alteryx APIs. 

I tried to do the following and ended up with an error :-

a. Get access token using https://zzz/webapi/oauth2/token

b. I tried to access the below urls with the access token

          ->https://zzz/webapi/v2/collections

          ->https://zzz/webapi/v1/collections

   But i get the below error for both the urls .

{

    "error": {

        "code": "UnsupportedApiVersion",

        "message": "The HTTP resource that matches the request URI 'https://enterprisealteryx.juniper.net/webapi/v2/collections' does not support the API version '2'."

    }

}

Can anyone confirm what am trying to do is right? If not, point me in the right direction.