Withings API: Access Shared User Measurement Data

Question

I am trying to access measurement data for users that have shared access to my Withings account. I can access my own measurement data, but not data for their user ids. Is this access even possible for through the API?

Whenever I change the userid to one other than my own, I get the error code indicating an invalid userid was given.

http://wbsapi.withings.net/measure?action=getmeas&startdate=122281920&userid=12345

gives me this in PHP

stdClass Object
(
    [status] => 247
)

Answer 1

According to customer support, it is impossible to retrieve data from any user other than the one that is authenticated.

One suggestion is to gather OAuth tokens for each user and retrieve measurements with each, separate OAuth token.