Build a Private API call in MATLAB

someone who can develop a private API call for Coinbase Pro (GDAX) in Matlab, preferrably using the "webread" functionality. See for more information about this crypro currency exchange: [login to view URL] The results should be a set of Matlab files (.m files) enabling me to do private calls to the Coinbase Pro API (see [login to view URL]) using the API Key, Secret and Passphrase and a set of parameters that go into the private call. So it should enable authentication as described here [login to view URL]