I am having account in sandbox.coinbase and I have used oauth2 where I have add new app.
It'll provide me :
clientid = 'xxxxxxxx'
clientsecreateid = 'xxxxxxxxxxxxxxxx'
authredirecturl = 'xxxxxxx'
But when I am configure it using below code
$configuration = Configuration::oauth($accessToken);
$client = Client::create($configuration);
I need $accessToken, I go through the document file but I can't find anywhere so any one have idea where to find or how to get accessToken..?