There are 2 ways of how you can authenticate using this package.
1. The recommended practise for the end-user of this package is to use default API keys which
are provided using this method.
2. Alternatively, you can register your own application via the web in order to get Client ID
and Client Secret code.
For that go first to https://app.bitly.com/settings/integrations/. Click REGISTERED OAUTH APPLICATIONS
,
then REGISTER NEW APPLICATION
followed by GET REGISTRATION CODE
.
Open your email that you will receive and click COMPLETE REGISTRATION
.
Make up an APPLICATION NAME
that is unique. Unless you know to do otherwise,
type "http://localhost:1410/" (slash at the end is important) in REDIRECT URIs
. For
APPLICATION LINK
and APPLICATION DESCRIPTION
you can type whatever you like.