initial request logic to get the access token
Add front controller to handle the oauth2 implicit grant type return request
handle data from nosto
Refactor data exchange business logic
Refactor to use oauth2 "Authorization Code" grant type
Add error handling to oauth controller
Add authorize link to other config view as well and do some refactoring
Add client secret and do some refactoring
Add error/success message on oauth authentication request
Fix oath end point base url
Convert client secret from bin to hex
Fix oauth uri paths
Fix error message
Change token request from post to get
Fix auth message logic
Refactor admin flash message handling
Improve error handling and text strings
Change the exchange with nosto request to not add the access token as a header, but a normal get param instead
Fix isset bug
Fix data exchange between plugin and nosto