Angularjs Laravel JWT authentication

Your task is to implement JWT on my existing login mechanism built using Angularjs. The laravel backend is ready. Also I have written the angularjs interceptor and laravel functions. However I am still unsure how to handle the 'token_not_provided','token_invalid','token_expired, 'token_blacklisted'. Note: This work should be completed via teamviewer. I cannot provide the source code via github and other means. This is an easy task.