This repo is from a course on building multiple pages in Angular. It was supposed to load all of the most popular images from Instagram into a bootstrap gallery layout so that a user could scroll through them. However Instagram has changed their API since this video was released so it now requires a valid callback URL to get a client access token instead of just using the client_id code as before.
I decided to go ahead and finish the entire repo per the video even if the full functionality wasn't there just to get experience in the coding of the new service and seeing how the lightbox was setup.