BASEURL https://anytimefitnessbuild.herokuapp.com/
ENDPOINTS
[POST] /api/auth/register - signs up user for instructor or client role
[POST] /api/auth/login - logs in user
[GET] /api/instructors - will get all instructors
[GET] /api/instructors/:id - will get instructor by id
[POST] /api/instructors - will add instructor
[PUT] /api/instructors/:id - will update instructor by id
[DELETE] /api/instructors/:id - will delete instructor by id
[GET] /api/clients -will get all clients (only instructor can get role:1)
[GET] /api/clients/:id -will get client by id (only instructor can get)
[PUT] /api/clients/:id -will let client update information
[DELETE] /api/clients/:id -will delete client
[GET] /api/classes - gets all classes created
[GET] /api/classes/:id - gets single class by ID
[POST] /api/classes - creates a new class
[PUT] /api/classes/:id - updates class by its ID
[DELETE] /api/classes/:id - deletes class by its ID
[GET] /api/locations - gets all locations
[GET] /api/locations/:id - gets location by ID
[POST] /api/locations - creates a new location
[PUT] /api/locations/:id - updates location by ID
[DELETE] /api/locations/:id - deletes location by ID
[GET] /api/attending - gets all classes with attending clients
[GET] /api/attending/:id - gets class being attended by ID
[POST] /api/attending/:id - add client to class
[DELETE] /api/attending - deletes clients in class ID