student = { username, password, list(class_id) }
tutor = { username, password, list(class_id) }
file = { url, name, description, uploadedAt, uploadedBy, type }
class = { name, list(student_id), list(files_id), createdBy, createdOn }
http:localhost:3000/api/create-student
http:localhost:3000/api/student-login
http:localhost:3000/api/students
http:localhost:3000/api/create-tutor
http:localhost:3000/api/tutor-login
http:localhost:3000/api/tutors
http:localhost:3000/api/create-classroom
http:localhost:3000/api/classes
http:localhost:3000/api/add-student
http:localhost:3000/api/remove-student
http:localhost:3000/api/class-feed
http:localhost:3000/api/upload-file
http:localhost:3000/api/modify-file
http:localhost:3000/api/file
http:localhost:3000/api/files
http:localhost:3000/api/file-feed