Update Backend Route for Courses and Classes

[jason4193]

What is expected

• route for adding a new course

1. Route: user/addCourse
2. Params: req.user.id | req.body.courseId |

• route for removing a course
• updating the course assigned colour
• select a class for a course

What to be in mind

• validate the information given from the request
• handling the graphql errors

[jason4193]

Resolved with added routes

• Get Course ID /user/course/:timetableId
• Add Course /user/course/:timetableId/:courseId
• Remove Course /user/course/:timetableId/:courseId
• Update Course Colour /user/course/:timetableId/:courseId/
• Get ClassIDs from Course /user/classes/:timetableId/:courseId
• Select Class for Course /user/class/:timetableId/:courseId
• Remove Class for Course /user/class/:timetableId/:courseId/:classId
  Using PostMan to test the routes