Need help with backend rest controller

.Gradebook app: create REST apis to add/delete assignments for a course.

The story is : As an instructor for a course , I can add a new assignment for my course. The assignment has a name and a due date.
As an instructor, I can change the name of the assignment for my course.
As an instructor, I can delete an assignment for my course (only if there are no grades for the assignment).
3a. To start the Spring Server from eclipse,

4. Write Junit test cases for the stories.

See the textbook and example given in the eclipse project under directory ‘src/test/java’ JunitTestXXXXX.java