Regarding Multiple Get Or Post using Single API

Question

Dear All,

I am beginner in  ASP .net MVC and Angular 5.

I was trying to call multiple htttp get using Angular 5  to Single API controller of MVC.

But I am getting Error status code of 400.

When I am trying to change signature even at that time I am getting same Error.

 

 I have following Http Get Methods :-

 

 

public List<Student> GetStudentList(int studentID)
{
  return _libraryRepository.GetStudentList(studentID);
}

public List<Teacher> GetteacherList(int teacherID)
{
  return _libraryRepository.GetTeachertList(teacherID);
}

along with tath I want to call some more Get with paramter or without parameter.

 

Please help me to overcome this problem.

 

Thanking You in advance.