Write an ASP Core backend that support following actions

a)Write a Controller method that take userID using a post request and find users department_id and store the id in a session variable

b)Write a Controller Servis method thar return an employee list which contains employees in users department in the session variable

information about model;

User{UserId,Name}

Department{departmentId,userId,Name}

Employees{empId,departmentId,FisrtName,LastName}