GAS: Google Classroomの受講生のメールアドレスを取得する

getUserEmailsInCourse.gs

function getUserEmailsInCourse(courseId) {
  var emailList = [];
  var nextPageToken;
  
  do {
    var response = Classroom.Courses.Students.list(courseId, {
      pageToken: nextPageToken
    });
    
    var students = response.students;
    
    if (students && students.length > 0) {
      for (var i = 0; i < students.length; i++) {
        var userId = students[i].userId;
        var email = students[i].profile.emailAddress;
        emailList.push({
          userId: userId,
          email: email
        });
      }
    }
    
    nextPageToken = response.nextPageToken;
  } while (nextPageToken);
  
  return emailList;
}