Creare e gestire insegnanti e studenti

I ruoli di studente e insegnante in Google Classroom rappresentano il ruolo di un utente in un corso. Un utente può essere assegnato come insegnante in un corso e come studente in un altro. La dicitura "studente" o "insegnante" rappresenta un insieme di autorizzazioni per un determinato utente in un determinato corso.

Studenti

Una risorsa Student rappresenta un utente registrato come studente

in un corso specifico. Gli studenti possono visualizzare i dettagli del corso e gli insegnanti del corso.

Insegnanti

Una risorsa Teacher rappresenta un utente che insegna un corso specifico. Gli insegnanti sono autorizzati a visualizzare e modificare i dettagli del corso, visualizzare insegnanti e studenti e gestire insegnanti e studenti aggiuntivi. Ogni corso ha un insegnante principale, o proprietario del corso, che è un insegnante che può gestire impostazioni come il trasferimento della proprietà del corso.

Studenti e insegnanti vengono identificati dall'ID univoco o dall'indirizzo email dell'utente, come restituito dall'API Directory. L'utente attuale può anche fare riferimento al proprio ID utilizzando l'abbreviazione "me".

Autorizzazioni di gestione diretta utilizzando l'API Classroom

Amministratori, studenti e insegnanti hanno autorizzazioni diverse quando aggiungono o rimuovono direttamente utenti dai corsi utilizzando l'API Classroom.

Amministratori

Gli amministratori di dominio sono autorizzati a ignorare il flusso di inviti e ad aggiungere direttamente studenti e insegnanti a un corso se vengono soddisfatte le seguenti condizioni:

  • L'utente che viene aggiunto fa parte del dominio dell'amministratore.
  • L'insegnante principale del corso o il proprietario del corso fa parte del dominio dell'amministratore.

Per gli utenti o i corsi al di fuori del dominio di un amministratore, le applicazioni devono ottenere il consenso dell'utente inviando un invito con il metodo invitations.create.

Studenti

Gli studenti possono aggiungersi a un corso chiamando students.create e specificando il enrollmentCode del corso. enrollmentCode è un identificatore univoco del corso incluso nella risorsa Course. Nell'applicazione web Classroom, il enrollmentCode è disponibile nella scheda Stream e nella pagina dei dettagli del corso.

Insegnanti

Gli insegnanti non possono aggiungere direttamente utenti a un corso e devono utilizzare il metodo invitations.create per invitare studenti e altri insegnanti al corso.

La tabella seguente descrive quale utente è autorizzato a effettuare richieste ai metodi create e delete per le risorse Teacher e Student.

Amministratore Insegnante Studente
CreateTeacher ✔️ ✖️ ✖️
DeleteTeacher ✔️ ✔️ ✖️
CreateStudent ✔️ ✖️ ✔️ 1
DeleteStudent ✔️ ✔️ ✔️ 2

1 Uno studente può aggiungersi a un corso solo se è già iscritto.

2 Uno studente può eliminare solo la propria iscrizione a un corso.

Gestire gli insegnanti

Gli amministratori di dominio possono aggiungere direttamente gli insegnanti del proprio dominio ai corsi con teachers.create, come mostrato nel seguente esempio:

.NET

classroom/snippets/ClassroomSnippets/AddTeacher.cs
using Google.Apis.Auth.OAuth2;
using Google.Apis.Classroom.v1;
using Google.Apis.Classroom.v1.Data;
using Google.Apis.Services;
using System;
using System.Net;
using Google;

namespace ClassroomSnippets
{
    // Class to demonstrate the use of Classroom Create Teacher API
    public class AddTeacher
    {
       /// <summary>
       /// Add teacher to the Course
       /// </summary>
       /// <param name="courseId"></param>
       /// <param name="teacherEmail"></param>
       /// <returns></returns>
        public static Teacher ClassroomAddTeacher( string courseId,
                 string teacherEmail)
         {
             try 
             {
                 /* Load pre-authorized user credentials from the environment.
                  TODO(developer) - See https://developers.google.com/identity for 
                  guides on implementing OAuth2 for your application. */
                 GoogleCredential credential = GoogleCredential.GetApplicationDefault()
                     .CreateScoped(ClassroomService.Scope.ClassroomRosters);

                 // Create Classroom API service.
                 var service = new ClassroomService(new BaseClientService.Initializer
                 {
                     HttpClientInitializer = credential,
                     ApplicationName = "Classroom API Snippet"
                 });

                 var teacher = new Teacher
                 {
                     UserId = teacherEmail
                 };
                 // Add the teacher to the course.
                 teacher = service.Courses.Teachers.Create(teacher, courseId).Execute();
                     Console.WriteLine(
                         "User '{0}' was added as a teacher to the course with ID '{1}'.\n",
                         teacher.Profile.Name.FullName, courseId);
                     return teacher;
             }
             catch (Exception e)
             {
                 // TODO(developer) - handle error appropriately
                 if (e is AggregateException)
                 {
                     Console.WriteLine("Credential Not found");
                 }
                 else if (e is GoogleApiException)
                 {
                     Console.WriteLine("Failed to Add the teacher. Error message: {0}", e.Message);
                 }
                 else
                 {
                     throw;
                 }
             }

             return null;
         }


    }

}

Java

classroom/snippets/src/main/java/AddTeacher.java
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.googleapis.json.GoogleJsonError;
import com.google.api.client.googleapis.json.GoogleJsonResponseException;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.classroom.Classroom;
import com.google.api.services.classroom.ClassroomScopes;
import com.google.api.services.classroom.model.Teacher;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.ArrayList;
import java.util.Arrays;

/* Class to demonstrate the use of Classroom Add Teacher API */
public class AddTeacher {

  /* Scopes required by this API call. If modifying these scopes, delete your previously saved
  tokens/ folder. */
  static ArrayList<String> SCOPES =
      new ArrayList<>(Arrays.asList(ClassroomScopes.CLASSROOM_ROSTERS));

  /**
   * Add teacher to a specific course.
   *
   * @param courseId - Id of the course.
   * @param teacherEmail - Email address of the teacher.
   * @return newly created teacher
   * @throws IOException - if credentials file not found.
   * @throws GeneralSecurityException - if a new instance of NetHttpTransport was not created.
   */
  public static Teacher addTeacher(String courseId, String teacherEmail)
      throws GeneralSecurityException, IOException {

    // Create the classroom API client.
    final NetHttpTransport HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
    Classroom service =
        new Classroom.Builder(
                HTTP_TRANSPORT,
                GsonFactory.getDefaultInstance(),
                ClassroomCredentials.getCredentials(HTTP_TRANSPORT, SCOPES))
            .setApplicationName("Classroom samples")
            .build();

    Teacher teacher = new Teacher().setUserId(teacherEmail);
    try {
      // Add a teacher to a specified course
      teacher = service.courses().teachers().create(courseId, teacher).execute();
      // Prints the course id with the teacher name
      System.out.printf(
          "User '%s' was added as a teacher to the course with ID '%s'.\n",
          teacher.getProfile().getName().getFullName(), courseId);
    } catch (GoogleJsonResponseException e) {
      // TODO(developer) - handle error appropriately
      GoogleJsonError error = e.getDetails();
      if (error.getCode() == 409) {
        System.out.printf("User '%s' is already a member of this course.\n", teacherEmail);
      } else if (error.getCode() == 403) {
        System.out.println("The caller does not have permission.\n");
      } else {
        throw e;
      }
    }
    return teacher;
  }
}

PHP

classroom/snippets/src/ClassroomAddTeacher.php
<?php
use Google\Client;
use Google\Service\Classroom;
use Google\Service\Classroom\Teacher;
use Google\service\Exception;

function addTeacher($courseId, $teacherEmail)
{
    /* Load pre-authorized user credentials from the environment.
    TODO (developer) - See https://developers.google.com/identity for
     guides on implementing OAuth2 for your application. */
    $client = new Client();
    $client->useApplicationDefaultCredentials();
    $client->addScope("https://www.googleapis.com/auth/classroom.profile.photos");
    $service = new Classroom($client);
    $teacher = new Teacher([
        'userId' => $teacherEmail
    ]);
    try {
        //  calling create teacher
        $teacher = $service->courses_teachers->create($courseId, $teacher);
        printf("User '%s' was added as a teacher to the course with ID '%s'.\n",
            $teacher->profile->name->fullName, $courseId);
    } catch (Exception $e) {
        if ($e->getCode() == 409) {
            printf("User '%s' is already a member of this course.\n", $teacherEmail);
        } else {
            throw $e;
        }
    }
    return $teacher;
}

Python

classroom/snippets/classroom_add_teacher.py
import google.auth
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError


def classroom_add_teacher(course_id):
  """
  Adds a teacher to a course with specific course_id.
  Load pre-authorized user credentials from the environment.
  TODO(developer) - See https://developers.google.com/identity
  for guides on implementing OAuth2 for the application.
  """
  creds, _ = google.auth.default()
  # pylint: disable=maybe-no-member
  service = build("classroom", "v1", credentials=creds)

  teacher_email = "gduser1@workspacesamples.dev"
  teacher = {"userId": teacher_email}

  try:
    teachers = service.courses().teachers()
    teacher = teachers.create(courseId=course_id, body=teacher).execute()
    print(
        "User %s was added as a teacher to the course with ID %s"
        % (teacher.get("profile").get("name").get("fullName"), course_id)
    )
  except HttpError as error:
    print('User "{%s}" is already a member of this course.' % teacher_email)
    return error
  return teachers


if __name__ == "__main__":
  # Put the course_id of course for which Teacher needs to be added.
  classroom_add_teacher(453686957652)

I co-insegnanti possono rimuovere altri insegnanti da un corso con il metodo teachers.delete. In questo modo viene rimosso solo l'insegnante specificato dal corso e non viene modificata la sua assegnazione ad altri corsi o il suo profilo utente.

Gestire i proprietari del corso

Gli amministratori di dominio possono trasferire la proprietà dei corsi tra gli insegnanti. Per informazioni importanti, consulta la sezione Aggiornare il proprietario del corso.

Gestire gli studenti

Gli amministratori di dominio possono aggiungere direttamente gli studenti all'interno del proprio dominio con il metodo students.create. Se uno studente si aggiunge direttamente a un corso, è necessario enrollmentCode.

.NET

classroom/snippets/ClassroomSnippets/AddStudent.cs
using Google.Apis.Auth.OAuth2;
using Google.Apis.Classroom.v1;
using Google.Apis.Classroom.v1.Data;
using Google.Apis.Services;
using System;
using System.Net;
using Google;

namespace ClassroomSnippets
{
    // Class to demonstrate the use of Classroom Create Student API
    public class AddStudent
    {
        public static Student ClassroomAddStudent(string courseId, string enrollmentCode)
        {
            try
            {
                /* Load pre-authorized user credentials from the environment.
                 TODO(developer) - See https://developers.google.com/identity for 
                 guides on implementing OAuth2 for your application. */
                GoogleCredential credential = GoogleCredential.GetApplicationDefault()
                    .CreateScoped(ClassroomService.Scope.ClassroomRosters);
                var service = new ClassroomService(new BaseClientService.Initializer
                {
                    HttpClientInitializer = credential,
                    ApplicationName = "Classroom API .NET Quickstart"
                });

                var student = new Student
                {
                    UserId = "me"
                };

                var request = service.Courses.Students.Create(student, courseId);
                request.EnrollmentCode = enrollmentCode;
                student = request.Execute();
                Console.WriteLine(
                    "User '{0}' was enrolled  as a student in the course with ID '{1}'.\n",
                    student.Profile.Name.FullName, courseId);
            }
            catch (Exception e)
            {
                // TODO(developer) - handle error appropriately
                if (e is AggregateException)
                {
                    Console.WriteLine("Credential Not found");
                }
                else if (e is GoogleApiException)
                {
                    Console.WriteLine("Failed to Add the Student. Error message: {0}", e.Message);
                }
                else
                {
                    throw;
                }
            }

            return null;
        }
    }

}

Java

classroom/snippets/src/main/java/AddStudent.java
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.googleapis.json.GoogleJsonError;
import com.google.api.client.googleapis.json.GoogleJsonResponseException;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.classroom.Classroom;
import com.google.api.services.classroom.ClassroomScopes;
import com.google.api.services.classroom.model.Student;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.ArrayList;
import java.util.Arrays;

/* Class to demonstrate the use of Classroom Add Student API */
public class AddStudent {

  /* Scopes required by this API call. If modifying these scopes, delete your previously saved
  tokens/ folder. */
  static ArrayList<String> SCOPES =
      new ArrayList<>(Arrays.asList(ClassroomScopes.CLASSROOM_ROSTERS));

  /**
   * Add a student in a specified course.
   *
   * @param courseId - Id of the course.
   * @param enrollmentCode - Code of the course to enroll.
   * @return newly added student
   * @throws IOException - if credentials file not found.
   * @throws GeneralSecurityException - if a new instance of NetHttpTransport was not created.
   */
  public static Student addStudent(String courseId, String enrollmentCode, String studentId)
      throws GeneralSecurityException, IOException {

    // Create the classroom API client.
    final NetHttpTransport HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
    Classroom service =
        new Classroom.Builder(
                HTTP_TRANSPORT,
                GsonFactory.getDefaultInstance(),
                ClassroomCredentials.getCredentials(HTTP_TRANSPORT, SCOPES))
            .setApplicationName("Classroom samples")
            .build();

    Student student = new Student().setUserId(studentId);
    try {
      // Enrolling a student to a specified course
      student =
          service
              .courses()
              .students()
              .create(courseId, student)
              .setEnrollmentCode(enrollmentCode)
              .execute();
      // Prints the course id with the Student name
      System.out.printf(
          "User '%s' was enrolled as a student in the course with ID '%s'.\n",
          student.getProfile().getName().getFullName(), courseId);
    } catch (GoogleJsonResponseException e) {
      // TODO(developer) - handle error appropriately
      GoogleJsonError error = e.getDetails();
      if (error.getCode() == 409) {
        System.out.println("You are already a member of this course.");
      } else if (error.getCode() == 403) {
        System.out.println("The caller does not have permission.\n");
      } else {
        throw e;
      }
    }
    return student;
  }
}

PHP

classroom/snippets/src/ClassroomAddStudent.php
<?php
use Google\Client;
use Google\Service\Classroom;
use Google\Service\Classroom\Student;
use Google\Service\Exception;

function enrollAsStudent($courseId,$enrollmentCode)
{
    /* Load pre-authorized user credentials from the environment.
    TODO (developer) - See https://developers.google.com/identity for
     guides on implementing OAuth2 for your application. */
    $client = new Client();
    $client->useApplicationDefaultCredentials();
    $client->addScope("https://www.googleapis.com/auth/classroom.profile.emails");
    $service = new Classroom($client);
    $student = new Student([
        'userId' => 'me'
    ]);
    $params = [
        'enrollmentCode' => $enrollmentCode
    ];
    try {
        $student = $service->courses_students->create($courseId, $student, $params);
        printf("User '%s' was enrolled  as a student in the course with ID '%s'.\n",
            $student->profile->name->fullName, $courseId);
    } catch (Exception $e) {
        if ($e->getCode() == 409) {
            print "You are already a member of this course.\n";
        } else {
            throw $e;
        }
    }
    return $student;
}

Python

classroom/snippets/classroom_add_student.py
import os

from google.auth.transport.requests import Request
from google.oauth2.credentials import Credentials
from google_auth_oauthlib.flow import InstalledAppFlow
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError

SCOPES = ["https://www.googleapis.com/auth/classroom.coursework.students"]


def classroom_add_student_new(course_id):
  """
  Adds a student to a course, the teacher has access to.
  The file token.json stores the user's access and refresh tokens, and is
  created automatically when the authorization flow completes for the first
  time.
  Load pre-authorized user credentials from the environment.
  TODO(developer) - See https://developers.google.com/identity for
   guides on implementing OAuth2 for the application.
  """

  creds = None
  # The file token.json stores the user's access and refresh tokens, and is
  # created automatically when the authorization flow completes for the first
  # time.
  if os.path.exists("token.json"):
    creds = Credentials.from_authorized_user_file("token.json", SCOPES)
  # If there are no (valid) credentials available, let the user log in.
  if not creds or not creds.valid:
    if creds and creds.expired and creds.refresh_token:
      creds.refresh(Request())
    else:
      flow = InstalledAppFlow.from_client_secrets_file(
          "credentials.json", SCOPES
      )
      creds = flow.run_local_server(port=0)
    # Save the credentials for the next run
    with open("token.json", "w", encoding="utf8") as token:
      token.write(creds.to_json())

  enrollment_code = "abc-def"
  student = {"userId": "gduser1@workspacesamples.dev"}
  try:
    service = build("classroom", "v1", credentials=creds)
    student = (
        service.courses()
        .students()
        .create(
            courseId=course_id, enrollmentCode=enrollment_code, body=student
        )
        .execute()
    )
    print(
        '''User {%s} was enrolled as a student in
                   the course with ID "{%s}"'''
        % (student.get("profile").get("name").get("fullName"), course_id)
    )
    return student
  except HttpError as error:
    print(error)
    return error


if __name__ == "__main__":
  # Put the course_id of course for which student needs to be added.
  classroom_add_student_new(478800920837)

La rimozione di uno studente da un corso utilizzando il metodo students.delete lo rimuove solo dal corso specificato e non influisce sulla sua iscrizione ad altri corsi o sul suo profilo utente.

Recuperare i corsi di un utente

Per recuperare un elenco di corsi per uno studente o un insegnante, chiama courses.list e fornisci l'studentId o l'teacherId dell'utente corrispondente.

Non puoi impostare sia studentId che teacherId in una singola richiesta courses.list(). Per recuperare un elenco dei corsi a cui sono iscritti un insegnante e uno studente specifici, effettua richieste courses.list() separate per ogni utente. Quindi, trova l'intersezione dei due gruppi di risultati.

Recuperare il profilo di un utente

Per recuperare il profilo di un utente, inclusi ID e nome, chiama userProfiles.get con l'ID, l'email o "me" dell'utente che effettua la richiesta. Per recuperare il campo emailAddress, devi includere l'ambito classroom.profile.emails.

Il id restituito corrisponde alla risorsa Utenti dell'API Directory contenente studentId o teacherId corrispondenti.

Avanti
Creare e gestire gli inviti ai corsi