Manage Courses

A Course resource represents a class, such as "Math 127," and its assigned teachers, student roster, and metadata.

Each course is identified by a unique ID assigned by the server. Additionally, names may be associated with a course and used in place of the unique ID. Each name, called an Alias, exists in a namespace that restricts who can create and view it.

Two namespaces are supported:

• Domain: The domain namespace is useful for creating aliases that all users need access to, but that are not specific to any one program. For example, alternate listings for a course, such as MATH 127 and COMSCI 127, should be created in the domain namespace. Aliases in the domain namespace may only be created by domain administrators but are visible to all users in a domain.
• Developer project: The developer project namespace is useful for managing aliases specific to an application. For example, an application that uses alternate identifiers for courses can create aliases to map its identifier to Classroom courses. Aliases created in this namespace are tied to a specific Google API Console project. Any user of an application can create and view aliases in the namespace for that application's developer project.

Create a course

You can add a course using the courses.create() method, as shown in the following sample:

.NET

classroom/snippets/ClassroomSnippets/CreateCourse.cs

View on GitHub

using Google;
using Google.Apis.Auth.OAuth2;
using Google.Apis.Classroom.v1;
using Google.Apis.Classroom.v1.Data;
using Google.Apis.Services;
using System;

namespace ClassroomSnippets
{   
    // Class to demonstrate the use of Classroom Create Course API
    public class CreateCourse
    {
        /// <summary>
        /// Creates a new course with description.
        /// </summary>
        /// <returns>newly created course</returns>
        public static Course ClassroomCreateCourse()
        {
            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.ClassroomCourses);

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

                // Create a new course with description.
                var course = new Course
                {
                    Name = "10th Grade Biology",
                    Section = "Period 2",
                    DescriptionHeading = "Welcome to 10th Grade Biology",
                    Description = "We'll be learning about about the structure of living creatures "
                                  + "from a combination of textbooks, guest lectures, and lab work. Expect "
                                  + "to be excited!",
                    Room = "301",
                    OwnerId = "me",
                    CourseState = "PROVISIONED"
                };

                course = service.Courses.Create(course).Execute();
                // Prints the new created course Id and name.
                Console.WriteLine("Course created: {0} ({1})", course.Name, course.Id);
                return course;
            }
            catch (Exception e)
            {
                // TODO(developer) - handle error appropriately
                if (e is AggregateException)
                {
                    Console.WriteLine("Credential Not found");
                }
                else if (e is GoogleApiException)
                { 
                    Console.WriteLine("OwnerId not specified.");
                }
                else
                {
                    throw;
                }
            }
            return null;
        }
    }
}

Apps Script

classroom/snippets/createCourse.gs

View on GitHub

/**
 * Creates 10th Grade Biology Course.
 * @see https://developers.google.com/classroom/reference/rest/v1/courses/create
 * return {string} Id of created course
 */
function createCourse() {
  let course = {
    name: '10th Grade Biology',
    section: 'Period 2',
    descriptionHeading: 'Welcome to 10th Grade Biology',
    description: 'We\'ll be learning about the structure of living creatures from a combination ' +
      'of textbooks, guest lectures, and lab work. Expect to be excited!',
    room: '301',
    ownerId: 'me',
    courseState: 'PROVISIONED'
  };
  try {
    // Create the course using course details.
    course = Classroom.Courses.create(course);
    console.log('Course created: %s (%s)', course.name, course.id);
    return course.id;
  } catch (err) {
    // TODO (developer) - Handle Courses.create() exception
    console.log('Failed to create course %s with an error %s', course.name, err.message);
  }
}

Go

classroom/snippets/createCourse.go

View on GitHub

c := &classroom.Course{
	Name:               "10th Grade Biology",
	Section:            "Period 2",
	DescriptionHeading: "Welcome to 10th Grade Biology",
	Description:        "We'll be learning about about the structure of living creatures from a combination of textbooks, guest lectures, and lab work. Expect to be excited!",
	Room:               "301",
	OwnerId:            "me",
	CourseState:        "PROVISIONED",
}
course, err := srv.Courses.Create(c).Do()
if err != nil {
	log.Fatalf("Course unable to be created %v", err)
}

Java

classroom/snippets/src/main/java/CreateCourse.java

View on GitHub

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.Course;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.ArrayList;
import java.util.Arrays;

/* Class to demonstrate the use of Classroom Create Course API */
public class CreateCourse {
  /* 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_COURSES));

  /**
   * Creates a course
   *
   * @return newly created course
   * @throws IOException - if credentials file not found.
   * @throws GeneralSecurityException - if a new instance of NetHttpTransport was not created.
   */
  public static Course createCourse() 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();

    Course course = null;
    try {
      // Adding a new course with description. Set CourseState to `ACTIVE`. Possible values of
      // CourseState can be found here:
      // https://developers.google.com/classroom/reference/rest/v1/courses#coursestate
      course =
          new Course()
              .setName("10th Grade Biology")
              .setSection("Period 2")
              .setDescriptionHeading("Welcome to 10th Grade Biology")
              .setDescription(
                  "We'll be learning about about the structure of living creatures "
                      + "from a combination of textbooks, guest lectures, and lab work. Expect "
                      + "to be excited!")
              .setRoom("301")
              .setOwnerId("me")
              .setCourseState("ACTIVE");
      course = service.courses().create(course).execute();
      // Prints the new created course Id and name
      System.out.printf("Course created: %s (%s)\n", course.getName(), course.getId());
    } catch (GoogleJsonResponseException e) {
      GoogleJsonError error = e.getDetails();
      if (error.getCode() == 400) {
        System.err.println("Unable to create course, ownerId not specified.\n");
      } else {
        throw e;
      }
    }
    return course;
  }
}

PHP

classroom/snippets/src/ClassroomCreateCourse.php

View on GitHub

use Google\Client;
use Google\Service\Classroom;
use Google\Service\Classroom\Course;
use Google\Service\Exception;

function createCourse()
{
    /* 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.courses");
    $service = new Classroom($client);
    try {
        $course = new Course([
            'name' => '10th Grade Biology',
            'section' => 'Period 2',
            'descriptionHeading' => 'Welcome to 10th Grade Biology',
            'description' => 'We\'ll be learning about about the structure of living ' .
                'creatures from a combination of textbooks, guest ' .
                'lectures, and lab work. Expect to be excited!',
            'room' => '301',
            'ownerId' => 'me',
            'courseState' => 'PROVISIONED'
        ]);
        $course = $service->courses->create($course);
        printf("Course created: %s (%s)\n", $course->name, $course->id);
        return $course;
    } catch (Exception $e) {
        echo 'Message: ' . $e->getMessage();
    }
}

Python

classroom/snippets/classroom_create_course.py

View on GitHub

import google.auth
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError


def classroom_create_course():
  """
  Creates the courses the user has access to.
  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

  try:
    service = build("classroom", "v1", credentials=creds)
    course = {
        "name": "10th Grade Mathematics Probability-2",
        "section": "Period 3",
        "descriptionHeading": "Welcome to 10th Grade Mathematics",
        "description": """We'll be learning about about the
                                 polynomials from a
                                 combination of textbooks and guest lectures.
                                 Expect to be excited!""",
        "room": "302",
        "ownerId": "me",
        "courseState": "PROVISIONED",
    }
    # pylint: disable=maybe-no-member
    course = service.courses().create(body=course).execute()
    print(f"Course created:  {(course.get('name'), course.get('id'))}")
    return course

  except HttpError as error:
    print(f"An error occurred: {error}")
    return error


if __name__ == "__main__":
  classroom_create_course()

When you create a course, you can optionally add metadata such as the course description, time, or location.

Note: The name, courseState, and ownerId fields are always required when creating a course. You are also strongly encouraged to provide a unique Alias in the id field when creating the course to ensure that your application doesn't create duplicate courses.

In order to create a course, the user making the request must have the appropriate permissions in their user profile.

Courses are created with the courseState set to PROVISIONED by default; however, this can be overridden to ACTIVE. If the course is created in the PROVISIONED state, the teacher identified in the ownerId must accept the class in the Classroom UI or the course must be updated through the API to change the courseState to ACTIVE and make it available to their students.

Note: Consumer accounts (*@gmail.com) cannot create courses in ACTIVE state. Requests to do so will return 403: PERMISSION_DENIED.

Retrieve course details

You can retrieve a single course's metadata with the courses.get() method, as shown in the following sample:

.NET

classroom/snippets/ClassroomSnippets/GetCourse.cs

View on GitHub

using Google;
using Google.Apis.Auth.OAuth2;
using Google.Apis.Classroom.v1;
using Google.Apis.Classroom.v1.Data;
using Google.Apis.Services;
using System;

namespace ClassroomSnippets
{
    // Class to demonstrate the use of Classroom Get Course API
    public class GetCourse
    {
        /// <summary>
        /// Retrieve a single course's metadata.
        /// </summary>
        /// <param name="courseId">Id of the course.</param>
        /// <returns>a course, null otherwise.</returns>
        public static Course ClassroomGetCourse(string courseId)
        {
            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.ClassroomCourses);

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

                // Get the course details using course id
                Course course = service.Courses.Get(courseId).Execute();
                Console.WriteLine("Course '{0}' found.\n", course.Name);
                return course;
            }
            catch (Exception e)
            {
                // TODO(developer) - handle error appropriately
                if (e is AggregateException)
                {
                    Console.WriteLine("Credential Not found");
                }
                else if (e is GoogleApiException)
                {
                    Console.WriteLine("Course does not exist.");
                }
                else
                {
                    throw;
                }
            }
            return null;
        }
    }
}

Apps Script

classroom/snippets/getCourse.gs

View on GitHub

/**
 * Retrieves course by id.
 * @param {string} courseId
 * @see https://developers.google.com/classroom/reference/rest/v1/courses/get
 */
function getCourse(courseId) {
  try {
    // Get the course details using course id
    const course = Classroom.Courses.get(courseId);
    console.log('Course "%s" found. ', course.name);
  } catch (err) {
    // TODO (developer) - Handle Courses.get() exception of Handle Classroom API
    console.log('Failed to found course %s with error %s ', courseId, err.message);
  }
}

Go

classroom/snippets/getCourse.go

View on GitHub

ctx := context.Background()
srv, err := classroom.NewService(ctx, option.WithHTTPClient(client))
if err != nil {
	log.Fatalf("Unable to create classroom Client %v", err)
}
id := "123456"
course, err := srv.Courses.Get(id).Do()
if err != nil {
	log.Fatalf("Course unable to be retrieved %v", err)
}

Java

classroom/snippets/src/main/java/GetCourse.java

View on GitHub

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.Course;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.ArrayList;
import java.util.Arrays;

/* Class to demonstrate the use of Classroom Get Course API */
public class GetCourse {

  /* 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_COURSES));

  /**
   * Retrieve a single course's metadata.
   *
   * @param courseId - Id of the course to return.
   * @return a course
   * @throws IOException - if credentials file not found.
   * @throws GeneralSecurityException - if a new instance of NetHttpTransport was not created.
   */
  public static Course getCourse(String courseId) 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();

    Course course = null;
    try {
      course = service.courses().get(courseId).execute();
      System.out.printf("Course '%s' found.\n", course.getName());
    } catch (GoogleJsonResponseException e) {
      // TODO(developer) - handle error appropriately
      GoogleJsonError error = e.getDetails();
      if (error.getCode() == 404) {
        System.out.printf("Course with ID '%s' not found.\n", courseId);
      } else {
        throw e;
      }
    }
    return course;
  }
}

PHP

classroom/snippets/src/ClassroomGetCourse.php

View on GitHub

use Google\Client;
use Google\Service\Classroom;
use Google\Service\Exception;

function getCourse($courseId)
{
    /* 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.courses");
    $service = new Classroom($client);
    try {
        $course = $service->courses->get($courseId);
        printf("Course '%s' found.\n", $course->name);
        return $course;
    } catch (Exception $e) {
        if ($e->getCode() == 404) {
            printf("Course with ID '%s' not found.\n", $courseId);
        } else {
            throw $e;
        }
    }
}

Python

classroom/snippets/classroom_get_course.py

View on GitHub

import google.auth
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError


def classroom_get_course(course_id):
  """
  Prints the name of the 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
  course = None
  try:
    service = build("classroom", "v1", credentials=creds)
    course = service.courses().get(id=course_id).execute()
    print(f"Course found : {course.get('name')}")
  except HttpError as error:
    print(f"An error occurred: {error}")
    print(f"Course not found: {course_id}")
    return error
  return course


if __name__ == "__main__":
  # Put the course_id of course whose information needs to be fetched.
  classroom_get_course("course_id")

For a list of courses, use the courses.list(), as shown in the following sample:

.NET

classroom/snippets/ClassroomSnippets/ListCourses.cs

View on GitHub

using Google.Apis.Auth.OAuth2;
using Google.Apis.Classroom.v1;
using Google.Apis.Classroom.v1.Data;
using Google.Apis.Services;
using System;
using System.Collections.Generic;

namespace ClassroomSnippets
{
    // Class to demonstrate the use of Classroom List Course API
    public class ListCourses
    {
        /// <summary>
        /// Retrieves all courses with metadata.
        /// </summary>
        /// <returns>list of courses with its metadata, null otherwise.</returns>
        public static List<Course> ClassroomListCourses()
        {
            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.ClassroomCourses);

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

                string pageToken = null;
                var courses = new List<Course>();

                do
                {
                    var request = service.Courses.List();
                    request.PageSize = 100;
                    request.PageToken = pageToken;
                    var response = request.Execute();
                    courses.AddRange(response.Courses);
                    pageToken = response.NextPageToken;
                } while (pageToken != null);

                Console.WriteLine("Courses:");
                foreach (var course in courses)
                {
                    // Print the courses available in classroom
                    Console.WriteLine("{0} ({1})", course.Name, course.Id);
                } 
                return courses;
            }
            catch (Exception e)
            {
                // TODO(developer) - handle error appropriately
                if (e is AggregateException)
                {
                    Console.WriteLine("Credential Not found");
                }
                else if (e is ArgumentNullException)
                {
                    Console.WriteLine("No courses found.");
                }
                else
                {
                    throw;
                }
            }
            return null;
        }
    }
}

Apps Script

classroom/snippets/listCourses.gs

View on GitHub

/**
 * Lists all course names and ids.
 * @see https://developers.google.com/classroom/reference/rest/v1/courses/list
 */
function listCourses() {
  let courses = [];
  const pageToken = null;
  const optionalArgs = {
    pageToken: pageToken,
    pageSize: 100
  };
  try {
    const response = Classroom.Courses.list(optionalArgs);
    courses = response.courses;
    if (courses.length === 0) {
      console.log('No courses found.');
      return;
    }
    // Print the courses available in classroom
    console.log('Courses:');
    for ( const course in courses) {
      console.log('%s (%s)', courses[course].name, courses[course].id);
    }
  } catch (err) {
    // TODO (developer) - Handle exception
    console.log('Failed with error %s', err.message);
  }
}

Java

classroom/snippets/src/main/java/ListCourses.java

View on GitHub

import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
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.Course;
import com.google.api.services.classroom.model.ListCoursesResponse;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/* Class to demonstrate the use of Classroom List Course API */
public class ListCourses {

  /* 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_COURSES));

  /**
   * Retrieves all courses with metadata
   *
   * @return list of courses with its metadata
   * @throws IOException - if credentials file not found.
   * @throws GeneralSecurityException - if a new instance of NetHttpTransport was not created.
   */
  public static List<Course> listCourses() 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();

    String pageToken = null;
    List<Course> courses = new ArrayList<>();

    try {
      do {
        ListCoursesResponse response =
            service.courses().list().setPageSize(100).setPageToken(pageToken).execute();
        courses.addAll(response.getCourses());
        pageToken = response.getNextPageToken();
      } while (pageToken != null);

      if (courses.isEmpty()) {
        System.out.println("No courses found.");
      } else {
        System.out.println("Courses:");
        for (Course course : courses) {
          System.out.printf("%s (%s)\n", course.getName(), course.getId());
        }
      }
    } catch (NullPointerException ne) {
      // TODO(developer) - handle error appropriately
      System.err.println("No courses found.\n");
    }
    return courses;
  }
}

PHP

classroom/snippets/src/ClassroomListCourses.php

View on GitHub

use Google\Service\Classroom;
use Google\Client;

function listCourses(): array
{
    /* 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.courses");
    $service = new Classroom($client);
    $courses = [];
    $pageToken = '';

    do {
        $params = [
            'pageSize' => 100,
            'pageToken' => $pageToken
        ];
        $response = $service->courses->listCourses($params);
        $courses = array_merge($courses, $response->courses);
        $pageToken = $response->nextPageToken;
    } while (!empty($pageToken));

    if (count($courses) == 0) {
        print "No courses found.\n";
    } else {
        print "Courses:\n";
        foreach ($courses as $course) {
            printf("%s (%s)\n", $course->name, $course->id);
        }
    }
    return $courses;
}

Python

classroom/snippets/classroom_list_courses.py

View on GitHub

import google.auth
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError


def classroom_list_courses():
  """
  Prints the list of the courses the user has access to.
  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()
  try:
    service = build("classroom", "v1", credentials=creds)
    courses = []
    page_token = None

    while True:
      # pylint: disable=maybe-no-member
      response = (
          service.courses().list(pageToken=page_token, pageSize=100).execute()
      )
      courses.extend(response.get("courses", []))
      page_token = response.get("nextPageToken", None)
      if not page_token:
        break

    if not courses:
      print("No courses found.")
      return
    print("Courses:")
    for course in courses:
      print(f"{course.get('name'), course.get('id')}")
    return courses
  except HttpError as error:
    print(f"An error occurred: {error}")
    return error


if __name__ == "__main__":
  print("Courses available are-------")
  classroom_list_courses()

Note: Students and teachers can only retrieve their own courses. Administrators can retrieve all courses.

You can also list only the courses for a specific user. For more information, see Retrieve courses for a user.

Update course information

You can update some course metadata after the course is created. The following fields can be updated any time after the course is created:

• name
• section
• descriptionHeading
• description
• room
• courseState
• ownerId

Note: If the primary teacher account is deleted before course ownership is transferred to a co-teacher, some of the class features and API functionality for that course won't work.

To update all fields in a course, use the courses.update() method, as shown in the following sample:

.NET

classroom/snippets/ClassroomSnippets/UpdateCourse.cs

View on GitHub

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 Update Course API
    public class UpdateCourse
    {
        /// <summary>
        /// Update one field of course 
        /// </summary>
        /// <param name="courseId"></param>
        /// <returns></returns>
        /// <exception cref="GoogleApiException"></exception>
        public static Course ClassroomUpdateCourse(string courseId)
        {
            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.ClassroomCourses);

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

                Course course = service.Courses.Get(courseId).Execute();
                course.Section = "Period 3";
                course.Room = "302";
                course = service.Courses.Update(course, courseId).Execute();
                Console.WriteLine("Course '{0}' updated.\n", course.Name);
                return course;
            }
            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 update the course. Error message: {0}", e.Message);
                }
                else
                {
                    throw;
                }
            }

            return null;

        }
    }

}

Apps Script

classroom/snippets/courseUpdate.gs

View on GitHub

/**
 * Updates the section and room of Google Classroom.
 * @param {string} courseId
 * @see https://developers.google.com/classroom/reference/rest/v1/courses/update
 */
function courseUpdate(courseId) {
  try {
    // Get the course using course ID
    let course = Classroom.Courses.get(courseId);
    course.section = 'Period 3';
    course.room = '302';
    // Update the course
    course = Classroom.Courses.update(course, courseId);
    console.log('Course "%s" updated.', course.name);
  } catch (e) {
    // TODO (developer) - Handle exception
    console.log('Failed to update the course with error %s', e.message);
  }
}

Java

classroom/snippets/src/main/java/UpdateCourse.java

View on GitHub

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.Course;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.ArrayList;
import java.util.Arrays;

/* Class to demonstrate the use of Classroom Update Course API */
public class UpdateCourse {

  /* 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_COURSES));
  /**
   * Updates a course's metadata.
   *
   * @param courseId - Id of the course to update.
   * @return updated course
   * @throws IOException - if credentials file not found.
   * @throws GeneralSecurityException - if a new instance of NetHttpTransport was not created.
   */
  public static Course updateCourse(String courseId) 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();

    Course course = null;
    try {
      // Updating the section and room in a course
      course = service.courses().get(courseId).execute();
      course.setSection("Period 3");
      course.setRoom("302");
      course = service.courses().update(courseId, course).execute();
      // Prints the updated course
      System.out.printf("Course '%s' updated.\n", course.getName());
    } catch (GoogleJsonResponseException e) {
      // TODO(developer) - handle error appropriately
      GoogleJsonError error = e.getDetails();
      if (error.getCode() == 404) {
        System.err.println("Course does not exist.\n");
      } else {
        throw e;
      }
    }
    return course;
  }
}

PHP

classroom/snippets/src/ClassroomUpdateCourse.php

View on GitHub

use Google\Client;
use Google\Service\Classroom;

function updateCourse($courseId)
{
    /* 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.courses");
    $service = new Classroom($client);
    $course = $service->courses->get($courseId);
    $course->section = 'Period 3';
    $course->room = '302';
    $course = $service->courses->update($courseId, $course);
    printf("Course '%s' updated.\n", $course->name);
    return $course;
}

Python

classroom/snippets/classroom_update_course.py

View on GitHub

import google.auth
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError


def classroom_update_course(course_id):
  """
  Updates the courses names the user has access to.
  Load pre-authorized user credentials from the environment.
  TODO(developer) - See https://developers.google.com/identity
  for guides on implementing OAuth2 for the application.
  """
  # pylint: disable=maybe-no-member

  creds, _ = google.auth.default()

  try:
    service = build("classroom", "v1", credentials=creds)

    # Updates the section and room of Google Classroom.
    course = service.courses().get(id=course_id).execute()
    course["name"] = "10th Grade Physics - Light"
    course["section"] = "Period 4"
    course["room"] = "410"
    course = service.courses().update(id=course_id, body=course).execute()
    print(f" Updated Course is:  {course.get('name')}")
    return course

  except HttpError as error:
    print(f"An error occurred: {error}")
    return error


if __name__ == "__main__":
  # Put the course_id of course whose course needs to be updated.
  classroom_update_course("course_id")

You can also update specific fields using the courses.patch() method, as shown in the following sample:

.NET

classroom/snippets/ClassroomSnippets/PatchCourse.cs

View on GitHub

using Google.Apis.Auth.OAuth2;
using Google.Apis.Classroom.v1;
using Google.Apis.Classroom.v1.Data;
using Google.Apis.Services;
using System;
using Google;

namespace ClassroomSnippets
{
    // Class to demonstrate the use of Classroom Patch Course API
    public class PatchUpdate
    {
        /// <summary>
        /// Updates one or more fields in a course.
        /// </summary>
        /// <param name="courseId"></param>
        /// <returns></returns>
        /// <exception cref="GoogleApiException"></exception>
        public static Course ClassroomPatchUpdate(string courseId)
        {
            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.ClassroomCourses);

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

                var course = new Course
                {
                    Section = "Period 3",
                    Room = "302"
                };
                // Updates one or more fields of course.
                var request = service.Courses.Patch(course, courseId);
                request.UpdateMask = "section,room";
                course = request.Execute();
                Console.WriteLine("Course '{0}' updated.\n", course.Name);
                return course;
            }
            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 update the course. Error message: {0}", e.Message);
                }
                else
                {
                    throw ;
                }
            }

            return null;

        }
    }
}

Apps Script

classroom/snippets/patchCourse.gs

View on GitHub

/**
 * Updates the section and room of Google Classroom.
 * @param {string} courseId
 * @see https://developers.google.com/classroom/reference/rest/v1/courses/patch
 */
function coursePatch(courseId) {
  let course = {
    'section': 'Period 3',
    'room': '302'
  };
  const mask = {
    updateMask: 'section,room'
  };
  try {
    // Update section and room in course.
    course = Classroom.Courses.patch(body=course, id=courseId, updateMask=mask);
    console.log('Course "%s" updated.', course.name);
  } catch (err) {
    // TODO (developer) - Handle Courses.patch() exception
    console.log('Failed to update the course. Error message: %s', err.message);
  }
}

Java

classroom/snippets/src/main/java/PatchCourse.java

View on GitHub

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.Course;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.ArrayList;
import java.util.Arrays;

/* Class to demonstrate the use of Classroom Patch Course API */
public class PatchCourse {

  /* 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_COURSES));

  /**
   * Updates one or more fields in a course.
   *
   * @param courseId - Id of the course to update.
   * @return updated course
   * @throws IOException - if credentials file not found.
   * @throws GeneralSecurityException - if a new instance of NetHttpTransport was not created.
   */
  public static Course patchCourse(String courseId) 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();

    Course course = null;
    try {
      course = new Course().setSection("Period 3").setRoom("302");
      course = service.courses().patch(courseId, course).setUpdateMask("section,room").execute();
      System.out.printf("Course '%s' updated.\n", course.getName());
    } catch (GoogleJsonResponseException e) {
      // TODO(developer) - handle error appropriately
      GoogleJsonError error = e.getDetails();
      if (error.getCode() == 404) {
        System.err.println("Course does not exist.\n");
      } else {
        throw e;
      }
    }
    return course;
  }
}

PHP

classroom/snippets/src/ClassroomPatchCourse.php

View on GitHub

use Google\Service\Classroom;
use Google\Service\Classroom\Course;
use Google\Client;

function patchCourse($courseId)
{
    /* 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.courses");
    $service = new Classroom($client);

    try {
        $course = new Course([
            'section' => 'Period 3',
            'room' => '302'
        ]);
        $params = ['updateMask' => 'section,room'];
        $course = $service->courses->patch($courseId, $course, $params);
        printf("Course '%s' updated.\n", $course->name);
        return $course;
    } catch (Exception $e) {
        echo 'Message: ' . $e->getMessage();
    }
}

Python

classroom/snippets/classroom_patch_course.py

View on GitHub

import google.auth
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError


def classroom_patch_course(course_id):
  """
  Patch new course with existing course in the account the user has access to.
  Load pre-authorized user credentials from the environment.
  TODO(developer) - See https://developers.google.com/identity
  for guides on implementing OAuth2 for the application.
  """
  # pylint: disable=maybe-no-member

  creds, _ = google.auth.default()

  try:
    service = build("classroom", "v1", credentials=creds)
    course = {"section": "Period 3", "room": "313"}
    course = (
        service.courses()
        .patch(id=course_id, updateMask="section,room", body=course)
        .execute()
    )
    print(f" Course updated are: {course.get('name')}")
    return course
  except HttpError as error:
    print(f"An error occurred: {error}")


if __name__ == "__main__":
  # Put the course_id of course with whom we need to patch some extra
  # information.
  classroom_patch_course("course_id")

Transfer course ownership

Domain administrators can transfer ownership of courses between teachers within their domain by calling the following methods:

1. First, call teachers.create() to add a teacher to the course if they are not already a co-teacher.

2. Then, call courses.patch() and specify the co-teacher's email or user id in the ownerId field of the request object to update the course owner.

Warning: Transfer course ownership to a new teacher before the original course owner's account is deleted in the Admin Console. If the original course owner's account is deleted in the Admin Console before the steps above are performed, an InactiveCourseOwner error will be thrown. The domain administrator will have to restore the original course owner's account and retry the steps to begin transferring ownership.