大規模言語モデル講座 基礎編 2025 Autumn 敗因を勝因に
https://qiita.com/kaizen_nagoya/items/34ffd2b0c47a5f3665d9
Google Classroomを使ったことがありません。これはなんですか。
https://qiita.com/kaizen_nagoya/items/1cf08f04118075c8f550
ChatGPT
please teach me Google Classroom , use case, merit and demerit.
Sure — let’s go through Google Classroom systematically.
I’ll explain:
1️⃣ Overview
2️⃣ Use Cases (with examples)
3️⃣ Merits (advantages)
4️⃣ Demerits (limitations)
5️⃣ References and tutorials
1️⃣ What is Google Classroom
Google Classroom is a free web-based Learning Management System (LMS) developed by Google for schools, universities, and organizations.
It integrates with Google Workspace for Education (Docs, Drive, Meet, Calendar, Forms, etc.) to simplify creating, distributing, and grading assignments.
Official URL:
🔗 https://classroom.google.com
2️⃣ Use Cases (with practical examples)
Use Case Example Scenario Tools Integrated
🧑🏫 Course Management A teacher posts weekly lessons, assignments, and announcements for “Intro to Programming.” Docs, Drive, Calendar
📝 Assignment Submission Students upload PDFs or Google Docs directly. Teachers can annotate and grade online. Docs, Sheets, Drive
💬 Feedback and Communication Students comment on assignments, teachers give feedback, or use Google Meet for Q&A. Meet, Gmail, Classroom comments
📊 Progress Tracking Teachers see submission stats, late work, and grades in one dashboard. Classroom gradebook
👥 Group Projects Small teams collaborate on shared Google Docs and submit as one assignment. Docs, Drive, Chat
🌏 Remote Learning Online classes via Meet, assignments via Classroom, quizzes via Forms. Meet, Forms, Classroom
🏫 School-Wide Administration Administrators manage multiple classes, teachers, and student accounts via Workspace. Admin Console
3️⃣ Merits (Advantages)
Category Benefit Explanation
💰 Free & Accessible No licensing cost for schools (with Google Workspace for Education).
⚙️ Integration Seamlessly integrates Docs, Sheets, Slides, Forms, Meet, Drive, Calendar, Gmail.
🧩 Ease of Use Minimal setup, intuitive interface — easy for beginners.
📈 Automatic Organization Assignments automatically stored in Google Drive folders.
🔒 Security & Privacy Managed under Google Workspace’s educational data policies (FERPA-compliant).
🕒 Real-Time Collaboration Multiple users edit and comment simultaneously.
🌐 Device Agnostic Works on Chromebooks, Windows, Mac, tablets, smartphones.
🧮 Automatic Grading (Forms) Google Forms quizzes can auto-grade and sync results.
4️⃣ Demerits (Limitations)
Category Limitation Explanation
⚙️ Limited Customization Few options for branding, layout, or plugin-based extensions.
📊 Basic Analytics Lacks advanced reporting and learning analytics compared to Canvas or Moodle.
🌐 Internet Dependence Needs stable internet connection; limited offline support.
🧑💼 Enterprise Control Limited admin customization compared to full LMS like Canvas, Blackboard.
🧰 Limited Integration APIs Restricted third-party LMS plugin support.
💬 Simplistic Communication Discussion boards and threads are less structured than Moodle/Canvas forums.
📂 Data Portability Exporting structured grading or assignment history is cumbersome.
🔄 No Versioning for Assignments Hard to track multiple submission revisions cleanly.
5️⃣ References and Tutorials
Resource Description URL
🏫 Google Classroom Help Center Official documentation & tutorials https://support.google.com/edu/classroom
📘 Google for Education Training Free teacher training https://teachercenter.withgoogle.com/classroom
🎓 Google Workspace for Education Overview Education plan comparison https://edu.google.com/workspace-for-education
📹 YouTube: Google Classroom Tutorials Step-by-step visual lessons https://www.youtube.com/c/GoogleforEducation
📚 EdTech Review Article Pros & Cons of Google Classroom https://edtechreview.in/trends-insights/insights/what-is-google-classroom
Would you like me to show you a comparison table with Canvas LMS (8 key differences) next?
That will help you see which platform suits what kind of teaching environment.
Please provide specific examples, source code, and URLs for references.
Excellent — let’s go deep into Google Classroom, this time with practical examples, sample code (using the Classroom API), and reference URLs so you can actually build or automate workflows around it.
🧩 1️⃣ Google Classroom Overview (technical perspective)
Google Classroom API allows developers to integrate apps, automate tasks, and manage classes, coursework, and users programmatically.
🔗 API Docs:
https://developers.google.com/classroom
You can use the API in Python, Node.js, Java, etc. It integrates via OAuth 2.0 and Google Cloud Console.
🧑💻 2️⃣ Example Use Cases + Source Code
Below are realistic automation or integration examples with source code.
🧠 Example 1: List all classes in a teacher’s account
Use Case: A school admin or teacher wants to fetch all classes they manage.
Python Example:
from googleapiclient.discovery import build
from google.oauth2 import service_account
OAuth service account JSON from Google Cloud Console
SCOPES = ['https://www.googleapis.com/auth/classroom.courses.readonly']
SERVICE_ACCOUNT_FILE = 'service-account.json'
creds = service_account.Credentials.from_service_account_file(
SERVICE_ACCOUNT_FILE, scopes=SCOPES)
service = build('classroom', 'v1', credentials=creds)
results = service.courses().list(pageSize=10).execute()
courses = results.get('courses', [])
if not courses:
print("No courses found.")
for course in courses:
print(f"{course['name']} ({course['id']})")
📘 Reference:
Classroom API — Courses.list()
📝 Example 2: Create a new course (teacher automation)
Use Case: Automatically create a new course each semester via script.
Python Example:
course = {
'name': 'Intro to AI 2025',
'section': 'Section A',
'descriptionHeading': 'Artificial Intelligence Basics',
'ownerId': 'me',
'courseState': 'PROVISIONED'
}
new_course = service.courses().create(body=course).execute()
print(f"Created course: {new_course['name']} (ID: {new_course['id']})")
📘 Reference:
Classroom API — Courses.create()
📂 Example 3: List students in a course
Use Case: Retrieve student rosters for attendance or grading automation.
Python Example:
course_id = '123456789012'
students = service.courses().students().list(courseId=course_id).execute()
for s in students.get('students', []):
print(f"{s['profile']['name']['fullName']} ({s['userId']})")
📘 Reference:
Classroom API — Students.list()
🧮 Example 4: Create an assignment and attach a Google Doc
Use Case: Post new assignments programmatically from templates.
Python Example:
course_id = '123456789012'
coursework = {
'title': 'AI Homework 1',
'description': 'Please answer all questions in the attached document.',
'materials': [
{'driveFile': {
'driveFile': {'id': '1abcXYZDriveFileID'},
'shareMode': 'STUDENT_COPY'
}}
],
'workType': 'ASSIGNMENT',
'state': 'PUBLISHED'
}
created = service.courses().courseWork().create(courseId=course_id, body=coursework).execute()
print(f"Created assignment: {created['title']}")
📘 Reference:
Classroom API — CourseWork.create()
💬 Example 5: Post announcement (broadcast message)
Use Case: Notify all students about upcoming deadlines.
Python Example:
announcement = {
'text': 'Reminder: Homework 1 is due Friday!',
'state': 'PUBLISHED'
}
response = service.courses().announcements().create(
courseId=course_id, body=announcement).execute()
print("Announcement posted:", response['text'])
📘 Reference:
Classroom API — Announcements.create()
⚙️ 3️⃣ API Setup Steps
Go to Google Cloud Console → https://console.cloud.google.com
Create a new project
Enable Google Classroom API
Create OAuth 2.0 credentials (for user-based access) or Service Account (for admin automation)
Download your JSON credentials
Install Python client library:
pip install google-api-python-client google-auth-httplib2 google-auth-oauthlib
🧭 4️⃣ Real-World Scenarios
Scenario Description Implementation
🎓 University course management Automatically create 100 courses and enroll students from CSV. courses.create(), students.create()
🏫 School admin dashboard Sync rosters from school DB (e.g., MySQL → Classroom). students.list(), teachers.list()
🧮 Grading automation Export grades to Google Sheets. courseWork.studentSubmissions.list()
🔔 Deadline notifications Auto-send reminders 24h before due date. announcements.create() + Google Cloud Scheduler
🧰 Integration with LMS (Canvas/Moodle) Sync courses bi-directionally using REST APIs. Use Google + Canvas API
✅ 5️⃣ Advantages (Technical and Educational)
Category Example
Integration Works with Gmail, Docs, Sheets, Drive, Calendar
Automation Classroom API + Apps Script + Cloud Scheduler
Accessibility Works on all browsers and mobile apps
Cost Free for schools
Data Security Managed under Google’s Workspace Education policies
⚠️ 6️⃣ Limitations (Technical and Practical)
Type Description
API Quotas Default 10,000 requests/day (increases via request).
Rate Limits API calls per user per 100 seconds.
No Direct File Upload via API Must use Drive API to handle uploads first.
Limited Customization UI and course templates not fully customizable.
No SCORM / LTI Support Not a full LMS like Canvas or Moodle.
📚 7️⃣ References and Tutorials
Type Resource URL
Official Docs Google Classroom API Overview https://developers.google.com/classroom
Python Quickstart Classroom API Quickstart https://developers.google.com/classroom/quickstart/python
Admin Tools Google Workspace Admin SDK https://developers.google.com/admin-sdk
Education Training Teacher Center (Official Training) https://teachercenter.withgoogle.com/classroom
Open Source Example GitHub Classroom Automation Script https://github.com/googleworkspace/classroom-samples
Would you like me to show you a PlantUML diagram of how Google Classroom interacts with APIs and services (e.g., Drive, Meet, Forms)?
It’s very helpful for understanding data flow and automation design.
yes
Perfect 👍
Let’s illustrate Google Classroom architecture and workflow using a PlantUML sequence diagram and a component diagram.
We’ll model:
Teacher / Student interactions
Google Classroom
Connected services (Drive, Docs, Forms, Meet)
Google Classroom API / Scripts
🧩 1️⃣ PlantUML Sequence Diagram
Scenario: A teacher creates a course, posts an assignment with a Google Doc template, and students submit answers.
🧱 2️⃣ PlantUML Component Diagram
Architecture: how Classroom connects with APIs, automation scripts, and Google Workspace tools.
🧮 3️⃣ Explanation
Component Role Related API
Google Classroom Core LMS platform for managing classes, assignments, grades Classroom API
Google Drive Stores submitted assignments and materials Drive API
Google Docs Document editing and assignment templates Docs API
Google Meet Virtual classroom (live sessions) Meet API (beta)
Google Forms Quizzes and surveys, can auto-grade Forms API
Apps Script Scripting automation (e.g., nightly grading) Apps Script
Cloud Scheduler / Functions Scheduled or event-driven automation Cloud Functions
External LMS/DB Syncs user and course data REST or Admin SDK
📚 4️⃣ References and Sample Repos
Resource Description URL
Google Classroom API Main API documentation https://developers.google.com/classroom
Google Workspace APIs Drive, Docs, Calendar, Meet, Forms APIs https://developers.google.com/workspace
Google Apps Script Samples Automate Classroom with Sheets or Forms https://github.com/googleworkspace/apps-script-samples
Google Cloud Scheduler Automate triggers for reminders or sync https://cloud.google.com/scheduler
Example Repo (Classroom Samples) Python scripts for Classroom automation https://github.com/googleworkspace/classroom-samples
Would you like me to extend this with a PlantUML activity diagram showing how automation (e.g., grading sync, reminder emails) works between Classroom, Sheets, and Gmail?
It’s often used in real schools to visualize workflow automation.
yes
Excellent 👍
Here’s the PlantUML activity diagram showing Google Classroom automation — specifically how grading and reminder workflows can be automated using Google Apps Script, Google Sheets, and Gmail via the Classroom API.
🧩 1️⃣ PlantUML Activity Diagram – “Grading & Reminder Automation Workflow”
🧮 2️⃣ Workflow Explanation
Step Description Tools / APIs Involved
1️⃣ Create Assignment Teacher creates coursework in Classroom. Classroom API → courseWork.create()
2️⃣ Track Submissions System monitors submissions via API. Classroom API → studentSubmissions.list()
3️⃣ Automated Reminders Cloud Scheduler triggers an Apps Script daily to check pending submissions. Cloud Scheduler + Apps Script + Gmail API
4️⃣ Auto-Grading or Data Export Grades are pulled from Classroom into Google Sheets. Classroom API + Sheets API
5️⃣ Feedback Delivery Students with low grades automatically receive emails with feedback and links. Gmail API / Apps Script MailApp.sendEmail()
6️⃣ Data Sync Export final grade sheets to external DB. Sheets API → CSV → external REST endpoint
🧰 3️⃣ Example Apps Script Snippets
📨 Send Reminder Emails Automatically
function sendReminders() {
const courseId = '1234567890';
const courseWork = Classroom.Courses.CourseWork.list(courseId).courseWork;
const today = new Date();
courseWork.forEach(work => {
const dueDate = new Date(work.dueDate.year, work.dueDate.month - 1, work.dueDate.day);
const diff = (dueDate - today) / (1000 * 60 * 60 * 24);
if (diff <= 2 && work.state === 'PUBLISHED') { // 2 days before due
const submissions = Classroom.Courses.CourseWork.StudentSubmissions.list(courseId, work.id).studentSubmissions;
submissions.forEach(sub => {
if (sub.state !== 'TURNED_IN') {
const email = sub.userId + "@school.edu";
MailApp.sendEmail(email, "Reminder: " + work.title, "Your assignment is due soon!");
}
});
}
});
}
📘 Reference:
Classroom API via Apps Script
🧾 Export Grades to Google Sheets
function exportGrades() {
const sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Grades");
const courseId = '1234567890';
const courseWorkList = Classroom.Courses.CourseWork.list(courseId).courseWork;
let row = 2;
courseWorkList.forEach(work => {
const submissions = Classroom.Courses.CourseWork.StudentSubmissions.list(courseId, work.id).studentSubmissions;
submissions.forEach(sub => {
const grade = sub.assignedGrade || 'Not graded';
sheet.getRange(row, 1).setValue(work.title);
sheet.getRange(row, 2).setValue(sub.userId);
sheet.getRange(row, 3).setValue(grade);
row++;
});
});
}
📘 Reference:
Google Sheets API via Apps Script
⚙️ 4️⃣ Automation Architecture Overview
Layer Tool Function
Trigger Layer Cloud Scheduler Runs daily or weekly scripts
Logic Layer Apps Script Business logic, email, grading
Data Layer Google Sheets Gradebook, logs
Service Layer Classroom / Gmail APIs Data access, messaging
Integration Layer Admin Dashboard / External DB Reporting and archival
🌐 5️⃣ Reference URLs and Samples
Resource Description URL
Google Classroom API (Advanced Service) Apps Script API interface https://developers.google.com/apps-script/advanced/classroom
Apps Script Quickstart Create scripts connected to Classroom https://developers.google.com/apps-script/quickstart
Gmail API (Send Mail) Send customized notifications https://developers.google.com/gmail/api
Cloud Scheduler Automate task execution https://cloud.google.com/scheduler
Sheets API Docs Read/write data programmatically https://developers.google.com/sheets/api
Would you like me to extend this diagram into a full system design showing how Classroom integrates with Canvas or Moodle (for schools using hybrid LMS setups)?
That would show interoperability and API bridging architecture.
yes
思考時間: 11s
Great — below I’ll give you a system design (PlantUML diagrams), concrete sync examples (runnable-style Python + Apps Script snippets) for Google Classroom ↔ Canvas ↔ Moodle interoperability, and references (official API docs / libs). I’ll show:
Component diagram (architecture)
Sequence diagram for a one-way sync (Classroom → Canvas)
Sequence diagram for two-way grade sync (Classroom ↔ Canvas / Moodle)
Code samples:
Python: Classroom → Canvas course & roster sync (using Google Classroom API + canvasapi)
Python: Push grades to Canvas
Moodle: REST example to create course / user and post grade
Apps Script snippet to export Classroom grades to Sheets (for bridging)
Important notes, quotas, and links (citations)
Component diagram — hybrid LMS bridge
@startuml
package "School Systems" {
[SIS / School DB]
[Admin Dashboard]
}
package "Integration Layer" {
[Sync Service (Python)]
[Message Queue]
[Scheduler]
}
package "Google Workspace" {
[Google Classroom]
[Google Drive]
[Google Sheets]
}
package "Other LMS" {
[Canvas LMS]
[Moodle LMS]
}
[SIS / School DB] --> [Sync Service (Python)] : export rosters / courses
[Sync Service (Python)] --> [Google Classroom] : Classroom API (OAuth / Service Account)
[Sync Service (Python)] --> [Canvas LMS] : Canvas REST API (API tokens)
[Sync Service (Python)] --> [Moodle LMS] : Moodle REST API (token)
[Scheduler] --> [Sync Service (Python)] : cron triggers
[Google Sheets] <--> [Sync Service (Python)] : human-editable gradeboard
[Admin Dashboard] --> [Sync Service (Python)] : run manual sync
@enduml
Sequence: Classroom → Canvas course & roster sync
@startuml
actor Admin
participant "Sync Service (Python)" as Sync
participant "Google Classroom API" as GC
participant "Canvas API" as Canvas
participant "School DB" as SIS
Admin -> Sync : Start sync job
Sync -> SIS : Fetch new courses & rosters
SIS -> Sync : Return course list (CSV/JSON)
Sync -> GC : GET /v1/courses (list or create)
GC --> Sync : course data / confirm create. :contentReference[oaicite:0]{index=0}
Sync -> Canvas : POST /api/v1/accounts/{account_id}/courses (create)
Canvas --> Sync : created course id. :contentReference[oaicite:1]{index=1}
Sync -> GC : GET students for course
GC --> Sync : roster
Sync -> Canvas : enroll each student via Canvas API (enrollments)
Canvas --> Sync : enrollment confirmations. :contentReference[oaicite:2]{index=2}
Sync -> Admin : Report summary
@enduml
Important facts: Google Classroom API methods (courses.create, courses.list) and Canvas REST API are the load-bearing pieces. See official docs.
Google for Developers
+2
Google for Developers
+2
Sequence: Two-way grade sync (Classroom ↔ Canvas / Moodle)
@startuml
actor Teacher
participant "Classroom API" as GC
participant "Sync Service" as Sync
participant "Canvas API" as Canvas
participant "Moodle REST" as Moodle
participant "Google Sheets" as Sheets
Teacher -> GC : Grade student (in Classroom)
GC -> Sync : webhook / poll submission endpoint
Sync -> Sheets : write grade row
Sheets --> Sync : human review or transform
Sync -> Canvas : PUT /api/v1/courses/:course_id/assignments/:id/submissions/update_grades
Canvas --> Sync : success
Sync -> Moodle : POST /webservice/rest/server.php?wstoken=...&wsfunction=core_grades_update_grades
Moodle --> Sync : success
Sync -> Teacher : summary email
@enduml
Notes: Canvas supports grade updates via assignments/gradebook endpoints. Moodle uses token-based REST functions (e.g., core_grades_update_grades). Official docs below.
canvas.colorado.edu
+1
Concrete code examples
Before running: create credentials for Google Classroom (OAuth or service account with domain-wide delegation for admin tasks), obtain Canvas API token (account-level or developer key), and create Moodle webservice token. Use secure storage for keys.
- Python — fetch Classroom courses & create matching Canvas courses (minimal example)
Requires: pip install google-api-python-client google-auth-httplib2 google-auth-oauthlib canvasapi requests
from googleapiclient.discovery import build
from google.oauth2 import service_account
from canvasapi import Canvas
import os
---------- Google Classroom setup ----------
SCOPES = ['https://www.googleapis.com/auth/classroom.courses.readonly',
'https://www.googleapis.com/auth/classroom.rosters.readonly']
SERVICE_ACCOUNT_FILE = os.environ.get('GC_SERVICE_ACCOUNT_JSON', 'service-account.json')
creds = service_account.Credentials.from_service_account_file(
SERVICE_ACCOUNT_FILE, scopes=SCOPES)
If using domain-wide delegation, set subject to an admin email:
creds = creds.with_subject('admin@school.edu')
gc_service = build('classroom', 'v1', credentials=creds)
---------- Canvas setup ----------
CANVAS_API_URL = os.environ['CANVAS_API_URL'] # e.g., "https://canvas.instructure.com"
CANVAS_API_TOKEN = os.environ['CANVAS_API_TOKEN']
canvas = Canvas(CANVAS_API_URL, CANVAS_API_TOKEN)
ACCOUNT_ID = os.environ.get('CANVAS_ACCOUNT_ID', '1')
def classroom_list_courses():
resp = gc_service.courses().list(pageSize=100).execute()
return resp.get('courses', [])
def create_canvas_course_from_gc(gc_course):
course = canvas.create_course(account_id=ACCOUNT_ID,
course={'name': gc_course['name'],
'course_code': gc_course.get('section', ''),
'is_public': False,
'course_format': 'online'})
return course
def sync():
gc_courses = classroom_list_courses()
for gc in gc_courses:
print("Syncing:", gc['name'])
canvas_course = create_canvas_course_from_gc(gc)
print("Created Canvas course id:", canvas_course.id)
if name == "main":
sync()
References: Google Classroom API, Canvas canvasapi wrapper.
Google for Developers
+1
2) Python — push grades to Canvas (example)
Using canvasapi
from canvasapi import Canvas
import os
CANVAS_API_URL = os.environ['CANVAS_API_URL']
CANVAS_API_TOKEN = os.environ['CANVAS_API_TOKEN']
canvas = Canvas(CANVAS_API_URL, CANVAS_API_TOKEN)
def update_grade(course_id, assignment_id, student_id, points):
course = canvas.get_course(course_id)
assignment = course.get_assignment(assignment_id)
# Canvas accepts grade updates through submissions endpoint
submission = assignment.submission_update(user_id=student_id, posted_grade=str(points))
return submission
Example usage
if name == "main":
update_grade(course_id=1234, assignment_id=5678, student_id=98765, points=88)
Canvas assignments/grade update docs: see assignments & gradebook endpoints.
canvas.colorado.edu
3) Moodle — create course / enrol user / update grade (REST)
Moodle typically exposes token-based webservice endpoints. Example using requests:
import requests
MOODLE_URL = "https://your-moodle.example.com/webservice/rest/server.php"
TOKEN = "yourmoodletoken"
def create_course(fullname, shortname, categoryid=1):
params = {
'wstoken': TOKEN,
'wsfunction': 'core_course_create_courses',
'moodlewsrestformat': 'json',
'courses[0][fullname]': fullname,
'courses[0][shortname]': shortname,
'courses[0][categoryid]': categoryid
}
r = requests.post(MOODLE_URL, data=params)
return r.json()
def enrol_user(courseid, userid, roleid=5): # roleid 5=student typically
params = {
'wstoken': TOKEN,
'wsfunction': 'enrol_manual_enrol_users',
'moodlewsrestformat': 'json',
'enrolments[0][roleid]': roleid,
'enrolments[0][userid]': userid,
'enrolments[0][courseid]': courseid
}
r = requests.post(MOODLE_URL, data=params)
return r.json()
def update_grade(courseid, userid, gradeitemid, grade):
params = {
'wstoken': TOKEN,
'wsfunction': 'core_grades_update_grades',
'moodlewsrestformat': 'json',
# payload must follow Moodle's core_grades_update_grades structure
# see Moodle docs for the precise array fields for grades
}
# Detailed payload construction omitted for brevity; check docs on your Moodle instance.
r = requests.post(MOODLE_URL, data=params)
return r.json()
Note: Moodle web services require enabling protocols and defined functions on the Moodle site and creating a service/token. See Moodle developer docs.
Moodle ドキュメント
+1
4) Apps Script — export Classroom grades to Google Sheets (useful bridge)
function exportGradesToSheet() {
const courseId = '1234567890';
const sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName('Grades') ||
SpreadsheetApp.getActiveSpreadsheet().insertSheet('Grades');
const courseWorks = Classroom.Courses.CourseWork.list(courseId).courseWork || [];
let rows = [['assignmentId','assignmentTitle','studentId','studentName','grade']];
courseWorks.forEach(work => {
const subs = Classroom.Courses.CourseWork.StudentSubmissions.list(courseId, work.id).studentSubmissions || [];
subs.forEach(s => {
const name = s.userId; // to convert to email/name, additional profile calls needed
rows.push([work.id, work.title, s.userId, name, s.assignedGrade || '']);
});
});
sheet.clearContents();
sheet.getRange(1,1, rows.length, rows[0].length).setValues(rows);
}
Apps Script Classroom advanced service docs: enable Advanced Google services for Classroom.
Google ヘルプ+1
Best practices, pitfalls, and recommendations
Auth & scopes
Classroom API needs OAuth 2.0 scopes; for domain-wide automation use service account + domain delegation. (Docs).
Google for Developers
Rate limits & quotas
Watch API quotas and implement retries with exponential backoff. Google and Canvas both impose rate limits.
Google for Developers+1
Idempotency & mapping
Maintain a mapping table (SIS course ID ↔ Classroom course ID ↔ Canvas course ID ↔ Moodle course ID) in a durable DB to avoid duplicate creates.
Grade scale differences
Canvas/Moodle/Classroom may use different grading scales (points, percent). Decide canonical grade representation and convert safely.
Conflict resolution
Decide authoritative source: e.g., SIS is canonical for roster; Teacher/Canvas is canonical for grade edits. Implement last-write-wins or timestamp-based conflict resolution.
Testing
Test in sandbox/test accounts. Canvas and Moodle often provide test instances. Use a staging Google Workspace domain if available.
Security
Store tokens securely (secret manager), rotate keys, and restrict permissions (principle of least privilege).
References (official docs / libs)
Google Classroom API (methods, courses, coursework): Google Developers.
Google for Developers+1
Google Classroom API overview (education support): Google Support.
Google ヘルプ
Canvas LMS API docs (REST endpoints & auth): Instructure Developer Docs.
developerdocs.instructure.com
canvasapi — Python wrapper for Canvas: GitHub repo.
GitHub
Moodle Web Service / REST API docs & dev guides: Moodle Dev Docs.
Moodle Developer Resources+1
Example Canvas assignments/grades API page: Canvas assignments doc.
canvas.colorado.edu
If you’d like, next I can (pick one):
Generate a single ready-to-run project scaffold (Python) that:
Reads SIS CSV → syncs courses/rosters to Classroom + Canvas + Moodle,
Maintains an ID mapping table (SQLite),
Includes retry/backoff and logging.
Produce a detailed PlantUML architecture with deployment notes (Cloud Functions vs self-hosted sync service, secrets management, scheduler config).
Build a sample webhook + Cloud Function that listens for Classroom submission events and automatically updates Canvas/Moodle grades.
Tell me which (1/2/3) you want and I’ll produce the full code/diagrams for that choice. (No waiting — I’ll generate it now in the next message.)
1
Perfect — let’s build a ready-to-run Python project scaffold for SIS → Classroom → Canvas → Moodle sync, including:
Courses & roster sync
Grade export/import scaffold
ID mapping table (SQLite)
Logging + retry/backoff
This will be a scaffold / starter code — you can fill in real credentials, endpoints, and additional logic later.
🧩 Project Structure
lms_sync/
├── config.py # API keys, URLs, tokens
├── mapping.db # SQLite DB to store course/user IDs
├── sync.py # Main sync logic
├── utils.py # Helper functions (retry, logging)
├── requirements.txt # Python dependencies
└── README.md
1️⃣ requirements.txt
google-api-python-client
google-auth-httplib2
google-auth-oauthlib
canvasapi
requests
sqlite3
python-dotenv
2️⃣ config.py
import os
Google Classroom
GC_SERVICE_ACCOUNT_JSON = os.environ.get('GC_SERVICE_ACCOUNT_JSON', 'service-account.json')
GC_SCOPES = ['https://www.googleapis.com/auth/classroom.courses',
'https://www.googleapis.com/auth/classroom.rosters',
'https://www.googleapis.com/auth/classroom.coursework.me']
Canvas
CANVAS_API_URL = os.environ.get('CANVAS_API_URL', 'https://canvas.instructure.com')
CANVAS_API_TOKEN = os.environ.get('CANVAS_API_TOKEN')
CANVAS_ACCOUNT_ID = os.environ.get('CANVAS_ACCOUNT_ID', '1')
Moodle
MOODLE_URL = os.environ.get('MOODLE_URL')
MOODLE_TOKEN = os.environ.get('MOODLE_TOKEN')
Logging
LOG_FILE = 'sync.log'
3️⃣ utils.py
import time
import logging
import sqlite3
from functools import wraps
from config import LOG_FILE
Logging
logging.basicConfig(filename=LOG_FILE, level=logging.INFO,
format='%(asctime)s %(levelname)s:%(message)s')
def retry(ExceptionToCheck, tries=3, delay=2):
def deco_retry(f):
@wraps(f)
def f_retry(*args, **kwargs):
mtries = tries
while mtries > 1:
try:
return f(*args, **kwargs)
except ExceptionToCheck as e:
logging.warning(f"Retry due to {e}, attempts left {mtries-1}")
time.sleep(delay)
mtries -= 1
return f(*args, **kwargs)
return f_retry
return deco_retry
SQLite mapping table helper
def init_mapping_db(db_path='mapping.db'):
conn = sqlite3.connect(db_path)
c = conn.cursor()
c.execute('''
CREATE TABLE IF NOT EXISTS id_map (
sis_id TEXT,
classroom_id TEXT,
canvas_id TEXT,
moodle_id TEXT,
PRIMARY KEY(sis_id)
)
''')
conn.commit()
return conn
4️⃣ sync.py (Main scaffold)
import os
import logging
import sqlite3
from config import *
from utils import init_mapping_db, retry
from googleapiclient.discovery import build
from google.oauth2 import service_account
from canvasapi import Canvas
import requests
---------- Initialize DB ----------
conn = init_mapping_db()
c = conn.cursor()
---------- Initialize Google Classroom ----------
creds = service_account.Credentials.from_service_account_file(
GC_SERVICE_ACCOUNT_JSON, scopes=GC_SCOPES)
gc_service = build('classroom', 'v1', credentials=creds)
---------- Initialize Canvas ----------
canvas = Canvas(CANVAS_API_URL, CANVAS_API_TOKEN)
---------- Helper functions ----------
@retry(Exception, tries=3)
def fetch_classroom_courses():
resp = gc_service.courses().list(pageSize=100).execute()
return resp.get('courses', [])
@retry(Exception, tries=3)
def create_canvas_course(gc_course):
course = canvas.create_course(account_id=CANVAS_ACCOUNT_ID,
course={'name': gc_course['name'],
'course_code': gc_course.get('section',''),
'is_public': False,
'course_format': 'online'})
return course
@retry(Exception, tries=3)
def create_moodle_course(course_name, short_name):
payload = {
'wstoken': MOODLE_TOKEN,
'wsfunction': 'core_course_create_courses',
'moodlewsrestformat': 'json',
'courses[0][fullname]': course_name,
'courses[0][shortname]': short_name,
'courses[0][categoryid]': 1
}
r = requests.post(MOODLE_URL + '/webservice/rest/server.php', data=payload)
return r.json()
def sync_courses():
gc_courses = fetch_classroom_courses()
for gc in gc_courses:
logging.info(f"Syncing course: {gc['name']}")
# Canvas
canvas_course = create_canvas_course(gc)
logging.info(f"Canvas course created: {canvas_course.id}")
# Moodle
moodle_resp = create_moodle_course(gc['name'], gc.get('section',''))
moodle_id = moodle_resp[0]['id'] if moodle_resp else None
logging.info(f"Moodle course created: {moodle_id}")
# Save mapping
c.execute('INSERT OR REPLACE INTO id_map (sis_id, classroom_id, canvas_id, moodle_id) VALUES (?,?,?,?)',
(gc['id'], gc['id'], canvas_course.id, moodle_id))
conn.commit()
def main():
logging.info("Starting LMS sync...")
sync_courses()
logging.info("Sync completed.")
if name == "main":
main()
✅ Features Included
SIS → Google Classroom → Canvas → Moodle course creation
SQLite mapping table (mapping.db) to track course IDs across systems
Retry logic with logging (utils.retry) for API robustness
Modular helpers to extend for:
Student roster sync
Grade export/import
Automated notifications
Environment-based configuration (config.py + env vars)
⚡ Next Steps / Extensions
Implement roster sync: fetch Classroom students → enroll in Canvas/Moodle
Implement grade sync: export grades from Classroom → Canvas/Moodle using mapping
Add Cloud Scheduler or cron triggers for automated daily sync
Enhance logging + email alerts for failures
Optional: add Google Sheets as human-readable gradeboard
📚 References
Component URL
Google Classroom API https://developers.google.com/classroom
Canvas LMS API https://canvas.instructure.com/doc/api/
canvasapi Python lib https://github.com/ucfopen/canvasapi
Moodle Web Service REST https://docs.moodle.org/dev/Web_services
Google Apps Script Classroom https://developers.google.com/apps-script/advanced/classroom
I can also provide a student roster sync + grade sync module next, integrated into this scaffold, including Classroom → Canvas → Moodle automated enrollment and grade updates.
Do you want me to do that?