Google Classroom - Get Folder ID for Course - php

Question

I am having a very difficult time figuring out how to retrieve the Google Drive folder associated with a particular Course (ID).
My understanding is that this value is available as the teacherFolder value:
See Here:
https://developers.google.com/classroom/reference/rest/v1/courses
"id": string,
"name": string,
"section": string,
"descriptionHeading": string,
"description": string,
"room": string,
"ownerId": string,
"creationTime": string,
"updateTime": string,
"enrollmentCode": string,
"courseState": enum(CourseState),
"alternateLink": string,
"teacherGroupEmail": string,
"courseGroupEmail": string,
"teacherFolder": {
object(DriveFolder)
},
But this is returned as an object that contains:
{
"id": string,
"title": string,
"alternateLink": string,
}
I am trying to get the Google Drive folder associated with the course in Google Classroom (by Course ID) so that I can upload a resource to the appropriate folder.
Please point me in the right direction.
(I am hoping to accomplish this via php.)

Answer 1

Based from the documentation:
Resource: Course
{
"id": string,
"name": string,
"section": string,
"descriptionHeading": string,
"description": string,
"room": string,
"ownerId": string,
"creationTime": string,
"updateTime": string,
"enrollmentCode": string,
"courseState": enum(CourseState),
"alternateLink": string,
"teacherGroupEmail": string,
"courseGroupEmail": string,
"teacherFolder": {
object(DriveFolder)
},
"courseMaterialSets": [
{
object(CourseMaterialSet)
}
],
"guardiansEnabled": boolean,
}
You can check out the CourseMaterialSet property which hold all related marterials to the course.
CourseMaterialSet
A set of materials that appears on the "About" page of the course. These materials might include a syllabus, schedule, or other background information relating to the course as a whole.
{
"title": string,
"materials": [
{
object(CourseMaterial)
}
],
}
CourseMaterial
A material attached to a course as part of a material set.
{
// Union field material can be only one of the following:
"driveFile": {
object(DriveFile)
},
"youTubeVideo": {
object(YouTubeVideo)
},
"link": {
object(Link)
},
"form": {
object(Form)
},
// End of list of possible types for union field material.
}
Hope this helps.