API

/courses
/courses/:courseId

/lessons
/lessons/:lessonId

/exercises

- courseId?: string
- lessonId?: string

/exercises/:exerciseId

/courses
/courses/:courseId/lessons
/courses/:courseId/lessons/:lessonId
/courses/:courseId/lessons/:lessonId/exercises
/courses/:courseId/lessons/:lessonId/exercises/:exerciseId

/organizations