Canvas LMS Grade an Assignment From a Module

arazzo: 1.0.1
info:
  title: Canvas LMS Grade an Assignment From a Module
  summary: List a course's modules with items, then grade a student on a module assignment.
  description: >-
    A module-driven grading flow for Canvas. Because the covered REST surface
    exposes module listing but not module-item authoring, this workflow adapts
    the "create module then add item" theme to a supported read-then-grade
    pattern: it lists the course modules including their items, then reads and
    grades a student's submission for the assignment id supplied for one of those
    module items. Every step spells out its request inline so the flow can be read
    and executed without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: canvasApi
  url: ../openapi/canvas-lms-rest-api-openapi.yml
  type: openapi
workflows:
- workflowId: grade-module-assignment
  summary: List modules then grade a student on a module's assignment.
  description: >-
    Lists the course modules with items for context, reads the student's
    submission for the supplied module assignment, and posts a grade.
  inputs:
    type: object
    required:
    - courseId
    - assignmentId
    - userId
    - postedGrade
    properties:
      courseId:
        type: string
        description: The Canvas course id.
      assignmentId:
        type: string
        description: The Canvas assignment id linked from a module item.
      userId:
        type: string
        description: The Canvas user id of the student to grade.
      postedGrade:
        type: string
        description: The grade to post.
  steps:
  - stepId: listModules
    description: >-
      List the course modules including their items to provide module context
      for the assignment being graded.
    operationId: listModules
    parameters:
    - name: course_id
      in: path
      value: $inputs.courseId
    - name: include[]
      in: query
      value:
      - items
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      firstModuleId: $response.body#/0/id
      firstModuleName: $response.body#/0/name
  - stepId: getSubmission
    description: >-
      Read the student's submission for the module's assignment.
    operationId: getSubmission
    parameters:
    - name: course_id
      in: path
      value: $inputs.courseId
    - name: assignment_id
      in: path
      value: $inputs.assignmentId
    - name: user_id
      in: path
      value: $inputs.userId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      submissionUserId: $response.body#/user_id
  - stepId: gradeSubmission
    description: >-
      Post the grade to the student's submission for the module assignment.
    operationId: gradeSubmission
    parameters:
    - name: course_id
      in: path
      value: $inputs.courseId
    - name: assignment_id
      in: path
      value: $inputs.assignmentId
    - name: user_id
      in: path
      value: $inputs.userId
    requestBody:
      contentType: application/json
      payload:
        submission:
          posted_grade: $inputs.postedGrade
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      grade: $response.body#/grade
      score: $response.body#/score
  outputs:
    moduleId: $steps.listModules.outputs.firstModuleId
    grade: $steps.gradeSubmission.outputs.grade