Discussion Topics API

API for accessing and participating in discussion topics in groups and courses.

A FileAttachment object looks like:

// A file attachment
{
  "content-type": "unknown/unknown",
  "url": "http://www.example.com/courses/1/files/1/download",
  "filename": "content.txt",
  "display_name": "content.txt"
}

A DiscussionTopic object looks like:

// A discussion topic
{
  // The ID of this topic.
  "id": 1,
  // The topic title.
  "title": "Topic 1",
  // The HTML content of the message body.
  "message": "<p>content here</p>",
  // The URL to the discussion topic in canvas.
  "html_url": "https://<canvas>/courses/1/discussion_topics/2",
  // The datetime the topic was posted. If it is null it hasn't been posted yet.
  // (see delayed_post_at)
  "posted_at": "2037-07-21T13:29:31Z",
  // The datetime for when the last reply was in the topic.
  "last_reply_at": "2037-07-28T19:38:31Z",
  // If true then a user may not respond to other replies until that user has made
  // an initial reply. Defaults to false.
  "require_initial_post": false,
  // Whether or not posts in this topic are visible to the user.
  "user_can_see_posts": true,
  // The count of entries in the topic.
  "discussion_subentry_count": 0,
  // The read_state of the topic for the current user, 'read' or 'unread'.
  "read_state": "read",
  // The count of unread entries of this topic for the current user.
  "unread_count": 0,
  // Whether or not the current user is subscribed to this topic.
  "subscribed": true,
  // (Optional) Why the user cannot subscribe to this topic. Only one reason will
  // be returned even if multiple apply. Can be one of: 'initial_post_required':
  // The user must post a reply first; 'not_in_group_set': The user is not in the
  // group set for this graded group discussion; 'not_in_group': The user is not
  // in this topic's group; 'topic_is_announcement': This topic is an announcement
  "subscription_hold": "not_in_group_set",
  // The unique identifier of the assignment if the topic is for grading,
  // otherwise null.
  "assignment_id": null,
  // The datetime to publish the topic (if not right away).
  "delayed_post_at": null,
  // Whether this discussion topic is published (true) or draft state (false)
  "published": true,
  // The datetime to lock the topic (if ever).
  "lock_at": null,
  // Whether or not the discussion is 'closed for comments'.
  "locked": false,
  // Whether or not the discussion has been 'pinned' by an instructor
  "pinned": false,
  // Whether or not this is locked for the user.
  "locked_for_user": true,
  // (Optional) Information for the user about the lock. Present when
  // locked_for_user is true.
  "lock_info": null,
  // (Optional) An explanation of why this is locked for the user. Present when
  // locked_for_user is true.
  "lock_explanation": "This discussion is locked until September 1 at 12:00am",
  // The username of the topic creator.
  "user_name": "User Name",
  // DEPRECATED An array of topic_ids for the group discussions the user is a part
  // of.
  "topic_children": [5, 7, 10],
  // An array of group discussions the user is a part of. Fields include: id,
  // group_id
  "group_topic_children": [{"id":5,"group_id":1}, {"id":7,"group_id":5}, {"id":10,"group_id":4}],
  // If the topic is for grading and a group assignment this will point to the
  // original topic in the course.
  "root_topic_id": null,
  // If the topic is a podcast topic this is the feed url for the current user.
  "podcast_url": "/feeds/topics/1/enrollment_1XAcepje4u228rt4mi7Z1oFbRpn3RAkTzuXIGOPe.rss",
  // The type of discussion. Values are 'side_comment' or 'not_threaded', for
  // discussions that only allow one level of nested comments, and 'threaded' for
  // fully threaded discussions.
  "discussion_type": "side_comment",
  // The unique identifier of the group category if the topic is a group
  // discussion, otherwise null.
  "group_category_id": null,
  // Array of file attachments.
  "attachments": null,
  // The current user's permissions on this topic.
  "permissions": {"attach":true},
  // Whether or not users can rate entries in this topic.
  "allow_rating": true,
  // Whether or not grade permissions are required to rate entries.
  "only_graders_can_rate": true,
  // Whether or not entries should be sorted by rating.
  "sort_by_rating": true
}

List discussion topics DiscussionTopicsController#index

GET /api/v1/courses/:course_id/discussion_topics

Scope: url:GET|/api/v1/courses/:course_id/discussion_topics

GET /api/v1/groups/:group_id/discussion_topics

Scope: url:GET|/api/v1/groups/:group_id/discussion_topics

Returns the paginated list of discussion topics for this course or group.

Request Parameters:

Parameter Type Description
include[] string

If “all_dates” is passed, all dates associated with graded discussions’ assignments will be included. if “sections” is passed, includes the course sections that are associated with the topic, if the topic is specific to certain sections of the course. If “sections_user_count” is passed, then:

(a) If sections were asked for *and* the topic is specific to certain
    course sections, includes the number of users in each
    section. (as part of the section json asked for above)
(b) Else, includes at the root level the total number of users in the
    topic's context (group or course) that the topic applies to.

If “overrides” is passed, the overrides for the assignment will be included

Allowed values: all_dates, sections, sections_user_count, overrides

order_by string

Determines the order of the discussion topic list. Defaults to “position”.

Allowed values: position, recent_activity, title

scope string

Only return discussion topics in the given state(s). Defaults to including all topics. Filtering is done after pagination, so pages may be smaller than requested if topics are filtered. Can pass multiple states as comma separated string.

Allowed values: locked, unlocked, pinned, unpinned

only_announcements boolean

Return announcements instead of discussion topics. Defaults to false
filter_by string

The state of the discussion topic to return. Currently only supports unread state.

Allowed values: all, unread

search_term string

The partial title of the discussion topics to match and return.
exclude_context_module_locked_topics boolean

For students, exclude topics that are locked by module progression. Defaults to false.

Example Request:

curl https://<canvas>/api/v1/courses/<course_id>/discussion_topics \
     -H 'Authorization: Bearer <token>'
Returns a list of DiscussionTopic objects

Create a new discussion topic DiscussionTopicsController#create

POST /api/v1/courses/:course_id/discussion_topics

Scope: url:POST|/api/v1/courses/:course_id/discussion_topics

POST /api/v1/groups/:group_id/discussion_topics

Scope: url:POST|/api/v1/groups/:group_id/discussion_topics

Create an new discussion topic for the course or group.

Request Parameters:

Parameter Type Description
title string

no description
message string

no description
discussion_type string

The type of discussion. Defaults to side_comment or not_threaded if not value is given. Accepted values are ‘side_comment’, ‘not_threaded’ for discussions that only allow one level of nested comments, and ‘threaded’ for fully threaded discussions.

Allowed values: side_comment, threaded, not_threaded

published boolean

Whether this topic is published (true) or draft state (false). Only teachers and TAs have the ability to create draft state topics.
delayed_post_at DateTime

If a timestamp is given, the topic will not be published until that time.
allow_rating boolean

Whether or not users can rate entries in this topic.
lock_at DateTime

If a timestamp is given, the topic will be scheduled to lock at the provided timestamp. If the timestamp is in the past, the topic will be locked.
podcast_enabled boolean

If true, the topic will have an associated podcast feed.
podcast_has_student_posts boolean

If true, the podcast will include posts from students as well. Implies podcast_enabled.
require_initial_post boolean

If true then a user may not respond to other replies until that user has made an initial reply. Defaults to false.
assignment Assignment

To create an assignment discussion, pass the assignment parameters as a sub-object. See the Create an Assignment API for the available parameters. The name parameter will be ignored, as it’s taken from the discussion title. If you want to make a discussion that was an assignment NOT an assignment, pass set_assignment = false as part of the assignment object
is_announcement boolean

If true, this topic is an announcement. It will appear in the announcement’s section rather than the discussions section. This requires announcment-posting permissions.
pinned boolean

If true, this topic will be listed in the “Pinned Discussion” section
position_after string

By default, discussions are sorted chronologically by creation date, you can pass the id of another topic to have this one show up after the other when they are listed.
group_category_id integer

If present, the topic will become a group discussion assigned to the group.
only_graders_can_rate boolean

If true, only graders will be allowed to rate entries.
sort_by_rating boolean

If true, entries will be sorted by rating.
attachment File

A multipart/form-data form-field-style attachment. Attachments larger than 1 kilobyte are subject to quota restrictions.
specific_sections string

A comma-separated list of sections ids to which the discussion topic should be made specific to. If it is not desired to make the discussion topic specific to sections, then this parameter may be omitted or set to “all”. Can only be present only on announcements and only those that are for a course (as opposed to a group).

Example Request:

curl https://<canvas>/api/v1/courses/<course_id>/discussion_topics \
    -F title='my topic' \
    -F message='initial message' \
    -F podcast_enabled=1 \
    -H 'Authorization: Bearer <token>'
    -F 'attachment=@<filename>' \

curl https://<canvas>/api/v1/courses/<course_id>/discussion_topics \
    -F title='my assignment topic' \
    -F message='initial message' \
    -F assignment[points_possible]=15 \
    -H 'Authorization: Bearer <token>'

Update a topic DiscussionTopicsController#update

PUT /api/v1/courses/:course_id/discussion_topics/:topic_id

Scope: url:PUT|/api/v1/courses/:course_id/discussion_topics/:topic_id

PUT /api/v1/groups/:group_id/discussion_topics/:topic_id

Scope: url:PUT|/api/v1/groups/:group_id/discussion_topics/:topic_id

Update an existing discussion topic for the course or group.

Request Parameters:

Parameter Type Description
title string

no description
message string

no description
discussion_type string

The type of discussion. Defaults to side_comment or not_threaded if not value is given. Accepted values are ‘side_comment’, ‘not_threaded’ for discussions that only allow one level of nested comments, and ‘threaded’ for fully threaded discussions.

Allowed values: side_comment, threaded, not_threaded

published boolean

Whether this topic is published (true) or draft state (false). Only teachers and TAs have the ability to create draft state topics.
delayed_post_at DateTime

If a timestamp is given, the topic will not be published until that time.
lock_at DateTime

If a timestamp is given, the topic will be scheduled to lock at the provided timestamp. If the timestamp is in the past, the topic will be locked.
podcast_enabled boolean

If true, the topic will have an associated podcast feed.
podcast_has_student_posts boolean

If true, the podcast will include posts from students as well. Implies podcast_enabled.
require_initial_post boolean

If true then a user may not respond to other replies until that user has made an initial reply. Defaults to false.
assignment Assignment

To create an assignment discussion, pass the assignment parameters as a sub-object. See the Create an Assignment API for the available parameters. The name parameter will be ignored, as it’s taken from the discussion title. If you want to make a discussion that was an assignment NOT an assignment, pass set_assignment = false as part of the assignment object
is_announcement boolean

If true, this topic is an announcement. It will appear in the announcement’s section rather than the discussions section. This requires announcment-posting permissions.
pinned boolean

If true, this topic will be listed in the “Pinned Discussion” section
position_after string

By default, discussions are sorted chronologically by creation date, you can pass the id of another topic to have this one show up after the other when they are listed.
group_category_id integer

If present, the topic will become a group discussion assigned to the group.
allow_rating boolean

If true, users will be allowed to rate entries.
only_graders_can_rate boolean

If true, only graders will be allowed to rate entries.
sort_by_rating boolean

If true, entries will be sorted by rating.
specific_sections string

A comma-separated list of sections ids to which the discussion topic should be made specific too. If it is not desired to make the discussion topic specific to sections, then this parameter may be omitted or set to “all”. Can only be present only on announcements and only those that are for a course (as opposed to a group).

Example Request:

curl https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id> \
    -F title='This will be positioned after Topic #1234' \
    -F position_after=1234 \
    -H 'Authorization: Bearer <token>'

Delete a topic DiscussionTopicsController#destroy

DELETE /api/v1/courses/:course_id/discussion_topics/:topic_id

Scope: url:DELETE|/api/v1/courses/:course_id/discussion_topics/:topic_id

DELETE /api/v1/groups/:group_id/discussion_topics/:topic_id

Scope: url:DELETE|/api/v1/groups/:group_id/discussion_topics/:topic_id

Deletes the discussion topic. This will also delete the assignment, if it’s an assignment discussion.

Example Request:

curl -X DELETE https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id> \
     -H 'Authorization: Bearer <token>'

Reorder pinned topics DiscussionTopicsController#reorder

POST /api/v1/courses/:course_id/discussion_topics/reorder

Scope: url:POST|/api/v1/courses/:course_id/discussion_topics/reorder

POST /api/v1/groups/:group_id/discussion_topics/reorder

Scope: url:POST|/api/v1/groups/:group_id/discussion_topics/reorder

Puts the pinned discussion topics in the specified order. All pinned topics should be included.

Request Parameters:

Parameter Type Description
order[] Required integer

The ids of the pinned discussion topics in the desired order. (For example, “order=104,102,103”.)

Update an entry DiscussionEntriesController#update

PUT /api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:id

Scope: url:PUT|/api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:id

PUT /api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:id

Scope: url:PUT|/api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:id

Update an existing discussion entry.

The entry must have been created by the current user, or the current user must have admin rights to the discussion. If the edit is not allowed, a 401 will be returned.

Request Parameters:

Parameter Type Description
message string

The updated body of the entry.

Example Request:

curl -X PUT 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/entries/<entry_id>' \
     -F 'message=<message>' \
     -H "Authorization: Bearer <token>"

Delete an entry DiscussionEntriesController#destroy

DELETE /api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:id

Scope: url:DELETE|/api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:id

DELETE /api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:id

Scope: url:DELETE|/api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:id

Delete a discussion entry.

The entry must have been created by the current user, or the current user must have admin rights to the discussion. If the delete is not allowed, a 401 will be returned.

The discussion will be marked deleted, and the user_id and message will be cleared out.

Example Request:

curl -X DELETE 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/entries/<entry_id>' \
     -H "Authorization: Bearer <token>"

Get a single topic DiscussionTopicsApiController#show

GET /api/v1/courses/:course_id/discussion_topics/:topic_id

Scope: url:GET|/api/v1/courses/:course_id/discussion_topics/:topic_id

GET /api/v1/groups/:group_id/discussion_topics/:topic_id

Scope: url:GET|/api/v1/groups/:group_id/discussion_topics/:topic_id

Returns data on an individual discussion topic. See the List action for the response formatting.

Request Parameters:

Parameter Type Description
include[] string

If “all_dates” is passed, all dates associated with graded discussions’ assignments will be included. if “sections” is passed, includes the course sections that are associated with the topic, if the topic is specific to certain sections of the course. If “sections_user_count” is passed, then:

(a) If sections were asked for *and* the topic is specific to certain
    course sections, includes the number of users in each
    section. (as part of the section json asked for above)
(b) Else, includes at the root level the total number of users in the
    topic's context (group or course) that the topic applies to.

If “overrides” is passed, the overrides for the assignment will be included

Allowed values: all_dates, sections, sections_user_count, overrides

Example Request:

curl https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id> \
    -H 'Authorization: Bearer <token>'

Summary DiscussionTopicsApiController#summary

GET /api/v1/courses/:course_id/discussion_topics/:topic_id/summaries

Scope: url:GET|/api/v1/courses/:course_id/discussion_topics/:topic_id/summaries

GET /api/v1/groups/:group_id/discussion_topics/:topic_id/summaries

Scope: url:GET|/api/v1/groups/:group_id/discussion_topics/:topic_id/summaries

Generates a summary for a discussion topic.

Request Parameters:

Parameter Type Description
userInput string

Areas or topics for the summary to focus on.

Example Request:

curl https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/summaries \
    -H 'Authorization: Bearer <token>'

Example Response:

{
  "id": 1,
  "text": "This is a summary of the discussion topic."
}

Disable summary DiscussionTopicsApiController#disable_summary

PUT /api/v1/courses/:course_id/discussion_topics/:topic_id/summaries/disable

Scope: url:PUT|/api/v1/courses/:course_id/discussion_topics/:topic_id/summaries/disable

PUT /api/v1/groups/:group_id/discussion_topics/:topic_id/summaries/disable

Scope: url:PUT|/api/v1/groups/:group_id/discussion_topics/:topic_id/summaries/disable

Disables the summary for a discussion topic.

Example Request:

curl -X PUT https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/disable_summary \

Example Response:

{
  "success": true
}

Summary Feedback DiscussionTopicsApiController#summary_feedback

POST /api/v1/courses/:course_id/discussion_topics/:topic_id/summaries/:summary_id/feedback

Scope: url:POST|/api/v1/courses/:course_id/discussion_topics/:topic_id/summaries/:summary_id/feedback

POST /api/v1/groups/:group_id/discussion_topics/:topic_id/summaries/:summary_id/feedback

Scope: url:POST|/api/v1/groups/:group_id/discussion_topics/:topic_id/summaries/:summary_id/feedback

Persists feedback on a discussion topic summary.

Request Parameters:

Parameter Type Description
_action string

Required The action to take on the summary. Possible values are:

  • “seen”: Marks the summary as seen. This action saves the feedback if it’s not already persisted.

  • “like”: Marks the summary as liked.

  • “dislike”: Marks the summary as disliked.

  • “reset_like”: Resets the like status of the summary.

  • “regenerate”: Regenerates the summary feedback.

  • “disable_summary”: Disables the summary feedback.

Any other value will result in an error response.

Example Request:

curl -X POST https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/summaries/<summary_id>/feedback \
     -F '_action=like' \
     -H "Authorization: Bearer

Example Response:

{
  "liked": true,
  "disliked": false
}

Get the full topic DiscussionTopicsApiController#view

GET /api/v1/courses/:course_id/discussion_topics/:topic_id/view

Scope: url:GET|/api/v1/courses/:course_id/discussion_topics/:topic_id/view

GET /api/v1/groups/:group_id/discussion_topics/:topic_id/view

Scope: url:GET|/api/v1/groups/:group_id/discussion_topics/:topic_id/view

Return a cached structure of the discussion topic, containing all entries, their authors, and their message bodies.

May require (depending on the topic) that the user has posted in the topic. If it is required, and the user has not posted, will respond with a 403 Forbidden status and the body ‘require_initial_post’.

In some rare situations, this cached structure may not be available yet. In that case, the server will respond with a 503 error, and the caller should try again soon.

The response is an object containing the following keys:

  • “participants”: A list of summary information on users who have posted to the discussion. Each value is an object containing their id, display_name, and avatar_url.

  • “unread_entries”: A list of entry ids that are unread by the current user. this implies that any entry not in this list is read.

  • “entry_ratings”: A map of entry ids to ratings by the current user. Entries not in this list have no rating. Only populated if rating is enabled.

  • “forced_entries”: A list of entry ids that have forced_read_state set to true. This flag is meant to indicate the entry’s read_state has been manually set to ‘unread’ by the user, so the entry should not be automatically marked as read.

  • “view”: A threaded view of all the entries in the discussion, containing the id, user_id, and message.

  • “new_entries”: Because this view is eventually consistent, it’s possible that newly created or updated entries won’t yet be reflected in the view. If the application wants to also get a flat list of all entries not yet reflected in the view, pass include_new_entries=1 to the request and this array of entries will be returned. These entries are returned in a flat array, in ascending created_at order.

Example Request:

curl 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/view' \
     -H "Authorization: Bearer <token>"

Example Response:

{
  "unread_entries": [1,3,4],
  "entry_ratings": {3: 1},
  "forced_entries": [1],
  "participants": [
    { "id": 10, "display_name": "user 1", "avatar_image_url": "https://...", "html_url": "https://..." },
    { "id": 11, "display_name": "user 2", "avatar_image_url": "https://...", "html_url": "https://..." }
  ],
  "view": [
    { "id": 1, "user_id": 10, "parent_id": null, "message": "...html text...", "replies": [
      { "id": 3, "user_id": 11, "parent_id": 1, "message": "...html....", "replies": [...] }
    ]},
    { "id": 2, "user_id": 11, "parent_id": null, "message": "...html..." },
    { "id": 4, "user_id": 10, "parent_id": null, "message": "...html..." }
  ]
}

Post an entry DiscussionTopicsApiController#add_entry

POST /api/v1/courses/:course_id/discussion_topics/:topic_id/entries

Scope: url:POST|/api/v1/courses/:course_id/discussion_topics/:topic_id/entries

POST /api/v1/groups/:group_id/discussion_topics/:topic_id/entries

Scope: url:POST|/api/v1/groups/:group_id/discussion_topics/:topic_id/entries

Create a new entry in a discussion topic. Returns a json representation of the created entry (see documentation for ‘entries’ method) on success.

Request Parameters:

Parameter Type Description
message string

The body of the entry.
attachment string

a multipart/form-data form-field-style attachment. Attachments larger than 1 kilobyte are subject to quota restrictions.

Example Request:

curl 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/entries.json' \
     -F 'message=<message>' \
     -F 'attachment=@<filename>' \
     -H "Authorization: Bearer <token>"

Duplicate discussion topic DiscussionTopicsApiController#duplicate

POST /api/v1/courses/:course_id/discussion_topics/:topic_id/duplicate

Scope: url:POST|/api/v1/courses/:course_id/discussion_topics/:topic_id/duplicate

POST /api/v1/groups/:group_id/discussion_topics/:topic_id/duplicate

Scope: url:POST|/api/v1/groups/:group_id/discussion_topics/:topic_id/duplicate

Duplicate a discussion topic according to context (Course/Group)

Example Request:

curl -X POST -H 'Authorization: Bearer <token>' \
https://<canvas>/api/v1/courses/123/discussion_topics/123/duplicate

curl -X POST -H 'Authorization: Bearer <token>' \
https://<canvas>/api/v1/group/456/discussion_topics/456/duplicate
Returns a DiscussionTopic object

List topic entries DiscussionTopicsApiController#entries

GET /api/v1/courses/:course_id/discussion_topics/:topic_id/entries

Scope: url:GET|/api/v1/courses/:course_id/discussion_topics/:topic_id/entries

GET /api/v1/groups/:group_id/discussion_topics/:topic_id/entries

Scope: url:GET|/api/v1/groups/:group_id/discussion_topics/:topic_id/entries

Retrieve the (paginated) top-level entries in a discussion topic.

May require (depending on the topic) that the user has posted in the topic. If it is required, and the user has not posted, will respond with a 403 Forbidden status and the body ‘require_initial_post’.

Will include the 10 most recent replies, if any, for each entry returned.

If the topic is a root topic with children corresponding to groups of a group assignment, entries from those subtopics for which the user belongs to the corresponding group will be returned.

Ordering of returned entries is newest-first by posting timestamp (reply activity is ignored).

API response field:

  • id

    The unique identifier for the entry.

  • user_id

    The unique identifier for the author of the entry.

  • editor_id

    The unique user id of the person to last edit the entry, if different than user_id.

  • user_name

    The name of the author of the entry.

  • message

    The content of the entry.

  • read_state

    The read state of the entry, “read” or “unread”.

  • forced_read_state

    Whether the read_state was forced (was set manually)

  • created_at

    The creation time of the entry, in ISO8601 format.

  • updated_at

    The updated time of the entry, in ISO8601 format.

  • attachment

    JSON representation of the attachment for the entry, if any. Present only if there is an attachment.

  • attachments

    Deprecated. Same as attachment, but returned as a one-element array. Present only if there is an attachment.

  • recent_replies

    The 10 most recent replies for the entry, newest first. Present only if there is at least one reply.

  • has_more_replies

    True if there are more than 10 replies for the entry (i.e., not all were included in this response). Present only if there is at least one reply.

Example Response:

[ {
    "id": 1019,
    "user_id": 7086,
    "user_name": "nobody@example.com",
    "message": "Newer entry",
    "read_state": "read",
    "forced_read_state": false,
    "created_at": "2011-11-03T21:33:29Z",
    "attachment": {
      "content-type": "unknown/unknown",
      "url": "http://www.example.com/files/681/download?verifier=JDG10Ruitv8o6LjGXWlxgOb5Sl3ElzVYm9cBKUT3",
      "filename": "content.txt",
      "display_name": "content.txt" } },
  {
    "id": 1016,
    "user_id": 7086,
    "user_name": "nobody@example.com",
    "message": "first top-level entry",
    "read_state": "unread",
    "forced_read_state": false,
    "created_at": "2011-11-03T21:32:29Z",
    "recent_replies": [
      {
        "id": 1017,
        "user_id": 7086,
        "user_name": "nobody@example.com",
        "message": "Reply message",
        "created_at": "2011-11-03T21:32:29Z"
      } ],
    "has_more_replies": false } ]

Post a reply DiscussionTopicsApiController#add_reply

POST /api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:entry_id/replies

Scope: url:POST|/api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:entry_id/replies

POST /api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:entry_id/replies

Scope: url:POST|/api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:entry_id/replies

Add a reply to an entry in a discussion topic. Returns a json representation of the created reply (see documentation for ‘replies’ method) on success.

May require (depending on the topic) that the user has posted in the topic. If it is required, and the user has not posted, will respond with a 403 Forbidden status and the body ‘require_initial_post’.

Request Parameters:

Parameter Type Description
message string

The body of the entry.
attachment string

a multipart/form-data form-field-style attachment. Attachments larger than 1 kilobyte are subject to quota restrictions.

Example Request:

curl 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/entries/<entry_id>/replies.json' \
     -F 'message=<message>' \
     -F 'attachment=@<filename>' \
     -H "Authorization: Bearer <token>"

List entry replies DiscussionTopicsApiController#replies

GET /api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:entry_id/replies

Scope: url:GET|/api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:entry_id/replies

GET /api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:entry_id/replies

Scope: url:GET|/api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:entry_id/replies

Retrieve the (paginated) replies to a top-level entry in a discussion topic.

May require (depending on the topic) that the user has posted in the topic. If it is required, and the user has not posted, will respond with a 403 Forbidden status and the body ‘require_initial_post’.

Ordering of returned entries is newest-first by creation timestamp.

API response field:

  • id

    The unique identifier for the reply.

  • user_id

    The unique identifier for the author of the reply.

  • editor_id

    The unique user id of the person to last edit the entry, if different than user_id.

  • user_name

    The name of the author of the reply.

  • message

    The content of the reply.

  • read_state

    The read state of the entry, “read” or “unread”.

  • forced_read_state

    Whether the read_state was forced (was set manually)

  • created_at

    The creation time of the reply, in ISO8601 format.

Example Response:

[ {
    "id": 1015,
    "user_id": 7084,
    "user_name": "nobody@example.com",
    "message": "Newer message",
    "read_state": "read",
    "forced_read_state": false,
    "created_at": "2011-11-03T21:27:44Z" },
  {
    "id": 1014,
    "user_id": 7084,
    "user_name": "nobody@example.com",
    "message": "Older message",
    "read_state": "unread",
    "forced_read_state": false,
    "created_at": "2011-11-03T21:26:44Z" } ]

List entries DiscussionTopicsApiController#entry_list

GET /api/v1/courses/:course_id/discussion_topics/:topic_id/entry_list

Scope: url:GET|/api/v1/courses/:course_id/discussion_topics/:topic_id/entry_list

GET /api/v1/groups/:group_id/discussion_topics/:topic_id/entry_list

Scope: url:GET|/api/v1/groups/:group_id/discussion_topics/:topic_id/entry_list

Retrieve a paginated list of discussion entries, given a list of ids.

May require (depending on the topic) that the user has posted in the topic. If it is required, and the user has not posted, will respond with a 403 Forbidden status and the body ‘require_initial_post’.

Request Parameters:

Parameter Type Description
ids[] string

A list of entry ids to retrieve. Entries will be returned in id order, smallest id first.

API response field:

  • id

    The unique identifier for the reply.

  • user_id

    The unique identifier for the author of the reply.

  • user_name

    The name of the author of the reply.

  • message

    The content of the reply.

  • read_state

    The read state of the entry, “read” or “unread”.

  • forced_read_state

    Whether the read_state was forced (was set manually)

  • created_at

    The creation time of the reply, in ISO8601 format.

  • deleted

    If the entry has been deleted, returns true. The user_id, user_name, and message will not be returned for deleted entries.

Example Request:

curl 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/entry_list?ids[]=1&ids[]=2&ids[]=3' \
     -H "Authorization: Bearer <token>"

Example Response:

[
  { ... entry 1 ... },
  { ... entry 2 ... },
  { ... entry 3 ... },
]

Mark topic as read DiscussionTopicsApiController#mark_topic_read

PUT /api/v1/courses/:course_id/discussion_topics/:topic_id/read

Scope: url:PUT|/api/v1/courses/:course_id/discussion_topics/:topic_id/read

PUT /api/v1/groups/:group_id/discussion_topics/:topic_id/read

Scope: url:PUT|/api/v1/groups/:group_id/discussion_topics/:topic_id/read

Mark the initial text of the discussion topic as read.

No request fields are necessary.

On success, the response will be 204 No Content with an empty body.

Example Request:

curl 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/read.json' \
     -X PUT \
     -H "Authorization: Bearer <token>" \
     -H "Content-Length: 0"

Mark all topic as read DiscussionTopicsApiController#mark_all_topic_read

PUT /api/v1/courses/:course_id/discussion_topics/read_all

Scope: url:PUT|/api/v1/courses/:course_id/discussion_topics/read_all

PUT /api/v1/groups/:group_id/discussion_topics/read_all

Scope: url:PUT|/api/v1/groups/:group_id/discussion_topics/read_all

Mark the initial text of all the discussion topics as read in the context.

No request fields are necessary.

On success, the response will be 204 No Content with an empty body.

Example Request:

curl 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/read_all' \
     -X POST \
     -H "Authorization: Bearer <token>" \
     -H "Content-Length: 0"

Mark topic as unread DiscussionTopicsApiController#mark_topic_unread

DELETE /api/v1/courses/:course_id/discussion_topics/:topic_id/read

Scope: url:DELETE|/api/v1/courses/:course_id/discussion_topics/:topic_id/read

DELETE /api/v1/groups/:group_id/discussion_topics/:topic_id/read

Scope: url:DELETE|/api/v1/groups/:group_id/discussion_topics/:topic_id/read

Mark the initial text of the discussion topic as unread.

No request fields are necessary.

On success, the response will be 204 No Content with an empty body.

Example Request:

curl 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/read.json' \
     -X DELETE \
     -H "Authorization: Bearer <token>"

Mark all entries as read DiscussionTopicsApiController#mark_all_read

PUT /api/v1/courses/:course_id/discussion_topics/:topic_id/read_all

Scope: url:PUT|/api/v1/courses/:course_id/discussion_topics/:topic_id/read_all

PUT /api/v1/groups/:group_id/discussion_topics/:topic_id/read_all

Scope: url:PUT|/api/v1/groups/:group_id/discussion_topics/:topic_id/read_all

Mark the discussion topic and all its entries as read.

No request fields are necessary.

On success, the response will be 204 No Content with an empty body.

Request Parameters:

Parameter Type Description
forced_read_state boolean

A boolean value to set all of the entries’ forced_read_state. No change is made if this argument is not specified.

Example Request:

curl 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/read_all.json' \
     -X PUT \
     -H "Authorization: Bearer <token>" \
     -H "Content-Length: 0"

Mark all entries as unread DiscussionTopicsApiController#mark_all_unread

DELETE /api/v1/courses/:course_id/discussion_topics/:topic_id/read_all

Scope: url:DELETE|/api/v1/courses/:course_id/discussion_topics/:topic_id/read_all

DELETE /api/v1/groups/:group_id/discussion_topics/:topic_id/read_all

Scope: url:DELETE|/api/v1/groups/:group_id/discussion_topics/:topic_id/read_all

Mark the discussion topic and all its entries as unread.

No request fields are necessary.

On success, the response will be 204 No Content with an empty body.

Request Parameters:

Parameter Type Description
forced_read_state boolean

A boolean value to set all of the entries’ forced_read_state. No change is made if this argument is not specified.

Example Request:

curl 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/read_all.json' \
     -X DELETE \
     -H "Authorization: Bearer <token>"

Mark entry as read DiscussionTopicsApiController#mark_entry_read

PUT /api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:entry_id/read

Scope: url:PUT|/api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:entry_id/read

PUT /api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:entry_id/read

Scope: url:PUT|/api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:entry_id/read

Mark a discussion entry as read.

No request fields are necessary.

On success, the response will be 204 No Content with an empty body.

Request Parameters:

Parameter Type Description
forced_read_state boolean

A boolean value to set the entry’s forced_read_state. No change is made if this argument is not specified.

Example Request:

curl 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/entries/<entry_id>/read.json' \
     -X PUT \
     -H "Authorization: Bearer <token>"\
     -H "Content-Length: 0"

Mark entry as unread DiscussionTopicsApiController#mark_entry_unread

DELETE /api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:entry_id/read

Scope: url:DELETE|/api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:entry_id/read

DELETE /api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:entry_id/read

Scope: url:DELETE|/api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:entry_id/read

Mark a discussion entry as unread.

No request fields are necessary.

On success, the response will be 204 No Content with an empty body.

Request Parameters:

Parameter Type Description
forced_read_state boolean

A boolean value to set the entry’s forced_read_state. No change is made if this argument is not specified.

Example Request:

curl 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/entries/<entry_id>/read.json' \
     -X DELETE \
     -H "Authorization: Bearer <token>"

Rate entry DiscussionTopicsApiController#rate_entry

POST /api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:entry_id/rating

Scope: url:POST|/api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:entry_id/rating

POST /api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:entry_id/rating

Scope: url:POST|/api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:entry_id/rating

Rate a discussion entry.

On success, the response will be 204 No Content with an empty body.

Request Parameters:

Parameter Type Description
rating integer

A rating to set on this entry. Only 0 and 1 are accepted.

Example Request:

curl 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/entries/<entry_id>/rating.json' \
     -X POST \
     -H "Authorization: Bearer <token>"

Subscribe to a topic DiscussionTopicsApiController#subscribe_topic

PUT /api/v1/courses/:course_id/discussion_topics/:topic_id/subscribed

Scope: url:PUT|/api/v1/courses/:course_id/discussion_topics/:topic_id/subscribed

PUT /api/v1/groups/:group_id/discussion_topics/:topic_id/subscribed

Scope: url:PUT|/api/v1/groups/:group_id/discussion_topics/:topic_id/subscribed

Subscribe to a topic to receive notifications about new entries

On success, the response will be 204 No Content with an empty body

Example Request:

curl 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/subscribed.json' \
     -X PUT \
     -H "Authorization: Bearer <token>" \
     -H "Content-Length: 0"

Unsubscribe from a topic DiscussionTopicsApiController#unsubscribe_topic

DELETE /api/v1/courses/:course_id/discussion_topics/:topic_id/subscribed

Scope: url:DELETE|/api/v1/courses/:course_id/discussion_topics/:topic_id/subscribed

DELETE /api/v1/groups/:group_id/discussion_topics/:topic_id/subscribed

Scope: url:DELETE|/api/v1/groups/:group_id/discussion_topics/:topic_id/subscribed

Unsubscribe from a topic to stop receiving notifications about new entries

On success, the response will be 204 No Content with an empty body

Example Request:

curl 'https://<canvas>/api/v1/courses/<course_id>/discussion_topics/<topic_id>/subscribed.json' \
     -X DELETE \
     -H "Authorization: Bearer <token>"