Discussions API

Discussions are a set of related notes on:

  • Snippets
  • Issues
  • Epics
  • Merge requests
  • Commits

This includes comments and threads and system notes. System notes are notes about changes to the object (for example, when a milestone changes). Label notes are not part of this API, but recorded as separate events in resource label events.

Discussions pagination

By default, GET requests return 20 results at a time because the API results are paginated.

Read more on pagination.

Issues

List project issue discussion items

Gets a list of all discussion items for a single issue.

GET /projects/:id/issues/:issue_iid/discussions
AttributeTypeRequiredDescription
idinteger/stringyesThe ID or URL-encoded path of the project.
issue_iidintegeryesThe IID of an issue.
[
  {
    "id": "6a9c1750b37d513a43987b574953fceb50b03ce7",
    "individual_note": false,
    "notes": [
      {
        "id": 1126,
        "type": "DiscussionNote",
        "body": "discussion text",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-03T21:54:39.668Z",
        "updated_at": "2018-03-03T21:54:39.668Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Issue",
        "project_id": 5,
        "noteable_iid": null
      },
      {
        "id": 1129,
        "type": "DiscussionNote",
        "body": "reply to the discussion",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-04T13:38:02.127Z",
        "updated_at": "2018-03-04T13:38:02.127Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Issue",
        "project_id": 5,
        "noteable_iid": null,
        "resolvable": false
      }
    ]
  },
  {
    "id": "87805b7c09016a7058e91bdbe7b29d1f284a39e6",
    "individual_note": true,
    "notes": [
      {
        "id": 1128,
        "type": null,
        "body": "a single comment",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-04T09:17:22.520Z",
        "updated_at": "2018-03-04T09:17:22.520Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Issue",
        "project_id": 5,
        "noteable_iid": null,
        "resolvable": false
      }
    ]
  }
]
curl --header "PRIVATE-TOKEN: <your_access_token>"\
  "https://gitlab.example.com/api/v4/projects/5/issues/11/discussions"

Get single issue discussion item

Returns a single discussion item for a specific project issue.

GET /projects/:id/issues/:issue_iid/discussions/:discussion_id

Parameters:

AttributeTypeRequiredDescription
idinteger or stringyesThe ID or URL-encoded path of the project.
issue_iidintegeryesThe IID of an issue.
discussion_idintegeryesThe ID of a discussion item.
curl --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/issues/11/discussions/<discussion_id>"

Create new issue thread

Creates a new thread to a single project issue. Similar to creating a note, but other comments (replies) can be added to it later.

POST /projects/:id/issues/:issue_iid/discussions

Parameters:

AttributeTypeRequiredDescription
bodystringyesThe content of the thread.
idinteger or stringyesThe ID or URL-encoded path of the project.
issue_iidintegeryesThe IID of an issue.
created_atstringnoDate time string, ISO 8601 formatted, such as 2016-03-11T03:45:40Z. Requires administrator or project/group owner rights.
curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/issues/11/discussions?body=comment"

Add note to existing issue thread

Adds a new note to the thread. This can also create a thread from a single comment.

caution
Notes can be added to other items than comments, such as system notes, making them threads.
POST /projects/:id/issues/:issue_iid/discussions/:discussion_id/notes

Parameters:

AttributeTypeRequiredDescription
bodystringyesThe content of the note or reply.
discussion_idintegeryesThe ID of a thread.
idinteger or stringyesThe ID or URL-encoded path of the project.
issue_iidintegeryesThe IID of an issue.
note_idintegeryesThe ID of a thread note.
created_atstringnoDate time string, ISO 8601 formatted, such as 2016-03-11T03:45:40Z. Requires administrator or project/group owner rights.
curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/issues/11/discussions/<discussion_id>/notes?body=comment"

Modify existing issue thread note

Modify existing thread note of an issue.

PUT /projects/:id/issues/:issue_iid/discussions/:discussion_id/notes/:note_id

Parameters:

AttributeTypeRequiredDescription
bodystringyesThe content of the note or reply.
discussion_idintegeryesThe ID of a thread.
idinteger or stringyesThe ID or URL-encoded path of the project.
issue_iidintegeryesThe IID of an issue.
note_idintegeryesThe ID of a thread note.
curl --request PUT --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/issues/11/discussions/<discussion_id>/notes/1108?body=comment"

Delete an issue thread note

Deletes an existing thread note of an issue.

DELETE /projects/:id/issues/:issue_iid/discussions/:discussion_id/notes/:note_id

Parameters:

AttributeTypeRequiredDescription
discussion_idintegeryesThe ID of a discussion.
idinteger or stringyesThe ID or URL-encoded path of the project.
issue_iidintegeryesThe IID of an issue.
note_idintegeryesThe ID of a discussion note.
curl --request DELETE --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/issues/11/discussions/636"

Snippets

List project snippet discussion items

Gets a list of all discussion items for a single snippet.

GET /projects/:id/snippets/:snippet_id/discussions
AttributeTypeRequiredDescription
idinteger/stringyesThe ID or URL-encoded path of the project.
snippet_idintegeryesThe ID of an snippet.
[
  {
    "id": "6a9c1750b37d513a43987b574953fceb50b03ce7",
    "individual_note": false,
    "notes": [
      {
        "id": 1126,
        "type": "DiscussionNote",
        "body": "discussion text",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-03T21:54:39.668Z",
        "updated_at": "2018-03-03T21:54:39.668Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Snippet",
        "project_id": 5,
        "noteable_iid": null
      },
      {
        "id": 1129,
        "type": "DiscussionNote",
        "body": "reply to the discussion",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-04T13:38:02.127Z",
        "updated_at": "2018-03-04T13:38:02.127Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Snippet",
        "project_id": 5,
        "noteable_iid": null,
        "resolvable": false
      }
    ]
  },
  {
    "id": "87805b7c09016a7058e91bdbe7b29d1f284a39e6",
    "individual_note": true,
    "notes": [
      {
        "id": 1128,
        "type": null,
        "body": "a single comment",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-04T09:17:22.520Z",
        "updated_at": "2018-03-04T09:17:22.520Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Snippet",
        "project_id": 5,
        "noteable_iid": null,
        "resolvable": false
      }
    ]
  }
]
curl --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/snippets/11/discussions"

Get single snippet discussion item

Returns a single discussion item for a specific project snippet.

GET /projects/:id/snippets/:snippet_id/discussions/:discussion_id

Parameters:

AttributeTypeRequiredDescription
discussion_idintegeryesThe ID of a discussion item.
idinteger or stringyesThe ID or URL-encoded path of the project.
snippet_idintegeryesThe ID of an snippet.
curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/snippets/11/discussions/<discussion_id>"

Create new snippet thread

Creates a new thread to a single project snippet. Similar to creating a note, but other comments (replies) can be added to it later.

POST /projects/:id/snippets/:snippet_id/discussions

Parameters:

AttributeTypeRequiredDescription
bodystringyesThe content of a discussion.
idinteger or stringyesThe ID or URL-encoded path of the project.
snippet_idintegeryesThe ID of an snippet.
created_atstringnoDate time string, ISO 8601 formatted, such as 2016-03-11T03:45:40Z. Requires administrator or project/group owner rights.
curl --request POST --header "PRIVATE-TOKEN: <your_access_token>"\
  "https://gitlab.example.com/api/v4/projects/5/snippets/11/discussions?body=comment"

Add note to existing snippet thread

Adds a new note to the thread.

POST /projects/:id/snippets/:snippet_id/discussions/:discussion_id/notes

Parameters:

AttributeTypeRequiredDescription
bodystringyesThe content of the note or reply.
discussion_idintegeryesThe ID of a thread.
idinteger or stringyesThe ID or URL-encoded path of the project.
note_idintegeryesThe ID of a thread note.
snippet_idintegeryesThe ID of an snippet.
created_atstringnoDate time string, ISO 8601 formatted, such as 2016-03-11T03:45:40Z. Requires administrator or project/group owner rights.
curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/snippets/11/discussions/<discussion_id>/notes?body=comment"

Modify existing snippet thread note

Modify existing thread note of a snippet.

PUT /projects/:id/snippets/:snippet_id/discussions/:discussion_id/notes/:note_id

Parameters:

AttributeTypeRequiredDescription
bodystringyesThe content of the note or reply.
discussion_idintegeryesThe ID of a thread.
idinteger or stringyesThe ID or URL-encoded path of the project.
note_idintegeryesThe ID of a thread note.
snippet_idintegeryesThe ID of an snippet.
curl --request PUT --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/snippets/11/discussions/<discussion_id>/notes/1108?body=comment"

Delete a snippet thread note

Deletes an existing thread note of a snippet.

DELETE /projects/:id/snippets/:snippet_id/discussions/:discussion_id/notes/:note_id

Parameters:

AttributeTypeRequiredDescription
discussion_idintegeryesThe ID of a discussion.
idinteger or stringyesThe ID or URL-encoded path of the project.
note_idintegeryesThe ID of a discussion note.
snippet_idintegeryesThe ID of an snippet.
curl --request DELETE --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/snippets/11/discussions/636"

Epics

List group epic discussion items

Gets a list of all discussion items for a single epic.

GET /groups/:id/epics/:epic_id/discussions
AttributeTypeRequiredDescription
epic_idintegeryesThe ID of an epic.
idinteger or stringyesThe ID or URL-encoded path of the group.
[
  {
    "id": "6a9c1750b37d513a43987b574953fceb50b03ce7",
    "individual_note": false,
    "notes": [
      {
        "id": 1126,
        "type": "DiscussionNote",
        "body": "discussion text",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-03T21:54:39.668Z",
        "updated_at": "2018-03-03T21:54:39.668Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Epic",
        "project_id": 5,
        "noteable_iid": null,
        "resolvable": false
      },
      {
        "id": 1129,
        "type": "DiscussionNote",
        "body": "reply to the discussion",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-04T13:38:02.127Z",
        "updated_at": "2018-03-04T13:38:02.127Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Epic",
        "project_id": 5,
        "noteable_iid": null,
        "resolvable": false
      }
    ]
  },
  {
    "id": "87805b7c09016a7058e91bdbe7b29d1f284a39e6",
    "individual_note": true,
    "notes": [
      {
        "id": 1128,
        "type": null,
        "body": "a single comment",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-04T09:17:22.520Z",
        "updated_at": "2018-03-04T09:17:22.520Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Epic",
        "project_id": 5,
        "noteable_iid": null,
        "resolvable": false
      }
    ]
  }
]
curl --header "PRIVATE-TOKEN: <your_access_token>"\
  "https://gitlab.example.com/api/v4/groups/5/epics/11/discussions"

Get single epic discussion item

Returns a single discussion item for a specific group epic.

GET /groups/:id/epics/:epic_id/discussions/:discussion_id

Parameters:

AttributeTypeRequiredDescription
discussion_idintegeryesThe ID of a discussion item.
epic_idintegeryesThe ID of an epic.
idinteger or stringyesThe ID or URL-encoded path of the group.
curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/groups/5/epics/11/discussions/<discussion_id>"

Create new epic thread

Creates a new thread to a single group epic. Similar to creating a note, but other comments (replies) can be added to it later.

POST /groups/:id/epics/:epic_id/discussions

Parameters:

AttributeTypeRequiredDescription
bodystringyesThe content of the thread.
epic_idintegeryesThe ID of an epic.
idinteger or stringyesThe ID or URL-encoded path of the group.
created_atstringnoDate time string, ISO 8601 formatted, such as 2016-03-11T03:45:40Z. Requires administrator or project/group owner rights.
curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/groups/5/epics/11/discussions?body=comment"

Add note to existing epic thread

Adds a new note to the thread. This can also create a thread from a single comment.

POST /groups/:id/epics/:epic_id/discussions/:discussion_id/notes

Parameters:

AttributeTypeRequiredDescription
bodystringyesThe content of the note or reply.
discussion_idintegeryesThe ID of a thread.
epic_idintegeryesThe ID of an epic.
idinteger or stringyesThe ID or URL-encoded path of the group.
note_idintegeryesThe ID of a thread note.
created_atstringnoDate time string, ISO 8601 formatted, such as 2016-03-11T03:45:40Z. Requires administrator or project/group owner rights.
curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/groups/5/epics/11/discussions/<discussion_id>/notes?body=comment"

Modify existing epic thread note

Modify existing thread note of an epic.

PUT /groups/:id/epics/:epic_id/discussions/:discussion_id/notes/:note_id

Parameters:

AttributeTypeRequiredDescription
bodystringyesThe content of note or reply.
discussion_idintegeryesThe ID of a thread.
epic_idintegeryesThe ID of an epic.
idinteger/stringyesThe ID or URL-encoded path of the group.
note_idintegeryesThe ID of a thread note.
curl --request PUT --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/groups/5/epics/11/discussions/<discussion_id>/notes/1108?body=comment"

Delete an epic thread note

Deletes an existing thread note of an epic.

DELETE /groups/:id/epics/:epic_id/discussions/:discussion_id/notes/:note_id

Parameters:

AttributeTypeRequiredDescription
discussion_idintegeryesThe ID of a thread.
epic_idintegeryesThe ID of an epic.
idinteger or stringyesThe ID or URL-encoded path of the group.
note_idintegeryesThe ID of a thread note.
curl --request DELETE --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/groups/5/epics/11/discussions/636"

Merge requests

List project merge request discussion items

Gets a list of all discussion items for a single merge request.

GET /projects/:id/merge_requests/:merge_request_iid/discussions
AttributeTypeRequiredDescription
idinteger or stringyesThe ID or URL-encoded path of the project.
merge_request_iidintegeryesThe IID of a merge request.
[
  {
    "id": "6a9c1750b37d513a43987b574953fceb50b03ce7",
    "individual_note": false,
    "notes": [
      {
        "id": 1126,
        "type": "DiscussionNote",
        "body": "discussion text",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-03T21:54:39.668Z",
        "updated_at": "2018-03-03T21:54:39.668Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Merge request",
        "project_id": 5,
        "noteable_iid": null,
        "resolved": false,
        "resolvable": true,
        "resolved_by": null,
        "resolved_at": null
      },
      {
        "id": 1129,
        "type": "DiscussionNote",
        "body": "reply to the discussion",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-04T13:38:02.127Z",
        "updated_at": "2018-03-04T13:38:02.127Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Merge request",
        "project_id": 5,
        "noteable_iid": null,
        "resolved": false,
        "resolvable": true,
        "resolved_by": null
      }
    ]
  },
  {
    "id": "87805b7c09016a7058e91bdbe7b29d1f284a39e6",
    "individual_note": true,
    "notes": [
      {
        "id": 1128,
        "type": null,
        "body": "a single comment",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-04T09:17:22.520Z",
        "updated_at": "2018-03-04T09:17:22.520Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Merge request",
        "project_id": 5,
        "noteable_iid": null,
        "resolved": false,
        "resolvable": true,
        "resolved_by": null
      }
    ]
  }
]

Diff comments also contain position:

[
  {
    "id": "87805b7c09016a7058e91bdbe7b29d1f284a39e6",
    "individual_note": false,
    "notes": [
      {
        "id": 1128,
        "type": "DiffNote",
        "body": "diff comment",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-04T09:17:22.520Z",
        "updated_at": "2018-03-04T09:17:22.520Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Merge request",
        "project_id": 5,
        "noteable_iid": null,
        "commit_id": "4803c71e6b1833ca72b8b26ef2ecd5adc8a38031",
        "position": {
          "base_sha": "b5d6e7b1613fca24d250fa8e5bc7bcc3dd6002ef",
          "start_sha": "7c9c2ead8a320fb7ba0b4e234bd9529a2614e306",
          "head_sha": "4803c71e6b1833ca72b8b26ef2ecd5adc8a38031",
          "old_path": "package.json",
          "new_path": "package.json",
          "position_type": "text",
          "old_line": 27,
          "new_line": 27,
          "line_range": {
            "start": {
              "line_code": "588440f66559714280628a4f9799f0c4eb880a4a_10_10",
              "type": "new"
            },
            "end": {
              "line_code": "588440f66559714280628a4f9799f0c4eb880a4a_11_11",
              "type": "old"
            }
          }
        },
        "resolved": false,
        "resolvable": true,
        "resolved_by": null
      }
    ]
  }
]
curl --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/merge_requests/11/discussions"

Get single merge request discussion item

Returns a single discussion item for a specific project merge request.

GET /projects/:id/merge_requests/:merge_request_iid/discussions/:discussion_id

Parameters:

AttributeTypeRequiredDescription
discussion_idstringyesThe ID of a discussion item.
idinteger or stringyesThe ID or URL-encoded path of the project.
merge_request_iidintegeryesThe IID of a merge request.
curl --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/merge_requests/11/discussions/<discussion_id>"

Create new merge request thread

The commit id entry was introduced in GitLab 13.7.

Creates a new thread to a single project merge request. Similar to creating a note but other comments (replies) can be added to it later. For other approaches, see Post comment to commit in the Commits API, and Create new merge request note in the Notes API.

POST /projects/:id/merge_requests/:merge_request_iid/discussions

Parameters for all comments:

AttributeTypeRequiredDescription
bodystringyesThe content of the thread.
idinteger/stringyesThe ID or URL-encoded path of the project.
merge_request_iidintegeryesThe IID of a merge request.
position[base_sha]stringyesBase commit SHA in the source branch.
position[head_sha]stringyesSHA referencing HEAD of this merge request.
position[start_sha]stringyesSHA referencing commit in target branch.
position[new_path]stringyes (if the position type is text)File path after change.
position[old_path]stringyes (if the position type is text)File path before change.
position[position_type]stringyesType of the position reference. Allowed values: text or image.
commit_idstringnoSHA referencing commit to start this thread on.
created_atstringnoDate time string, ISO 8601 formatted, such as 2016-03-11T03:45:40Z. Requires administrator or project/group owner rights.
positionhashnoPosition when creating a diff note.
position[new_line]integernoFor text diff notes, the line number after change.
position[old_line]integernoFor text diff notes, the line number before change.
position[line_range]hashnoLine range for a multi-line diff note.
position[width]integernoFor image diff notes, width of the image.
position[height]integernoFor image diff notes, height of the image.
position[x]floatnoFor image diff notes, X coordinate.
position[y]floatnoFor image diff notes, Y coordinate.

Create a new thread on the overview page

curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/merge_requests/11/discussions?body=comment"

Create a new thread in the merge request diff

  • Both position[old_path] and position[new_path] are required and must refer to the file path before and after the change.
  • To create a thread on an added line (highlighted in green in the merge request diff), use position[new_line] and don’t include position[old_line].
  • To create a thread on a removed line (highlighted in red in the merge request diff), use position[old_line] and don’t include position[new_line].
  • To create a thread on an unchanged line, include both position[new_line] and position[old_line] for the line. These positions might not be the same if earlier changes in the file changed the line number. For the discussion about a fix, see issue 32516.
  • If you specify incorrect base, head, start, or SHA parameters, you might run into the bug described in issue #296829).

To create a new thread:

  1. Get the latest merge request version:

    curl --header "PRIVATE-TOKEN: <your_access_token>" \
      "https://gitlab.example.com/api/v4/projects/5/merge_requests/11/versions"
    
  2. Note the details of the latest version, which is listed first in the response array.

    [
      {
        "id": 164560414,
        "head_commit_sha": "f9ce7e16e56c162edbc9e480108041cf6b0291fe",
        "base_commit_sha": "5e6dffa282c5129aa67cd227a0429be21bfdaf80",
        "start_commit_sha": "5e6dffa282c5129aa67cd227a0429be21bfdaf80",
        "created_at": "2021-03-30T09:18:27.351Z",
        "merge_request_id": 93958054,
        "state": "collected",
        "real_size": "2"
      },
      "previous versions are here"
    ]
    
  3. Create a new diff thread. This example creates a thread on an added line:

    curl --request POST --header "PRIVATE-TOKEN: <your_access_token>"\
      --form 'position[position_type]=text'\
      --form 'position[base_sha]=<use base_commit_sha from the versions response>'\
      --form 'position[head_sha]=<use head_commit_sha from the versions response>'\
      --form 'position[start_sha]=<use start_commit_sha from the versions response>'\
      --form 'position[new_path]=file.js'\
      --form 'position[old_path]=file.js'\
      --form 'position[new_line]=18'\
      --form 'body=test comment body'\
      "https://gitlab.example.com/api/v4/projects/5/merge_requests/11/discussions"
    

Parameters for multiline comments

Parameters for multiline comments only:

AttributeTypeRequiredDescription
position[line_range][end][line_code]stringyes Line code for the end line.
position[line_range][end][type]stringyesUse new for lines added by this commit, otherwise old.
position[line_range][start][line_code]stringyes Line code for the start line.
position[line_range][start][type]stringyesUse new for lines added by this commit, otherwise old.
position[line_range][end]hashnoMultiline note ending line.
position[line_range][start]hashnoMultiline note starting line.

Line code

A line code is of the form <SHA>_<old>_<new>, like this: adc83b19e793491b1c6ea0fd8b46cd9f32e292fc_5_5

  • <SHA> is the SHA1 hash of the filename.
  • <old> is the line number before the change.
  • <new> is the line number after the change.

For example, if a commit (<COMMIT_ID>) deletes line 463 in the README, you can comment on the deletion by referencing line 463 in the old file:

curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" \
  --form "note=Very clever to remove this unnecessary line!" \
  --form "path=README" --form "line=463" --form "line_type=old" \
  "https://gitlab.com/api/v4/projects/47/repository/commits/<COMMIT_ID>/comments"

If a commit (<COMMIT_ID>) adds line 157 to hello.rb, you can comment on the addition by referencing line 157 in the new file:

curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" \
  --form "note=This is brilliant!" --form "path=hello.rb" \
  --form "line=157" --form "line_type=new" \
  "https://gitlab.com/api/v4/projects/47/repository/commits/<COMMIT_ID>/comments"

Resolve a merge request thread

Resolve or unresolve a thread of discussion in a merge request.

Prerequisite:

  • You must have at least the Developer role, or be the author of the change being reviewed.
PUT /projects/:id/merge_requests/:merge_request_iid/discussions/:discussion_id

Parameters:

AttributeTypeRequiredDescription
idinteger/stringyesThe ID or URL-encoded path of the project.
discussion_idstringyesThe ID of a thread.
merge_request_iidintegeryesThe IID of a merge request.
resolvedbooleanyesResolve or unresolve the discussion.
curl --request PUT --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/merge_requests/11/discussions/<discussion_id>?resolved=true"

Add note to existing merge request thread

Adds a new note to the thread. This can also create a thread from a single comment.

POST /projects/:id/merge_requests/:merge_request_iid/discussions/:discussion_id/notes

Parameters:

AttributeTypeRequiredDescription
bodystringyesThe content of the note or reply.
idinteger/stringyesThe ID or URL-encoded path of the project.
discussion_idstringyesThe ID of a thread.
merge_request_iidintegeryesThe IID of a merge request.
note_idintegeryesThe ID of a thread note.
created_atstringnoDate time string, ISO 8601 formatted, such as 2016-03-11T03:45:40Z. Requires administrator or project/group owner rights.
curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/merge_requests/11/discussions/<discussion_id>/notes?body=comment"

Modify an existing merge request thread note

Modify or resolve an existing thread note of a merge request.

PUT /projects/:id/merge_requests/:merge_request_iid/discussions/:discussion_id/notes/:note_id

Parameters:

AttributeTypeRequiredDescription
discussion_idstringyesThe ID of a thread.
idinteger or stringyesThe ID or URL-encoded path of the project.
merge_request_iidintegeryesThe IID of a merge request.
note_idintegeryesThe ID of a thread note.
bodystringnoThe content of the note or reply. Exactly one of body or resolved must be set.
resolvedbooleannoResolve or unresolve the note. Exactly one of body or resolved must be set.
curl --request PUT --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/merge_requests/11/discussions/<discussion_id>/notes/1108?body=comment"

Resolving a note:

curl --request PUT --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/merge_requests/11/discussions/<discussion_id>/notes/1108?resolved=true"

Delete a merge request thread note

Deletes an existing thread note of a merge request.

DELETE /projects/:id/merge_requests/:merge_request_iid/discussions/:discussion_id/notes/:note_id

Parameters:

AttributeTypeRequiredDescription
discussion_idstringyesThe ID of a thread.
idinteger or stringyesThe ID or URL-encoded path of the project.
merge_request_iidintegeryesThe IID of a merge request.
note_idintegeryesThe ID of a thread note.
curl --request DELETE --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/merge_requests/11/discussions/636"

Commits

List project commit discussion items

Gets a list of all discussion items for a single commit.

GET /projects/:id/repository/commits/:commit_id/discussions
AttributeTypeRequiredDescription
commit_idstringyesThe SHA of a commit.
idinteger or stringyesThe ID or URL-encoded path of the project.
[
  {
    "id": "6a9c1750b37d513a43987b574953fceb50b03ce7",
    "individual_note": false,
    "notes": [
      {
        "id": 1126,
        "type": "DiscussionNote",
        "body": "discussion text",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-03T21:54:39.668Z",
        "updated_at": "2018-03-03T21:54:39.668Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Commit",
        "project_id": 5,
        "noteable_iid": null,
        "resolvable": false
      },
      {
        "id": 1129,
        "type": "DiscussionNote",
        "body": "reply to the discussion",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-04T13:38:02.127Z",
        "updated_at": "2018-03-04T13:38:02.127Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Commit",
        "project_id": 5,
        "noteable_iid": null,
        "resolvable": false
      }
    ]
  },
  {
    "id": "87805b7c09016a7058e91bdbe7b29d1f284a39e6",
    "individual_note": true,
    "notes": [
      {
        "id": 1128,
        "type": null,
        "body": "a single comment",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-04T09:17:22.520Z",
        "updated_at": "2018-03-04T09:17:22.520Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Commit",
        "project_id": 5,
        "noteable_iid": null,
        "resolvable": false
      }
    ]
  }
]

Diff comments contain also position:

[
  {
    "id": "87805b7c09016a7058e91bdbe7b29d1f284a39e6",
    "individual_note": false,
    "notes": [
      {
        "id": 1128,
        "type": "DiffNote",
        "body": "diff comment",
        "attachment": null,
        "author": {
          "id": 1,
          "name": "root",
          "username": "root",
          "state": "active",
          "avatar_url": "https://www.gravatar.com/avatar/00afb8fb6ab07c3ee3e9c1f38777e2f4?s=80&d=identicon",
          "web_url": "http://localhost:3000/root"
        },
        "created_at": "2018-03-04T09:17:22.520Z",
        "updated_at": "2018-03-04T09:17:22.520Z",
        "system": false,
        "noteable_id": 3,
        "noteable_type": "Commit",
        "project_id": 5,
        "noteable_iid": null,
        "position": {
          "base_sha": "b5d6e7b1613fca24d250fa8e5bc7bcc3dd6002ef",
          "start_sha": "7c9c2ead8a320fb7ba0b4e234bd9529a2614e306",
          "head_sha": "4803c71e6b1833ca72b8b26ef2ecd5adc8a38031",
          "old_path": "package.json",
          "new_path": "package.json",
          "position_type": "text",
          "old_line": 27,
          "new_line": 27
        },
        "resolvable": false
      }
    ]
  }
]
curl --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/repository/commits/<commit_id>/discussions"

Get single commit discussion item

Returns a single discussion item for a specific project commit

GET /projects/:id/repository/commits/:commit_id/discussions/:discussion_id

Parameters:

AttributeTypeRequiredDescription
commit_idstringyesThe SHA of a commit.
discussion_idstringyesThe ID of a discussion item.
idinteger or stringyesThe ID or URL-encoded path of the project.
curl --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/repository/commits/<commit_id>/discussions/<discussion_id>"

Create new commit thread

Creates a new thread to a single project commit. Similar to creating a note but other comments (replies) can be added to it later.

POST /projects/:id/repository/commits/:commit_id/discussions

Parameters:

AttributeTypeRequiredDescription
bodystringyesThe content of the thread.
commit_idstringyesThe SHA of a commit.
idinteger/stringyesThe ID or URL-encoded path of the project.
position[base_sha]stringyesSHA of the parent commit.
position[head_sha]stringyesThe SHA of this commit. Same as commit_id.
position[start_sha]stringyesSHA of the parent commit.
position[position_type]stringyesType of the position reference. Allowed values: text or image.
created_atstringnoDate time string, ISO 8601 formatted, such as 2016-03-11T03:45:40Z. Requires administrator or project/group owner rights.
positionhashnoPosition when creating a diff note.
position[new_path]stringnoFile path after change.
position[new_line]integernoLine number after change.
position[old_path]stringnoFile path before change.
position[old_line]integernoLine number before change.
position[height]integernoFor image diff notes, image height.
position[width]integernoFor image diff notes, image width.
position[x]integernoFor image diff notes, X coordinate.
position[y]integernoFor image diff notes, Y coordinate.
curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/repository/commits/<commit_id>/discussions?body=comment"

The rules for creating the API request are the same as when creating a new thread in the merge request diff. The exceptions:

  • base_sha
  • head_sha
  • start_sha

Add note to existing commit thread

Adds a new note to the thread.

POST /projects/:id/repository/commits/:commit_id/discussions/:discussion_id/notes

Parameters:

AttributeTypeRequiredDescription
bodystringyesThe content of the note or reply.
commit_idstringyesThe SHA of a commit.
discussion_idstringyesThe ID of a thread.
idinteger or stringyesThe ID or URL-encoded path of the project.
note_idintegeryesThe ID of a thread note.
created_atstringnoDate time string, ISO 8601 formatted, such 2016-03-11T03:45:40Z. Requires administrator or project/group owner rights.
curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/repository/commits/<commit_id>/discussions/<discussion_id>/notes?body=comment

Modify an existing commit thread note

Modify or resolve an existing thread note of a commit.

PUT /projects/:id/repository/commits/:commit_id/discussions/:discussion_id/notes/:note_id

Parameters:

AttributeTypeRequiredDescription
commit_idstringyesThe SHA of a commit.
discussion_idstringyesThe ID of a thread.
idinteger or stringyesThe ID or URL-encoded path of the project.
note_idintegeryesThe ID of a thread note.
bodystringnoThe content of a note.
curl --request PUT --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/repository/commits/<commit_id>/discussions/<discussion_id>/notes/1108?body=comment"

Resolving a note:

curl --request PUT --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/repository/commits/<commit_id>/discussions/<discussion_id>/notes/1108?resolved=true"

Delete a commit thread note

Deletes an existing thread note of a commit.

DELETE /projects/:id/repository/commits/:commit_id/discussions/:discussion_id/notes/:note_id

Parameters:

AttributeTypeRequiredDescription
idinteger or stringyesThe ID or URL-encoded path of the project.
commit_idstringyesThe SHA of a commit.
discussion_idstringyesThe ID of a thread.
note_idintegeryesThe ID of a thread note.
curl --request DELETE --header "PRIVATE-TOKEN: <your_access_token>" \
  "https://gitlab.example.com/api/v4/projects/5/repository/commits/<commit_id>/discussions/<discussion_id>/notes/636"