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.

Issues

List project issue discussion items

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

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

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`issue_iid`	integer	yes	The 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", "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", "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", "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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`issue_iid`	integer	yes	The IID of an issue
`discussion_id`	integer	yes	The 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. This is similar to creating a note but other comments (replies) can be added to it later.

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

Parameters:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`issue_iid`	integer	yes	The IID of an issue
`body`	string	yes	The content of the thread
`created_at`	string	no	Date 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.

WARNING 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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`issue_iid`	integer	yes	The IID of an issue
`discussion_id`	integer	yes	The ID of a thread
`note_id`	integer	yes	The ID of a thread note
`body`	string	yes	The content of the note/reply
`created_at`	string	no	Date 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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`issue_iid`	integer	yes	The IID of an issue
`discussion_id`	integer	yes	The ID of a thread
`note_id`	integer	yes	The ID of a thread note
`body`	string	yes	The content of the note/reply

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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`issue_iid`	integer	yes	The IID of an issue
`discussion_id`	integer	yes	The ID of a discussion
`note_id`	integer	yes	The 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

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`snippet_id`	integer	yes	The 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", "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", "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", "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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`snippet_id`	integer	yes	The ID of an snippet
`discussion_id`	integer	yes	The ID of a discussion item

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. This is similar to creating a note but other comments (replies) can be added to it later.

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

Parameters:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`snippet_id`	integer	yes	The ID of an snippet
`body`	string	yes	The content of a discussion
`created_at`	string	no	Date 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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`snippet_id`	integer	yes	The ID of an snippet
`discussion_id`	integer	yes	The ID of a thread
`note_id`	integer	yes	The ID of a thread note
`body`	string	yes	The content of the note/reply
`created_at`	string	no	Date 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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`snippet_id`	integer	yes	The ID of an snippet
`discussion_id`	integer	yes	The ID of a thread
`note_id`	integer	yes	The ID of a thread note
`body`	string	yes	The content of the note/reply

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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`snippet_id`	integer	yes	The ID of an snippet
`discussion_id`	integer	yes	The ID of a discussion
`note_id`	integer	yes	The ID of a discussion note

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

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the group
`epic_id`	integer	yes	The ID of an epic

[ { "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", "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", "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", "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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the group
`epic_id`	integer	yes	The ID of an epic
`discussion_id`	integer	yes	The ID of a discussion item

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. This is similar to creating a note but other comments (replies) can be added to it later.

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

Parameters:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the group
`epic_id`	integer	yes	The ID of an epic
`body`	string	yes	The content of the thread
`created_at`	string	no	Date 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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the group
`epic_id`	integer	yes	The ID of an epic
`discussion_id`	integer	yes	The ID of a thread
`note_id`	integer	yes	The ID of a thread note
`body`	string	yes	The content of the note/reply
`created_at`	string	no	Date 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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the group
`epic_id`	integer	yes	The ID of an epic
`discussion_id`	integer	yes	The ID of a thread
`note_id`	integer	yes	The ID of a thread note
`body`	string	yes	The content of note/reply

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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the group
`epic_id`	integer	yes	The ID of an epic
`discussion_id`	integer	yes	The ID of a thread
`note_id`	integer	yes	The 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

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`merge_request_iid`	integer	yes	The 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", "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", "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", "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", "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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`merge_request_iid`	integer	yes	The IID of a merge request
`discussion_id`	integer	yes	The ID of a discussion item

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. This is similar to creating a note but other comments (replies) can be added to it later.

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

Parameters for all comments:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`merge_request_iid`	integer	yes	The IID of a merge request
`body`	string	yes	The content of the thread
`commit_id`	string	no	SHA referencing commit to start this thread on
`created_at`	string	no	Date time string, ISO 8601 formatted, such as `2016-03-11T03:45:40Z` (requires administrator or project/group owner rights)
`position`	hash	no	Position when creating a diff note
`position[base_sha]`	string	yes	Base commit SHA in the source branch
`position[start_sha]`	string	yes	SHA referencing commit in target branch
`position[head_sha]`	string	yes	SHA referencing HEAD of this merge request
`position[position_type]`	string	yes	Type of the position reference’, allowed values: `text` or `image`
`position[new_path]`	string	yes (if the position type is `text`)	File path after change
`position[new_line]`	integer	no	Line number after change (for `text` diff notes)
`position[old_path]`	string	yes (if the position type is `text`)	File path before change
`position[old_line]`	integer	no	Line number before change (for `text` diff notes)
`position[line_range]`	hash	no	Line range for a multi-line diff note
`position[width]`	integer	no	Width of the image (for `image` diff notes)
`position[height]`	integer	no	Height of the image (for `image` diff notes)
`position[x]`	float	no	X coordinate (for `image` diff notes)
`position[y]`	float	no	Y coordinate (for `image` diff notes)

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. This is a bug that we plan to fix in GraphQL createDiffNote forces clients to compute redundant information (#325161).
If you specify incorrect base/head/start SHA parameters, you might run into the following bug: Merge request comments receive “download” link instead of inline code (#296829).

To create a new thread:

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" 

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" ] 

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:

Attribute	Type	Required	Description
`position[line_range][start]`	hash	no	Multiline note starting line
`position[line_range][start][line_code]`	string	yes	Line code for the start line
`position[line_range][start][type]`	string	yes	Use `new` for lines added by this commit, otherwise `old`.
`position[line_range][end]`	hash	no	Multiline note ending line
`position[line_range][end][line_code]`	string	yes	Line code for the end line
`position[line_range][end][type]`	string	yes	Use `new` for lines added by this commit, otherwise `old`.

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: [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: [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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`merge_request_iid`	integer	yes	The IID of a merge request
`discussion_id`	integer	yes	The ID of a thread
`resolved`	boolean	yes	Resolve/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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`merge_request_iid`	integer	yes	The IID of a merge request
`discussion_id`	integer	yes	The ID of a thread
`note_id`	integer	yes	The ID of a thread note
`body`	string	yes	The content of the note/reply
`created_at`	string	no	Date 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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`merge_request_iid`	integer	yes	The IID of a merge request
`discussion_id`	integer	yes	The ID of a thread
`note_id`	integer	yes	The ID of a thread note
`body`	string	no	The content of the note/reply (exactly one of `body` or `resolved` must be set
`resolved`	boolean	no	Resolve/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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`merge_request_iid`	integer	yes	The IID of a merge request
`discussion_id`	integer	yes	The ID of a thread
`note_id`	integer	yes	The 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

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`commit_id`	string	yes	The SHA of a commit

[ { "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", "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", "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", "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", "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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`commit_id`	string	yes	The SHA of a commit
`discussion_id`	string	yes	The ID of a discussion item

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. This is similar to creating a note but other comments (replies) can be added to it later.

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

Parameters:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`commit_id`	string	yes	The SHA of a commit
`body`	string	yes	The content of the thread
`created_at`	string	no	Date time string, ISO 8601 formatted, such as `2016-03-11T03:45:40Z` (requires administrator or project/group owner rights)
`position`	hash	no	Position when creating a diff note
`position[base_sha]`	string	yes	SHA of the parent commit
`position[start_sha]`	string	yes	SHA of the parent commit
`position[head_sha]`	string	yes	The SHA of this commit (same as `commit_id`)
`position[position_type]`	string	yes	Type of the position reference’, allowed values: `text` or `image`
`position[new_path]`	string	no	File path after change
`position[new_line]`	integer	no	Line number after change
`position[old_path]`	string	no	File path before change
`position[old_line]`	integer	no	Line number before change
`position[width]`	integer	no	Width of the image (for `image` diff notes)
`position[height]`	integer	no	Height of the image (for `image` diff notes)
`position[x]`	integer	no	X coordinate (for `image` diff notes)
`position[y]`	integer	no	Y coordinate (for `image` diff notes)

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, with the exception of base_sha, start_sha, and head_sha attributes.

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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`commit_id`	string	yes	The SHA of a commit
`discussion_id`	string	yes	The ID of a thread
`note_id`	integer	yes	The ID of a thread note
`body`	string	yes	The content of the note/reply
`created_at`	string	no	Date 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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`commit_id`	string	yes	The SHA of a commit
`discussion_id`	string	yes	The ID of a thread
`note_id`	integer	yes	The ID of a thread note
`body`	string	no	The 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:

Attribute	Type	Required	Description
`id`	integer/string	yes	The ID or URL-encoded path of the project
`commit_id`	string	yes	The SHA of a commit
`discussion_id`	string	yes	The ID of a thread
`note_id`	integer	yes	The 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" 

Discussions API

Discussions pagination

Issues

List project issue discussion items

Get single issue discussion item

Create new issue thread

Add note to existing issue thread

Modify existing issue thread note

Delete an issue thread note

Snippets

List project snippet discussion items

Get single snippet discussion item

Create new snippet thread

Add note to existing snippet thread

Modify existing snippet thread note

Delete a snippet thread note

Epics

List group epic discussion items

Get single epic discussion item

Create new epic thread

Add note to existing epic thread

Modify existing epic thread note

Delete an epic thread note

Merge requests

List project merge request discussion items

Get single merge request discussion item

Create new merge request thread

Create a new thread on the overview page

Create a new thread in the merge request diff

Parameters for multiline comments

Line code

Resolve a merge request thread

Add note to existing merge request thread

Modify an existing merge request thread note

Delete a merge request thread note

Commits

List project commit discussion items

Get single commit discussion item

Create new commit thread

Add note to existing commit thread

Modify an existing commit thread note

Delete a commit thread note

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