Linked epics API

DETAILS: Tier: Ultimate Offering: GitLab.com, Self-managed, GitLab Dedicated

Introduced in GitLab 14.9 with a flag named related_epics_widget. Enabled by default.

Feature flag related_epics_widget removed in GitLab 15.0.

WARNING: The Epics REST API was deprecated in GitLab 17.0 and is planned for removal in v5 of the API. In GitLab 17.4 or later, if your administrator enabled the new look for epics, use the Work Items API instead. For more information, see the guide how to migrate your existing APIs. This change is a breaking change.

If the Related Epics feature is not available in your GitLab plan, a 403 status code is returned.

List related epic links from a group

Get a list of a given group's related epic links within group and sub-groups, filtered according to the user authorizations. The user needs to have access to the source_epic and target_epic to access the related epic link.

GET /groups/:id/related_epic_links

Supported attributes:

Attribute	Type	Required	Description
`id`	integer/string	Yes	ID or URL-encoded path of the group.
`created_after`	string	no	Return related epic links created on or after the given time. Format: ISO 8601 (`YYYY-MM-DDTHH:MM:SSZ`)
`created_before`	string	no	Return related epic links created on or before the given time. Format: ISO 8601 (`YYYY-MM-DDTHH:MM:SSZ`)
`updated_after`	string	no	Return related epic links updated on or after the given time. Format: ISO 8601 (`YYYY-MM-DDTHH:MM:SSZ`)
`updated_before`	string	no	Return related epic links updated on or before the given time. Format: ISO 8601 (`YYYY-MM-DDTHH:MM:SSZ`)

Example request:

curl --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/groups/:id/related_epic_links"

Example response:

[
  {
    "id": 1,
    "created_at": "2022-01-31T15:10:44.988Z",
    "updated_at": "2022-01-31T15:10:44.988Z",
    "link_type": "relates_to",
    "source_epic": {
      "id": 21,
      "iid": 1,
      "color": "#1068bf",
      "text_color": "#FFFFFF",
      "group_id": 26,
      "parent_id": null,
      "parent_iid": null,
      "title": "Aspernatur recusandae distinctio omnis et qui est iste.",
      "description": "some description",
      "confidential": false,
      "author": {
        "id": 15,
        "username": "trina",
        "name": "Theresia Robel",
        "state": "active",
        "avatar_url": "https://www.gravatar.com/avatar/085e28df717e16484cbf6ceca75e9a93?s=80&d=identicon",
        "web_url": "http://gitlab.example.com/trina"
      },
      "start_date": null,
      "end_date": null,
      "due_date": null,
      "state": "opened",
      "web_url": "http://gitlab.example.com/groups/flightjs/-/epics/1",
      "references": {
        "short": "&1",
        "relative": "&1",
        "full": "flightjs&1"
      },
      "created_at": "2022-01-31T15:10:44.988Z",
      "updated_at": "2022-03-16T09:32:35.712Z",
      "closed_at": null,
      "labels": [],
      "upvotes": 0,
      "downvotes": 0,
      "_links": {
        "self": "http://gitlab.example.com/api/v4/groups/26/epics/1",
        "epic_issues": "http://gitlab.example.com/api/v4/groups/26/epics/1/issues",
        "group": "http://gitlab.example.com/api/v4/groups/26",
        "parent": null
      }
    },
    "target_epic": {
      "id": 25,
      "iid": 5,
      "color": "#1068bf",
      "text_color": "#FFFFFF",
      "group_id": 26,
      "parent_id": null,
      "parent_iid": null,
      "title": "Aut assumenda id nihil distinctio fugiat vel numquam est.",
      "description": "some description",
      "confidential": false,
      "author": {
        "id": 3,
        "username": "valerie",
        "name": "Erika Wolf",
        "state": "active",
        "avatar_url": "https://www.gravatar.com/avatar/9ef7666abb101418a4716a8ed4dded80?s=80&d=identicon",
        "web_url": "http://gitlab.example.com/valerie"
      },
      "start_date": null,
      "end_date": null,
      "due_date": null,
      "state": "opened",
      "web_url": "http://gitlab.example.com/groups/flightjs/-/epics/5",
      "references": {
        "short": "&5",
        "relative": "&5",
        "full": "flightjs&5"
      },
      "created_at": "2022-01-31T15:10:45.080Z",
      "updated_at": "2022-03-16T09:32:35.842Z",
      "closed_at": null,
      "labels": [],
      "upvotes": 0,
      "downvotes": 0,
      "_links": {
        "self": "http://gitlab.example.com/api/v4/groups/26/epics/5",
        "epic_issues": "http://gitlab.example.com/api/v4/groups/26/epics/5/issues",
        "group": "http://gitlab.example.com/api/v4/groups/26",
        "parent": null
      }
    },
  }
]

List linked epics from an epic

Get a list of a given epic's linked epics filtered according to the user authorizations.

GET /groups/:id/epics/:epic_iid/related_epics

Supported attributes:

Attribute	Type	Required	Description
`epic_iid`	integer	Yes	Internal ID of a group's epic
`id`	integer/string	Yes	ID or URL-encoded path of the group.

Example request:

curl --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/groups/:id/epics/:epic_iid/related_epics"

Example response:

[
   {
      "id":2,
      "iid":2,
      "color":"#1068bf",
      "text_color":"#FFFFFF",
      "group_id":2,
      "parent_id":null,
      "parent_iid":null,
      "title":"My title 2",
      "description":null,
      "confidential":false,
      "author":{
         "id":3,
         "username":"user3",
         "name":"Sidney Jones4",
         "state":"active",
         "avatar_url":"https://www.gravatar.com/avatar/82797019f038ab535a84c6591e7bc936?s=80u0026d=identicon",
         "web_url":"http://localhost/user3"
      },
      "start_date":null,
      "end_date":null,
      "due_date":null,
      "state":"opened",
      "web_url":"http://localhost/groups/group1/-/epics/2",
      "references":{
         "short":"u00262",
         "relative":"u00262",
         "full":"group1u00262"
      },
      "created_at":"2022-03-10T18:35:24.479Z",
      "updated_at":"2022-03-10T18:35:24.479Z",
      "closed_at":null,
      "labels":[

      ],
      "upvotes":0,
      "downvotes":0,
      "_links":{
         "self":"http://localhost/api/v4/groups/2/epics/2",
         "epic_issues":"http://localhost/api/v4/groups/2/epics/2/issues",
         "group":"http://localhost/api/v4/groups/2",
         "parent":null
      },
      "related_epic_link_id":1,
      "link_type":"relates_to",
      "link_created_at":"2022-03-10T18:35:24.496+00:00",
      "link_updated_at":"2022-03-10T18:35:24.496+00:00"
   }
]

Create a related epic link

Minimum required role for the group changed from Reporter to Guest in GitLab 15.8.

Create a two-way relation between two epics. The user must have at least the Guest role for both groups.

POST /groups/:id/epics/:epic_iid/related_epics

Supported attributes:

Attribute	Type	Required	Description
`epic_iid`	integer	Yes	Internal ID of a group's epic.
`id`	integer/string	Yes	ID or URL-encoded path of the group.
`target_epic_iid`	integer/string	Yes	Internal ID of a target group's epic.
`target_group_id`	integer/string	Yes	ID or URL-encoded path of the target group.
`link_type`	string	No	Type of the relation (`relates_to`, `blocks`, `is_blocked_by`), defaults to `relates_to`.

Example request:

curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/groups/26/epics/1/related_epics?target_group_id=26&target_epic_iid=5"

Example response:

{
  "id": 1,
  "created_at": "2022-01-31T15:10:44.988Z",
  "updated_at": "2022-01-31T15:10:44.988Z",
  "link_type": "relates_to",
  "source_epic": {
    "id": 21,
    "iid": 1,
    "color": "#1068bf",
    "text_color": "#FFFFFF",
    "group_id": 26,
    "parent_id": null,
    "parent_iid": null,
    "title": "Aspernatur recusandae distinctio omnis et qui est iste.",
    "description": "some description",
    "confidential": false,
    "author": {
      "id": 15,
      "username": "trina",
      "name": "Theresia Robel",
      "state": "active",
      "avatar_url": "https://www.gravatar.com/avatar/085e28df717e16484cbf6ceca75e9a93?s=80&d=identicon",
      "web_url": "http://gitlab.example.com/trina"
    },
    "start_date": null,
    "end_date": null,
    "due_date": null,
    "state": "opened",
    "web_url": "http://gitlab.example.com/groups/flightjs/-/epics/1",
    "references": {
      "short": "&1",
      "relative": "&1",
      "full": "flightjs&1"
    },
    "created_at": "2022-01-31T15:10:44.988Z",
    "updated_at": "2022-03-16T09:32:35.712Z",
    "closed_at": null,
    "labels": [],
    "upvotes": 0,
    "downvotes": 0,
    "_links": {
      "self": "http://gitlab.example.com/api/v4/groups/26/epics/1",
      "epic_issues": "http://gitlab.example.com/api/v4/groups/26/epics/1/issues",
      "group": "http://gitlab.example.com/api/v4/groups/26",
      "parent": null
    }
  },
  "target_epic": {
    "id": 25,
    "iid": 5,
    "color": "#1068bf",
    "text_color": "#FFFFFF",
    "group_id": 26,
    "parent_id": null,
    "parent_iid": null,
    "title": "Aut assumenda id nihil distinctio fugiat vel numquam est.",
    "description": "some description",
    "confidential": false,
    "author": {
      "id": 3,
      "username": "valerie",
      "name": "Erika Wolf",
      "state": "active",
      "avatar_url": "https://www.gravatar.com/avatar/9ef7666abb101418a4716a8ed4dded80?s=80&d=identicon",
      "web_url": "http://gitlab.example.com/valerie"
    },
    "start_date": null,
    "end_date": null,
    "due_date": null,
    "state": "opened",
    "web_url": "http://gitlab.example.com/groups/flightjs/-/epics/5",
    "references": {
      "short": "&5",
      "relative": "&5",
      "full": "flightjs&5"
    },
    "created_at": "2022-01-31T15:10:45.080Z",
    "updated_at": "2022-03-16T09:32:35.842Z",
    "closed_at": null,
    "labels": [],
    "upvotes": 0,
    "downvotes": 0,
    "_links": {
      "self": "http://gitlab.example.com/api/v4/groups/26/epics/5",
      "epic_issues": "http://gitlab.example.com/api/v4/groups/26/epics/5/issues",
      "group": "http://gitlab.example.com/api/v4/groups/26",
      "parent": null
    }
  },
}

Delete a related epic link

Minimum required role for the group changed from Reporter to Guest in GitLab 15.8.

Delete a two-way relation between two epics. The user must have at least the Guest role for both groups.

DELETE /groups/:id/epics/:epic_iid/related_epics/:related_epic_link_id

Supported attributes:

Attribute	Type	Required	Description
`epic_iid`	integer	Yes	Internal ID of a group's epic.
`id`	integer/string	Yes	ID or URL-encoded path of the group.
`related_epic_link_id`	integer/string	Yes	Internal ID of a related epic link.

Example request:

curl --request DELETE --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/groups/26/epics/1/related_epics/1"

Example response:

{
  "id": 1,
  "created_at": "2022-01-31T15:10:44.988Z",
  "updated_at": "2022-01-31T15:10:44.988Z",
  "link_type": "relates_to",
  "source_epic": {
    "id": 21,
    "iid": 1,
    "color": "#1068bf",
    "text_color": "#FFFFFF",
    "group_id": 26,
    "parent_id": null,
    "parent_iid": null,
    "title": "Aspernatur recusandae distinctio omnis et qui est iste.",
    "description": "some description",
    "confidential": false,
    "author": {
      "id": 15,
      "username": "trina",
      "name": "Theresia Robel",
      "state": "active",
      "avatar_url": "https://www.gravatar.com/avatar/085e28df717e16484cbf6ceca75e9a93?s=80&d=identicon",
      "web_url": "http://gitlab.example.com/trina"
    },
    "start_date": null,
    "end_date": null,
    "due_date": null,
    "state": "opened",
    "web_url": "http://gitlab.example.com/groups/flightjs/-/epics/1",
    "references": {
      "short": "&1",
      "relative": "&1",
      "full": "flightjs&1"
    },
    "created_at": "2022-01-31T15:10:44.988Z",
    "updated_at": "2022-03-16T09:32:35.712Z",
    "closed_at": null,
    "labels": [],
    "upvotes": 0,
    "downvotes": 0,
    "_links": {
      "self": "http://gitlab.example.com/api/v4/groups/26/epics/1",
      "epic_issues": "http://gitlab.example.com/api/v4/groups/26/epics/1/issues",
      "group": "http://gitlab.example.com/api/v4/groups/26",
      "parent": null
    }
  },
  "target_epic": {
    "id": 25,
    "iid": 5,
    "color": "#1068bf",
    "text_color": "#FFFFFF",
    "group_id": 26,
    "parent_id": null,
    "parent_iid": null,
    "title": "Aut assumenda id nihil distinctio fugiat vel numquam est.",
    "description": "some description",
    "confidential": false,
    "author": {
      "id": 3,
      "username": "valerie",
      "name": "Erika Wolf",
      "state": "active",
      "avatar_url": "https://www.gravatar.com/avatar/9ef7666abb101418a4716a8ed4dded80?s=80&d=identicon",
      "web_url": "http://gitlab.example.com/valerie"
    },
    "start_date": null,
    "end_date": null,
    "due_date": null,
    "state": "opened",
    "web_url": "http://gitlab.example.com/groups/flightjs/-/epics/5",
    "references": {
      "short": "&5",
      "relative": "&5",
      "full": "flightjs&5"
    },
    "created_at": "2022-01-31T15:10:45.080Z",
    "updated_at": "2022-03-16T09:32:35.842Z",
    "closed_at": null,
    "labels": [],
    "upvotes": 0,
    "downvotes": 0,
    "_links": {
      "self": "http://gitlab.example.com/api/v4/groups/26/epics/5",
      "epic_issues": "http://gitlab.example.com/api/v4/groups/26/epics/5/issues",
      "group": "http://gitlab.example.com/api/v4/groups/26",
      "parent": null
    }
  },
}