課題アサイン先の REST API のエンドポイント

Issue およびPull Requestをアサインされた人について

この REST API を使い、Issue と pull request で担当者を表示、追加、削除できます。すべてのPull Requestは Issue ですが、すべての Issue がPull Requestというわけではありません。このため、担当者、ラベル、マイルストーンの管理など、両機能で "共通する" アクションは Issues エンドポイント内に用意されています。

List assignees

Lists the available assignees for issues in a repository.

Fine-grained access tokens for "List assignees"

This endpoint works with the following fine-grained token types:

The fine-grained token must have at least one of the following permission sets:

"Issues" repository permissions (read)
"Pull requests" repository permissions (read)

This endpoint can be used without authentication or the aforementioned permissions if only public resources are requested.

"List assignees" のパラメーター

ヘッダー
名前, タイプ, 説明
`accept` string Setting to `application/vnd.github+json` is recommended.

パスパラメーター
名前, タイプ, 説明
`owner` string 必須 The account owner of the repository. The name is not case sensitive.
`repo` string 必須 The name of the repository without the `.git` extension. The name is not case sensitive.

クエリパラメーター
名前, タイプ, 説明
`per_page` integer The number of results per page (max 100). For more information, see "Using pagination in the REST API." デフォルト: `30`
`page` integer The page number of the results to fetch. For more information, see "Using pagination in the REST API." デフォルト: `1`

HTTP response status codes for "List assignees"

Status code	説明
`200`	OK
`404`	Resource not found

Code samples for "List assignees"

Request example

get/repos/{owner}/{repo}/assignees

curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  http(s)://HOSTNAME/api/v3/repos/OWNER/REPO/assignees

Response

Status: 200

[
  {
    "login": "octocat",
    "id": 1,
    "node_id": "MDQ6VXNlcjE=",
    "avatar_url": "https://github.com/images/error/octocat_happy.gif",
    "gravatar_id": "",
    "url": "https://HOSTNAME/users/octocat",
    "html_url": "https://github.com/octocat",
    "followers_url": "https://HOSTNAME/users/octocat/followers",
    "following_url": "https://HOSTNAME/users/octocat/following{/other_user}",
    "gists_url": "https://HOSTNAME/users/octocat/gists{/gist_id}",
    "starred_url": "https://HOSTNAME/users/octocat/starred{/owner}{/repo}",
    "subscriptions_url": "https://HOSTNAME/users/octocat/subscriptions",
    "organizations_url": "https://HOSTNAME/users/octocat/orgs",
    "repos_url": "https://HOSTNAME/users/octocat/repos",
    "events_url": "https://HOSTNAME/users/octocat/events{/privacy}",
    "received_events_url": "https://HOSTNAME/users/octocat/received_events",
    "type": "User",
    "site_admin": false
  }
]

Check if a user can be assigned

Checks if a user has permission to be assigned to an issue in this repository.

If the assignee can be assigned to issues in the repository, a 204 header with no content is returned.

Otherwise a 404 status code is returned.

Fine-grained access tokens for "Check if a user can be assigned"

This endpoint works with the following fine-grained token types:

The fine-grained token must have at least one of the following permission sets:

"Issues" repository permissions (read)
"Pull requests" repository permissions (read)

This endpoint can be used without authentication or the aforementioned permissions if only public resources are requested.

"Check if a user can be assigned" のパラメーター

ヘッダー
名前, タイプ, 説明
`accept` string Setting to `application/vnd.github+json` is recommended.

パスパラメーター
名前, タイプ, 説明
`owner` string 必須 The account owner of the repository. The name is not case sensitive.
`repo` string 必須 The name of the repository without the `.git` extension. The name is not case sensitive.
`assignee` string 必須

HTTP response status codes for "Check if a user can be assigned"

Status code	説明
`204`	If the `assignee` can be assigned to issues in the repository, a `204` header with no content is returned.
`404`	Otherwise a `404` status code is returned.

Code samples for "Check if a user can be assigned"

Request example

get/repos/{owner}/{repo}/assignees/{assignee}

curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  http(s)://HOSTNAME/api/v3/repos/OWNER/REPO/assignees/ASSIGNEE

If the `assignee` can be assigned to issues in the repository, a `204` header with no content is returned.

Status: 204

Add assignees to an issue

Adds up to 10 assignees to an issue. Users already assigned to an issue are not replaced.

Fine-grained access tokens for "Add assignees to an issue"

This endpoint works with the following fine-grained token types:

The fine-grained token must have at least one of the following permission sets:

"Issues" repository permissions (write)
"Pull requests" repository permissions (write)

"Add assignees to an issue" のパラメーター

ヘッダー
名前, タイプ, 説明
`accept` string Setting to `application/vnd.github+json` is recommended.

パスパラメーター
名前, タイプ, 説明
`owner` string 必須 The account owner of the repository. The name is not case sensitive.
`repo` string 必須 The name of the repository without the `.git` extension. The name is not case sensitive.
`issue_number` integer 必須 The number that identifies the issue.

ボディパラメータ
名前, タイプ, 説明
`assignees` array of strings Usernames of people to assign this issue to. NOTE: Only users with push access can add assignees to an issue. Assignees are silently ignored otherwise.

HTTP response status codes for "Add assignees to an issue"

Status code	説明
`201`	Created

Code samples for "Add assignees to an issue"

Request example

post/repos/{owner}/{repo}/issues/{issue_number}/assignees

curl -L \
  -X POST \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  http(s)://HOSTNAME/api/v3/repos/OWNER/REPO/issues/ISSUE_NUMBER/assignees \
  -d '{"assignees":["hubot","other_user"]}'

Response

Status: 201

{
  "id": 1,
  "node_id": "MDU6SXNzdWUx",
  "url": "https://HOSTNAME/repos/octocat/Hello-World/issues/1347",
  "repository_url": "https://HOSTNAME/repos/octocat/Hello-World",
  "labels_url": "https://HOSTNAME/repos/octocat/Hello-World/issues/1347/labels{/name}",
  "comments_url": "https://HOSTNAME/repos/octocat/Hello-World/issues/1347/comments",
  "events_url": "https://HOSTNAME/repos/octocat/Hello-World/issues/1347/events",
  "html_url": "https://github.com/octocat/Hello-World/issues/1347",
  "number": 1347,
  "state": "open",
  "title": "Found a bug",
  "body": "I'm having a problem with this.",
  "user": {
    "login": "octocat",
    "id": 1,
    "node_id": "MDQ6VXNlcjE=",
    "avatar_url": "https://github.com/images/error/octocat_happy.gif",
    "gravatar_id": "",
    "url": "https://HOSTNAME/users/octocat",
    "html_url": "https://github.com/octocat",
    "followers_url": "https://HOSTNAME/users/octocat/followers",
    "following_url": "https://HOSTNAME/users/octocat/following{/other_user}",
    "gists_url": "https://HOSTNAME/users/octocat/gists{/gist_id}",
    "starred_url": "https://HOSTNAME/users/octocat/starred{/owner}{/repo}",
    "subscriptions_url": "https://HOSTNAME/users/octocat/subscriptions",
    "organizations_url": "https://HOSTNAME/users/octocat/orgs",
    "repos_url": "https://HOSTNAME/users/octocat/repos",
    "events_url": "https://HOSTNAME/users/octocat/events{/privacy}",
    "received_events_url": "https://HOSTNAME/users/octocat/received_events",
    "type": "User",
    "site_admin": false
  },
  "pinned_comment": null,
  "labels": [
    {
      "id": 208045946,
      "node_id": "MDU6TGFiZWwyMDgwNDU5NDY=",
      "url": "https://HOSTNAME/repos/octocat/Hello-World/labels/bug",
      "name": "bug",
      "description": "Something isn't working",
      "color": "f29513",
      "default": true
    }
  ],
  "assignees": [
    {
      "login": "octocat",
      "id": 1,
      "node_id": "MDQ6VXNlcjE=",
      "avatar_url": "https://github.com/images/error/octocat_happy.gif",
      "gravatar_id": "",
      "url": "https://HOSTNAME/users/octocat",
      "html_url": "https://github.com/octocat",
      "followers_url": "https://HOSTNAME/users/octocat/followers",
      "following_url": "https://HOSTNAME/users/octocat/following{/other_user}",
      "gists_url": "https://HOSTNAME/users/octocat/gists{/gist_id}",
      "starred_url": "https://HOSTNAME/users/octocat/starred{/owner}{/repo}",
      "subscriptions_url": "https://HOSTNAME/users/octocat/subscriptions",
      "organizations_url": "https://HOSTNAME/users/octocat/orgs",
      "repos_url": "https://HOSTNAME/users/octocat/repos",
      "events_url": "https://HOSTNAME/users/octocat/events{/privacy}",
      "received_events_url": "https://HOSTNAME/users/octocat/received_events",
      "type": "User",
      "site_admin": false
    }
  ],
  "milestone": {
    "url": "https://HOSTNAME/repos/octocat/Hello-World/milestones/1",
    "html_url": "https://github.com/octocat/Hello-World/milestones/v1.0",
    "labels_url": "https://HOSTNAME/repos/octocat/Hello-World/milestones/1/labels",
    "id": 1002604,
    "node_id": "MDk6TWlsZXN0b25lMTAwMjYwNA==",
    "number": 1,
    "state": "open",
    "title": "v1.0",
    "description": "Tracking milestone for version 1.0",
    "creator": {
      "login": "octocat",
      "id": 1,
      "node_id": "MDQ6VXNlcjE=",
      "avatar_url": "https://github.com/images/error/octocat_happy.gif",
      "gravatar_id": "",
      "url": "https://HOSTNAME/users/octocat",
      "html_url": "https://github.com/octocat",
      "followers_url": "https://HOSTNAME/users/octocat/followers",
      "following_url": "https://HOSTNAME/users/octocat/following{/other_user}",
      "gists_url": "https://HOSTNAME/users/octocat/gists{/gist_id}",
      "starred_url": "https://HOSTNAME/users/octocat/starred{/owner}{/repo}",
      "subscriptions_url": "https://HOSTNAME/users/octocat/subscriptions",
      "organizations_url": "https://HOSTNAME/users/octocat/orgs",
      "repos_url": "https://HOSTNAME/users/octocat/repos",
      "events_url": "https://HOSTNAME/users/octocat/events{/privacy}",
      "received_events_url": "https://HOSTNAME/users/octocat/received_events",
      "type": "User",
      "site_admin": false
    },
    "open_issues": 4,
    "closed_issues": 8,
    "created_at": "2011-04-10T20:09:31Z",
    "updated_at": "2014-03-03T18:58:10Z",
    "closed_at": "2013-02-12T13:22:01Z",
    "due_on": "2012-10-09T23:39:01Z"
  },
  "locked": true,
  "active_lock_reason": "too heated",
  "comments": 0,
  "pull_request": {
    "url": "https://HOSTNAME/repos/octocat/Hello-World/pulls/1347",
    "html_url": "https://github.com/octocat/Hello-World/pull/1347",
    "diff_url": "https://github.com/octocat/Hello-World/pull/1347.diff",
    "patch_url": "https://github.com/octocat/Hello-World/pull/1347.patch"
  },
  "closed_at": null,
  "created_at": "2011-04-22T13:33:48Z",
  "updated_at": "2011-04-22T13:33:48Z",
  "closed_by": {
    "login": "octocat",
    "id": 1,
    "node_id": "MDQ6VXNlcjE=",
    "avatar_url": "https://github.com/images/error/octocat_happy.gif",
    "gravatar_id": "",
    "url": "https://HOSTNAME/users/octocat",
    "html_url": "https://github.com/octocat",
    "followers_url": "https://HOSTNAME/users/octocat/followers",
    "following_url": "https://HOSTNAME/users/octocat/following{/other_user}",
    "gists_url": "https://HOSTNAME/users/octocat/gists{/gist_id}",
    "starred_url": "https://HOSTNAME/users/octocat/starred{/owner}{/repo}",
    "subscriptions_url": "https://HOSTNAME/users/octocat/subscriptions",
    "organizations_url": "https://HOSTNAME/users/octocat/orgs",
    "repos_url": "https://HOSTNAME/users/octocat/repos",
    "events_url": "https://HOSTNAME/users/octocat/events{/privacy}",
    "received_events_url": "https://HOSTNAME/users/octocat/received_events",
    "type": "User",
    "site_admin": false
  },
  "author_association": "COLLABORATOR",
  "state_reason": "completed"
}

Remove assignees from an issue

Removes one or more assignees from an issue.

Fine-grained access tokens for "Remove assignees from an issue"

This endpoint works with the following fine-grained token types:

The fine-grained token must have at least one of the following permission sets:

"Issues" repository permissions (write)
"Pull requests" repository permissions (write)

"Remove assignees from an issue" のパラメーター

ヘッダー
名前, タイプ, 説明
`accept` string Setting to `application/vnd.github+json` is recommended.

パスパラメーター
名前, タイプ, 説明
`owner` string 必須 The account owner of the repository. The name is not case sensitive.
`repo` string 必須 The name of the repository without the `.git` extension. The name is not case sensitive.
`issue_number` integer 必須 The number that identifies the issue.

ボディパラメータ
名前, タイプ, 説明
`assignees` array of strings Usernames of assignees to remove from an issue. NOTE: Only users with push access can remove assignees from an issue. Assignees are silently ignored otherwise.

HTTP response status codes for "Remove assignees from an issue"

Status code	説明
`200`	OK

Code samples for "Remove assignees from an issue"

Request example

delete/repos/{owner}/{repo}/issues/{issue_number}/assignees

curl -L \
  -X DELETE \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  http(s)://HOSTNAME/api/v3/repos/OWNER/REPO/issues/ISSUE_NUMBER/assignees \
  -d '{"assignees":["hubot","other_user"]}'

Response

Status: 200

{
  "id": 1,
  "node_id": "MDU6SXNzdWUx",
  "url": "https://HOSTNAME/repos/octocat/Hello-World/issues/1347",
  "repository_url": "https://HOSTNAME/repos/octocat/Hello-World",
  "labels_url": "https://HOSTNAME/repos/octocat/Hello-World/issues/1347/labels{/name}",
  "comments_url": "https://HOSTNAME/repos/octocat/Hello-World/issues/1347/comments",
  "events_url": "https://HOSTNAME/repos/octocat/Hello-World/issues/1347/events",
  "html_url": "https://github.com/octocat/Hello-World/issues/1347",
  "number": 1347,
  "state": "open",
  "title": "Found a bug",
  "body": "I'm having a problem with this.",
  "user": {
    "login": "octocat",
    "id": 1,
    "node_id": "MDQ6VXNlcjE=",
    "avatar_url": "https://github.com/images/error/octocat_happy.gif",
    "gravatar_id": "",
    "url": "https://HOSTNAME/users/octocat",
    "html_url": "https://github.com/octocat",
    "followers_url": "https://HOSTNAME/users/octocat/followers",
    "following_url": "https://HOSTNAME/users/octocat/following{/other_user}",
    "gists_url": "https://HOSTNAME/users/octocat/gists{/gist_id}",
    "starred_url": "https://HOSTNAME/users/octocat/starred{/owner}{/repo}",
    "subscriptions_url": "https://HOSTNAME/users/octocat/subscriptions",
    "organizations_url": "https://HOSTNAME/users/octocat/orgs",
    "repos_url": "https://HOSTNAME/users/octocat/repos",
    "events_url": "https://HOSTNAME/users/octocat/events{/privacy}",
    "received_events_url": "https://HOSTNAME/users/octocat/received_events",
    "type": "User",
    "site_admin": false
  },
  "pinned_comment": null,
  "labels": [
    {
      "id": 208045946,
      "node_id": "MDU6TGFiZWwyMDgwNDU5NDY=",
      "url": "https://HOSTNAME/repos/octocat/Hello-World/labels/bug",
      "name": "bug",
      "description": "Something isn't working",
      "color": "f29513",
      "default": true
    }
  ],
  "assignees": [
    {
      "login": "octocat",
      "id": 1,
      "node_id": "MDQ6VXNlcjE=",
      "avatar_url": "https://github.com/images/error/octocat_happy.gif",
      "gravatar_id": "",
      "url": "https://HOSTNAME/users/octocat",
      "html_url": "https://github.com/octocat",
      "followers_url": "https://HOSTNAME/users/octocat/followers",
      "following_url": "https://HOSTNAME/users/octocat/following{/other_user}",
      "gists_url": "https://HOSTNAME/users/octocat/gists{/gist_id}",
      "starred_url": "https://HOSTNAME/users/octocat/starred{/owner}{/repo}",
      "subscriptions_url": "https://HOSTNAME/users/octocat/subscriptions",
      "organizations_url": "https://HOSTNAME/users/octocat/orgs",
      "repos_url": "https://HOSTNAME/users/octocat/repos",
      "events_url": "https://HOSTNAME/users/octocat/events{/privacy}",
      "received_events_url": "https://HOSTNAME/users/octocat/received_events",
      "type": "User",
      "site_admin": false
    }
  ],
  "milestone": {
    "url": "https://HOSTNAME/repos/octocat/Hello-World/milestones/1",
    "html_url": "https://github.com/octocat/Hello-World/milestones/v1.0",
    "labels_url": "https://HOSTNAME/repos/octocat/Hello-World/milestones/1/labels",
    "id": 1002604,
    "node_id": "MDk6TWlsZXN0b25lMTAwMjYwNA==",
    "number": 1,
    "state": "open",
    "title": "v1.0",
    "description": "Tracking milestone for version 1.0",
    "creator": {
      "login": "octocat",
      "id": 1,
      "node_id": "MDQ6VXNlcjE=",
      "avatar_url": "https://github.com/images/error/octocat_happy.gif",
      "gravatar_id": "",
      "url": "https://HOSTNAME/users/octocat",
      "html_url": "https://github.com/octocat",
      "followers_url": "https://HOSTNAME/users/octocat/followers",
      "following_url": "https://HOSTNAME/users/octocat/following{/other_user}",
      "gists_url": "https://HOSTNAME/users/octocat/gists{/gist_id}",
      "starred_url": "https://HOSTNAME/users/octocat/starred{/owner}{/repo}",
      "subscriptions_url": "https://HOSTNAME/users/octocat/subscriptions",
      "organizations_url": "https://HOSTNAME/users/octocat/orgs",
      "repos_url": "https://HOSTNAME/users/octocat/repos",
      "events_url": "https://HOSTNAME/users/octocat/events{/privacy}",
      "received_events_url": "https://HOSTNAME/users/octocat/received_events",
      "type": "User",
      "site_admin": false
    },
    "open_issues": 4,
    "closed_issues": 8,
    "created_at": "2011-04-10T20:09:31Z",
    "updated_at": "2014-03-03T18:58:10Z",
    "closed_at": "2013-02-12T13:22:01Z",
    "due_on": "2012-10-09T23:39:01Z"
  },
  "locked": true,
  "active_lock_reason": "too heated",
  "comments": 0,
  "pull_request": {
    "url": "https://HOSTNAME/repos/octocat/Hello-World/pulls/1347",
    "html_url": "https://github.com/octocat/Hello-World/pull/1347",
    "diff_url": "https://github.com/octocat/Hello-World/pull/1347.diff",
    "patch_url": "https://github.com/octocat/Hello-World/pull/1347.patch"
  },
  "closed_at": null,
  "created_at": "2011-04-22T13:33:48Z",
  "updated_at": "2011-04-22T13:33:48Z",
  "closed_by": {
    "login": "octocat",
    "id": 1,
    "node_id": "MDQ6VXNlcjE=",
    "avatar_url": "https://github.com/images/error/octocat_happy.gif",
    "gravatar_id": "",
    "url": "https://HOSTNAME/users/octocat",
    "html_url": "https://github.com/octocat",
    "followers_url": "https://HOSTNAME/users/octocat/followers",
    "following_url": "https://HOSTNAME/users/octocat/following{/other_user}",
    "gists_url": "https://HOSTNAME/users/octocat/gists{/gist_id}",
    "starred_url": "https://HOSTNAME/users/octocat/starred{/owner}{/repo}",
    "subscriptions_url": "https://HOSTNAME/users/octocat/subscriptions",
    "organizations_url": "https://HOSTNAME/users/octocat/orgs",
    "repos_url": "https://HOSTNAME/users/octocat/repos",
    "events_url": "https://HOSTNAME/users/octocat/events{/privacy}",
    "received_events_url": "https://HOSTNAME/users/octocat/received_events",
    "type": "User",
    "site_admin": false
  },
  "author_association": "COLLABORATOR",
  "state_reason": "completed"
}

Check if a user can be assigned to a issue

Checks if a user has permission to be assigned to a specific issue.

If the assignee can be assigned to this issue, a 204 status code with no content is returned.

Otherwise a 404 status code is returned.

Fine-grained access tokens for "Check if a user can be assigned to a issue"

This endpoint works with the following fine-grained token types:

The fine-grained token must have at least one of the following permission sets:

"Issues" repository permissions (read)
"Pull requests" repository permissions (read)

This endpoint can be used without authentication or the aforementioned permissions if only public resources are requested.

"Check if a user can be assigned to a issue" のパラメーター

ヘッダー
名前, タイプ, 説明
`accept` string Setting to `application/vnd.github+json` is recommended.

パスパラメーター
名前, タイプ, 説明
`owner` string 必須 The account owner of the repository. The name is not case sensitive.
`repo` string 必須 The name of the repository without the `.git` extension. The name is not case sensitive.
`issue_number` integer 必須 The number that identifies the issue.
`assignee` string 必須

HTTP response status codes for "Check if a user can be assigned to a issue"

Status code	説明
`204`	Response if `assignee` can be assigned to `issue_number`
`404`	Response if `assignee` can not be assigned to `issue_number`

Code samples for "Check if a user can be assigned to a issue"

Request example

get/repos/{owner}/{repo}/issues/{issue_number}/assignees/{assignee}

curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  http(s)://HOSTNAME/api/v3/repos/OWNER/REPO/issues/ISSUE_NUMBER/assignees/ASSIGNEE

Response if `assignee` can be assigned to `issue_number`

Status: 204

課題アサイン先の REST API のエンドポイント

Request example

Response

Request example

If the assignee can be assigned to issues in the repository, a 204 header with no content is returned.

Request example

Response

Request example

Response

Request example

Response if assignee can be assigned to issue_number

If the `assignee` can be assigned to issues in the repository, a `204` header with no content is returned.

Response if `assignee` can be assigned to `issue_number`