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---
stage: Plan
group: Project Management
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info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
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---
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# Project milestones API **(FREE)**
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Use project [milestones ](../user/project/milestones/index.md ) with the REST API.
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There's a separate [group milestones API ](group_milestones.md ) page.
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## List project milestones
Returns a list of project milestones.
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```plaintext
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GET /projects/:id/milestones
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GET /projects/:id/milestones?iids[]=42
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GET /projects/:id/milestones?iids[]=42& iids[]=43
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GET /projects/:id/milestones?state=active
GET /projects/:id/milestones?state=closed
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GET /projects/:id/milestones?title=1.0
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GET /projects/:id/milestones?search=version
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```
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Parameters:
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| Attribute | Type | Required | Description |
| ---------------------------- | ------ | -------- | ----------- |
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| `id` | integer or string | yes | The ID or [URL-encoded path of the project ](index.md#namespaced-path-encoding ) owned by the authenticated user |
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| `iids[]` | integer array | optional | Return only the milestones having the given `iid` (Note: ignored if `include_parent_milestones` is set as `true` ) |
| `state` | string | optional | Return only `active` or `closed` milestones |
| `title` | string | optional | Return only the milestones having the given `title` |
| `search` | string | optional | Return only milestones with a title or description matching the provided string |
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| `include_parent_milestones` | boolean | optional | Include group milestones from parent group and its ancestors. [Introduced ](https://gitlab.com/gitlab-org/gitlab/-/issues/196066 ) in GitLab 13.4 |
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```shell
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curl --header "PRIVATE-TOKEN: < your_access_token > " "https://gitlab.example.com/api/v4/projects/5/milestones"
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```
Example Response:
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```json
[
{
"id": 12,
"iid": 3,
"project_id": 16,
"title": "10.0",
"description": "Version",
"due_date": "2013-11-29",
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"start_date": "2013-11-10",
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"state": "active",
"updated_at": "2013-10-02T09:24:18Z",
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"created_at": "2013-10-02T09:24:18Z",
"expired": false
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}
]
```
## Get single milestone
Gets a single project milestone.
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```plaintext
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GET /projects/:id/milestones/:milestone_id
```
Parameters:
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| Attribute | Type | Required | Description |
|----------------|----------------|----------|-----------------------------------------------------------------------------------------------------------------|
| `id` | integer or string | yes | The ID or [URL-encoded path of the project ](index.md#namespaced-path-encoding ) owned by the authenticated user |
| `milestone_id` | integer | yes | The ID of the project's milestone |
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## Create new milestone
Creates a new project milestone.
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```plaintext
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POST /projects/:id/milestones
```
Parameters:
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| Attribute | Type | Required | Description |
|---------------|----------------|----------|-----------------------------------------------------------------------------------------------------------------|
| `id` | integer or string | yes | The ID or [URL-encoded path of the project ](index.md#namespaced-path-encoding ) owned by the authenticated user |
| `title` | string | yes | The title of a milestone |
| `description` | string | no | The description of the milestone |
| `due_date` | string | no | The due date of the milestone |
| `start_date` | string | no | The start date of the milestone |
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## Edit milestone
Updates an existing project milestone.
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```plaintext
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PUT /projects/:id/milestones/:milestone_id
```
Parameters:
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| Attribute | Type | Required | Description |
|----------------|----------------|----------|-----------------------------------------------------------------------------------------------------------------|
| `id` | integer or string | yes | The ID or [URL-encoded path of the project ](index.md#namespaced-path-encoding ) owned by the authenticated user |
| `milestone_id` | integer | yes | The ID of the project's milestone |
| `title` | string | no | The title of a milestone |
| `description` | string | no | The description of the milestone |
| `due_date` | string | no | The due date of the milestone |
| `start_date` | string | no | The start date of the milestone |
| `state_event` | string | no | The state event of the milestone (close or activate) |
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## Delete project milestone
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Only for users with the Developer role in the project.
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```plaintext
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DELETE /projects/:id/milestones/:milestone_id
```
Parameters:
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| Attribute | Type | Required | Description |
|----------------|----------------|----------|-----------------------------------------------------------------------------------------------------------------|
| `id` | integer or string | yes | The ID or [URL-encoded path of the project ](index.md#namespaced-path-encoding ) owned by the authenticated user |
| `milestone_id` | integer | yes | The ID of the project's milestone |
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## Get all issues assigned to a single milestone
Gets all issues assigned to a single project milestone.
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```plaintext
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GET /projects/:id/milestones/:milestone_id/issues
```
Parameters:
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| Attribute | Type | Required | Description |
|----------------|----------------|----------|-----------------------------------------------------------------------------------------------------------------|
| `id` | integer or string | yes | The ID or [URL-encoded path of the project ](index.md#namespaced-path-encoding ) owned by the authenticated user |
| `milestone_id` | integer | yes | The ID of the project's milestone |
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## Get all merge requests assigned to a single milestone
Gets all merge requests assigned to a single project milestone.
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```plaintext
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GET /projects/:id/milestones/:milestone_id/merge_requests
```
Parameters:
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| Attribute | Type | Required | Description |
|----------------|----------------|----------|-----------------------------------------------------------------------------------------------------------------|
| `id` | integer or string | yes | The ID or [URL-encoded path of the project ](index.md#namespaced-path-encoding ) owned by the authenticated user |
| `milestone_id` | integer | yes | The ID of the project's milestone |
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## Promote project milestone to a group milestone
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> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/issues/53861) in GitLab 11.9
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Only for users with the Developer role in the group.
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```plaintext
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POST /projects/:id/milestones/:milestone_id/promote
```
Parameters:
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| Attribute | Type | Required | Description |
|----------------|----------------|----------|-----------------------------------------------------------------------------------------------------------------|
| `id` | integer or string | yes | The ID or [URL-encoded path of the project ](index.md#namespaced-path-encoding ) owned by the authenticated user |
| `milestone_id` | integer | yes | The ID of the project's milestone |
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## Get all burndown chart events for a single milestone **(PREMIUM)**
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> - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/4737) in GitLab 12.1
> - Moved to GitLab Premium in 13.9.
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Gets all burndown chart events for a single milestone.
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```plaintext
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GET /projects/:id/milestones/:milestone_id/burndown_events
```
Parameters:
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| Attribute | Type | Required | Description |
|----------------|----------------|----------|-----------------------------------------------------------------------------------------------------------------|
| `id` | integer or string | yes | The ID or [URL-encoded path of the project ](index.md#namespaced-path-encoding ) owned by the authenticated user |
| `milestone_id` | integer | yes | The ID of the project's milestone |
