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# Feature Flag Specs API **(PREMIUM)**
> [Introduced](https://gitlab.com/gitlab-org/gitlab/issues/9566) in [GitLab Premium](https://about.gitlab.com/pricing/) 12.5.
The API for creating, updating, reading and deleting [Feature Flag Specs](../user/project/operations/feature_flags.md#define-environment-specs).
Automation engineers benefit from this API by being able to modify Feature Flag Specs without accessing user interface.
To manage the [Feature Flag](../user/project/operations/feature_flags.md) resources via public API, please refer to the [Feature Flags API](feature_flags.md) document.
Users with Developer or higher [permissions](../user/permissions.md) can access Feature Flag Specs API.
## List all effective feature flag specs under the specified environment
Get all effective feature flag specs under the specified [environment](../ci/environments.md).
For instance, there are two specs, `staging` and `production`, for a feature flag.
When you pass `production` as a parameter to this endpoint, the system returns
the `production` feature flag spec only.
```
GET /projects/:id/feature_flag_scopes
```
| Attribute | Type | Required | Description |
| ------------------- | ---------------- | ---------- | --------------------------------------------------------------------------------------------------------------------------- |
| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding). |
| `environment` | string | yes | The [environment](../ci/environments.md) name |
```bash
curl --header "PRIVATE-TOKEN: <your_access_token>" https://gitlab.example.com/api/v4/projects/1/feature_flag_scopes?environment=production
```
Example response:
```json
[
{
"id": 88,
"active": true,
"environment_scope": "production",
"strategies": [
{
"name": "userWithId",
"parameters": {
"userIds": "1,2,3"
}
}
],
"created_at": "2019-11-04T08:36:41.327Z",
"updated_at": "2019-11-04T08:36:41.327Z",
"name": "awesome_feature"
},
{
"id": 82,
"active": true,
"environment_scope": "*",
"strategies": [
{
"name": "default",
"parameters": {}
}
],
"created_at": "2019-11-04T08:13:51.425Z",
"updated_at": "2019-11-04T08:39:45.751Z",
"name": "merge_train"
},
{
"id": 81,
"active": false,
"environment_scope": "production",
"strategies": [
{
"name": "default",
"parameters": {}
}
],
"created_at": "2019-11-04T08:13:10.527Z",
"updated_at": "2019-11-04T08:13:10.527Z",
"name": "new_live_trace"
}
]
```
## List all specs of a feature flag
Get all specs of a feature flag.
```
GET /projects/:id/feature_flags/:name/scopes
```
| Attribute | Type | Required | Description |
| ------------------- | ---------------- | ---------- | --------------------------------------------------------------------------------------------------------------------------- |
| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding). |
| `name` | string | yes | The name of the feature flag. |
```bash
curl --header "PRIVATE-TOKEN: <your_access_token>" https://gitlab.example.com/api/v4/projects/1/feature_flags/new_live_trace/scopes
```
Example response:
```json
[
{
"id": 79,
"active": false,
"environment_scope": "*",
"strategies": [
{
"name": "default",
"parameters": {}
}
],
"created_at": "2019-11-04T08:13:10.516Z",
"updated_at": "2019-11-04T08:13:10.516Z"
},
{
"id": 80,
"active": true,
"environment_scope": "staging",
"strategies": [
{
"name": "default",
"parameters": {}
}
],
"created_at": "2019-11-04T08:13:10.525Z",
"updated_at": "2019-11-04T08:13:10.525Z"
},
{
"id": 81,
"active": false,
"environment_scope": "production",
"strategies": [
{
"name": "default",
"parameters": {}
}
],
"created_at": "2019-11-04T08:13:10.527Z",
"updated_at": "2019-11-04T08:13:10.527Z"
}
]
```
## New feature flag spec
Creates a new feature flag spec.
```
POST /projects/:id/feature_flags/:name/scopes
```
| Attribute | Type | Required | Description |
| ------------------- | ---------------- | ---------- | --------------------------------------------------------------------------------------------------------------------------- |
| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding). |
| `name` | string | yes | The name of the feature flag. |
| `environment_scope` | string | yes | The [environment spec](../ci/environments.md#scoping-environments-with-specs) of the feature flag. |
| `active` | boolean | yes | Whether the spec is active. |
| `strategies` | json | yes | The [strategies](../user/project/operations/feature_flags.md#feature-flag-strategies) of the feature flag spec. |
```bash
curl https://gitlab.example.com/api/v4/projects/1/feature_flags/new_live_trace/scopes \
--header "PRIVATE-TOKEN: <your_access_token>" \
--header "Content-type: application/json" \
--data @- << EOF
{
"environment_scope": "*",
"active": false,
"strategies": [{ "name": "default", "parameters": {} }]
}
EOF
```
Example response:
```json
{
"id": 81,
"active": false,
"environment_scope": "*",
"strategies": [
{
"name": "default",
"parameters": {}
}
],
"created_at": "2019-11-04T08:13:10.527Z",
"updated_at": "2019-11-04T08:13:10.527Z"
}
```
## Single feature flag spec
Gets a single feature flag spec.
```
GET /projects/:id/feature_flags/:name/scopes/:environment_scope
```
| Attribute | Type | Required | Description |
| ------------------- | ---------------- | ---------- | ---------------------------------------------------------------------------------------|
| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding). |
| `name` | string | yes | The name of the feature flag. |
| `environment_scope` | string | yes | The URL-encoded [environment spec](../ci/environments.md#scoping-environments-with-specs) of the feature flag. |
```bash
curl --header "PRIVATE-TOKEN: <your_access_token>" https://gitlab.example.com/api/v4/projects/:id/feature_flags/new_live_trace/scopes/production
```
Example response:
```json
{
"id": 81,
"active": false,
"environment_scope": "production",
"strategies": [
{
"name": "default",
"parameters": {}
}
],
"created_at": "2019-11-04T08:13:10.527Z",
"updated_at": "2019-11-04T08:13:10.527Z"
}
```
## Edit feature flag spec
Updates an existing feature flag spec.
```
PUT /projects/:id/feature_flags/:name/scopes/:environment_scope
```
| Attribute | Type | Required | Description |
| ------------------- | ---------------- | ---------- | --------------------------------------------------------------------------------------------------------------------------- |
| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding). |
| `name` | string | yes | The name of the feature flag. |
| `environment_scope` | string | yes | The URL-encoded [environment spec](../ci/environments.md#scoping-environments-with-specs) of the feature flag. |
| `active` | boolean | yes | Whether the spec is active. |
| `strategies` | json | yes | The [strategies](../user/project/operations/feature_flags.md#feature-flag-strategies) of the feature flag spec. |
```bash
curl https://gitlab.example.com/api/v4/projects/1/feature_flags/new_live_trace/scopes/production \
--header "PRIVATE-TOKEN: <your_access_token>" \
--header "Content-type: application/json" \
--data @- << EOF
{
"active": true,
"strategies": [{ "name": "userWithId", "parameters": { "userIds": "1,2,3" } }]
}
EOF
```
Example response:
```json
{
"id": 81,
"active": true,
"environment_scope": "production",
"strategies": [
{
"name": "userWithId",
"parameters": { "userIds": "1,2,3" }
}
],
"created_at": "2019-11-04T08:13:10.527Z",
"updated_at": "2019-11-04T08:13:10.527Z"
}
```
## Delete feature flag spec
Deletes a feature flag spec.
```
DELETE /projects/:id/feature_flags/:name/scopes/:environment_scope
```
| Attribute | Type | Required | Description |
| ------------------- | ---------------- | ---------- | ---------------------------------------------------------------------------------------|
| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding). |
| `name` | string | yes | The name of the feature flag. |
| `environment_scope` | string | yes | The URL-encoded [environment spec](../ci/environments.md#scoping-environments-with-specs) of the feature flag. |
```bash
curl --header "PRIVATE-TOKEN: <your_access_token>" --request DELETE https://gitlab.example.com/api/v4/projects/1/feature_flags/new_live_trace/scopes/production
```
|
