unleash.unleash/website/docs/reference/api/legacy/unleash/admin/features.md

title
/api/admin/features

:::caution Deprecation notice

Most of this API was removed in Unleash v5 (after being deprecated since Unleash v4.3). You should use the project-based API (/api/admin/projects/:projectId) instead.

:::

:::info In order to access the admin API endpoints you need to identify yourself. Unless you're using the none authentication method, you'll need to create an admin token and add an Authorization header using the token. :::

Fetching Feature Flags

:::caution Deprecation notice

This endpoint was removed in Unleash v5. Please use the project-based endpoint to fetch all flags instead.

:::

GET: http://unleash.host.com/api/admin/features

This endpoint is the one all admin ui should use to fetch all available feature flags from the unleash-server. The response returns all active feature flags and their current strategy configuration. A feature flag will have at least one configured strategy. A strategy will have a name and parameters map.

Example response:

{
  "version": 2,
  "features": [
    {
      "name": "Feature.A",
      "description": "lorem ipsum",
      "type": "release",
      "enabled": false,
      "stale": false,
      "strategies": [
        {
          "name": "default",
          "parameters": {}
        }
      ],
      "variants": [
        {
          "name": "variant1",
          "weight": 50
        },
        {
          "name": "variant2",
          "weight": 50
        }
      ],
      "tags": [
        {
          "id": 1,
          "type": "simple",
          "value": "TeamRed"
        }
      ]
    },
    {
      "name": "Feature.B",
      "description": "lorem ipsum",
      "enabled": true,
      "stale": false,
      "strategies": [
        {
          "name": "ActiveForUserWithId",
          "parameters": {
            "userIdList": "123,221,998"
          }
        },
        {
          "name": "GradualRolloutRandom",
          "parameters": {
            "percentage": "10"
          }
        }
      ],
      "variants": [],
      "tags": []
    }
  ]
}

Filter feature flags

Supports three params for now

• tag - filters for features tagged with tag
• project - filters for features belonging to project
• namePrefix - filters for features beginning with prefix

For tag and project performs OR filtering if multiple arguments

To filter for any feature tagged with a simple tag with value taga or a simple tag with value tagb use

GET https://unleash.host.com/api/admin/features?tag[]=simple:taga&tag[]simple:tagb

To filter for any feature belonging to project myproject use

GET https://unleash.host.com/api/admin/features?project=myproject

Response format is the same as api/admin/features

Fetch specific feature flag

:::caution Removal notice

This endpoint was removed in Unleash v5 (deprecated since v4). Please use the project-based endpoint to fetch specific flags instead.

:::

GET: http://unleash.host.com/api/admin/features/:featureName

Used to fetch details about a specific featureToggle. This is mostly provded to make it easy to debug the API and should not be used by the client implementations.

{
  "name": "Feature.A",
  "description": "lorem ipsum..",
  "type": "release",
  "enabled": false,
  "stale": false,
  "strategies": [
    {
      "name": "default",
      "parameters": {}
    }
  ],
  "variants": [],
  "tags": []
}

Create a new Feature Flag

:::caution Removal notice

This endpoint was removed in Unleash v5 (deprecated since v4). Please use the project-based endpoint to create feature flags instead.

:::

POST: http://unleash.host.com/api/admin/features/

Body:

{
  "name": "Feature.A",
  "description": "lorem ipsum..",
  "type": "release",
  "enabled": false,
  "stale": false,
  "strategies": [
    {
      "name": "default",
      "parameters": {}
    }
  ]
}

Used by the admin-dashboard to create a new feature flags.

Notes:

• name must be globally unique, otherwise you will get a 403-response.
• type is optional. If not defined it defaults to release

Returns 200-response if the feature flag was created successfully.

Update a Feature Flag

:::caution Removal notice This endpoint was removed in Unleash v5. Please use the project-based endpoint to update a feature flag instead. :::

PUT: http://unleash.host.com/api/admin/features/:toggleName

Body:

{
  "name": "Feature.A",
  "description": "lorem ipsum..",
  "type": "release",
  "enabled": false,
  "stale": false,
  "strategies": [
    {
      "name": "default",
      "parameters": {}
    }
  ],
  "variants": []
}

Used by the admin dashboard to update a feature flags. The name has to match an existing features flag.

Returns 200-response if the feature flag was updated successfully.

Tag a Feature Flag

POST https://unleash.host.com/api/admin/features/:featureName/tags

Used to tag a feature

If the tuple (type, value) does not already exist, it will be added to the list of tags. Then Unleash will add a relation between the feature name and the tag.

Body:

{
  "type": "simple",
  "value": "Team-Green"
}

Success

- Returns _201-CREATED_ if the feature was tagged successfully
- Creates the tag if needed, then connects the tag to the existing feature

Failures

- Returns _404-NOT-FOUND_ if the `type` was not found

Remove a tag from a Feature Flag

DELETE https://unleash.host.com/api/admin/features/:featureName/tags/:type/:value

Removes the specified tag from the (type, value) tuple from the Feature Flag's list of tags.

Success

- Returns _200-OK_

Failures

- Returns 404 if the tag does not exist
- Returns 500 if the database could not be reached

Archive a Feature Flag

:::caution Removal notice This endpoint was removed in v5. Please use the project-based endpoint to archive flags instead. :::

DELETE: http://unleash.host.com/api/admin/features/:toggleName

Used to archive a feature flag. A feature flag can never be totally be deleted, but can be archived. This is a design decision to make sure that a old feature flag does not suddenly reappear because someone else is re-using the same name.

Enable a Feature Flag

:::caution Removal notice This endpoint was removed in v5. Please use the project-based endpoint to enable feature flags instead. :::

POST: http://unleash.host.com/api/admin/features/:featureName/toggle/on

Used to enable a feature flag. The :featureName must match an existing Feature Flag. Returns 200-response if the feature flag was enabled successfully.

Body

None

Example response:

{
  "name": "Feature.A",
  "description": "lorem ipsum..",
  "type": "release",
  "enabled": true,
  "strategies": [
    {
      "name": "default",
      "parameters": {}
    }
  ],
  "variants": [],
  "tags": []
}

Disable a Feature Flag

:::caution Removal notice This endpoint was removed in v5. Please use the project-based endpoint to disable feature flags instead. :::

POST: http://unleash.host.com/api/admin/features/:featureName/toggle/off

Used to disable a feature flag. The :featureName must match an existing Feature Flag. Returns 200-response if the feature flag was disabled successfully.

Body

None

Example response:

{
  "name": "Feature.A",
  "description": "lorem ipsum..",
  "type": "release",
  "enabled": false,
  "stale": false,
  "strategies": [
    {
      "name": "default",
      "parameters": {}
    }
  ],
  "variants": [],
  "tags": []
}

Mark a Feature Flag as "stale"

:::caution Removal notice This endpoint was removed in v5. Please use the project-based endpoint to patch a feature flag and mark it as stale instead. :::

POST: http://unleash.host.com/api/admin/features/:featureName/stale/on

Used to mark a feature flag as stale (deprecated). The :featureName must match an existing Feature Flag. Returns 200-response if the feature flag was enabled successfully.

Body

None

Example response:

{
  "name": "Feature.A",
  "description": "lorem ipsum..",
  "type": "release",
  "enabled": true,
  "stale": true,
  "strategies": [
    {
      "name": "default",
      "parameters": {}
    }
  ],
  "variants": [],
  "tags": []
}

Mark a Feature Flag as "active"

:::caution Removal notice This endpoint was removed in v5. Please use the project-based endpoint to patch a feature flag and mark it as not stale instead. :::

POST: http://unleash.host.com/api/admin/features/:featureName/stale/off

Used to mark a feature flag active (remove stale marking). The :featureName must match an existing Feature Flag. Returns 200-response if the feature flag was disabled successfully.

Body

None

Example response:

{
  "name": "Feature.A",
  "description": "lorem ipsum..",
  "type": "release",
  "enabled": false,
  "stale": false,
  "strategies": [
    {
      "name": "default",
      "parameters": {}
    }
  ],
  "variants": [],
  "tags": []
}