unleash.unleash/website/docs/reference/api/legacy/unleash/admin/features-v2.md

title
/api/admin/projects/:projectId

import ApiRequest from '@site/src/components/ApiRequest'

:::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

Available since Unleash v4.3

In this document we will guide you on how you can work with feature flags and their configuration. Please remember the following details:

• All feature flags exists inside a project.
• A feature flag exists across all environments.
• A feature flag can take different configuration, activation strategies, per environment.

:::note This document lists HTTP request data and cURL and HTTPie command examples for all endpoints. Further examples use HTTPie. :::

Get Project Overview

This endpoint will give you an general overview of a project. It will return essential details about a project, in addition it will return all feature flags and high level environment details per feature flag.

Example Query

http GET http://localhost:4242/api/admin/projects/default Authorization:$KEY

Example response:

{
  "description": "Default project",
  "features": [
    {
      "createdAt": "2021-08-31T08:00:33.335Z",
      "environments": [
        {
          "displayName": "Development",
          "enabled": false,
          "name": "development"
        },
        {
          "displayName": "Production",
          "enabled": false,
          "name": "production"
        }
      ],
      "lastSeenAt": null,
      "name": "demo",
      "stale": false,
      "type": "release"
    },
    {
      "createdAt": "2021-08-31T09:43:13.686Z",
      "environments": [
        {
          "displayName": "Development",
          "enabled": false,
          "name": "development"
        },
        {
          "displayName": "Production",
          "enabled": false,
          "name": "production"
        }
      ],
      "lastSeenAt": null,
      "name": "demo.test",
      "stale": false,
      "type": "release"
    }
  ],
  "health": 100,
  "members": 2,
  "name": "Default",
  "version": 1
}

From the results we can see that we have received two feature flags, demo, demo.test, and other useful metadata about the project.

Get All Feature Flags

This endpoint will return all feature flags and high level environment details per feature flag for a given projectId

Example Query

http GET http://localhost:4242/api/admin/projects/default/features \
Authorization:$KEY

Example response:

{
  "features": [
    {
      "createdAt": "2021-08-31T08:00:33.335Z",
      "environments": [
        {
          "displayName": "Development",
          "enabled": false,
          "name": "development"
        },
        {
          "displayName": "Production",
          "enabled": false,
          "name": "production"
        }
      ],
      "lastSeenAt": null,
      "name": "demo",
      "stale": false,
      "type": "release"
    },
    {
      "createdAt": "2021-08-31T09:43:13.686Z",
      "environments": [
        {
          "displayName": "Development",
          "enabled": false,
          "name": "development"
        },
        {
          "displayName": "Production",
          "enabled": false,
          "name": "production"
        }
      ],
      "lastSeenAt": null,
      "name": "demo.test",
      "stale": false,
      "type": "release"
    }
  ],
  "version": 1
}

Create Feature Flag

<ApiRequest verb="post" url="api/admin/projects/:projectId/features" title="Create a feature flag with the specified details (example data)" payload={{ name: "my-feature-flag" }}/>

This endpoint will accept HTTP POST request to create a new feature flag for a given projectId

Flag options

This endpoint accepts the following flag options:

Property name	Required	Description	Example value
name	Yes	The name of the feature flag.	"my-feature-flag"
description	No	The feature flag's description. Defaults to an empty string.	"Turn my feature on!"
impressionData	No	Whether to enable impression data for this flag. Defaults to false.	true
type	No	The type of flag you want to create. Defaults to "release"	"release"

Example Query

echo '{"name": "demo2", "description": "A new feature flag"}' | \
http POST http://localhost:4242/api/admin/projects/default/features \
Authorization:$KEY`

Example response:

HTTP/1.1 201 Created
Access-Control-Allow-Origin: *
Connection: keep-alive
Content-Length: 159
Content-Type: application/json; charset=utf-8
Date: Tue, 07 Sep 2021 20:16:02 GMT
ETag: W/"9f-4btEokgk0N74zuBVKKxws0IBu4w"
Keep-Alive: timeout=60
Vary: Accept-Encoding

{
    "createdAt": "2021-09-07T20:16:02.614Z",
    "description": "A new feature flag",
    "lastSeenAt": null,
    "name": "demo2",
    "project": "default",
    "stale": false,
    "type": "release",
    "variants": null
}

Possible Errors:

• 409 Conflict - A flag with that name already exists

Get Feature Flag

This endpoint will return the feature flags with the defined name and projectId. We will also see the list of environments and all activation strategies configured per environment.

Example Query

http GET http://localhost:4242/api/admin/projects/default/features/demo \
Authorization:$KEY`

Example response:

{
    "archived": false,
    "createdAt": "2021-08-31T08:00:33.335Z",
    "description": null,
    "environments": [
        {
            "enabled": false,
            "name": "development",
            "strategies": [
                {
                    "constraints": [],
                    "id": "8eaa8abb-0e03-4dbb-a440-f3bf193917ad",
                    "name": "default",
                    "parameters": null
                }
            ]
        },
        {
            "enabled": false,
            "name": "production",
            "strategies": []
        }
    ],
    "lastSeenAt": null,
    "name": "demo",
    "project": "default",
    "stale": false,
    "type": "release",
    "variants": null
}

Possible Errors:

• 404 Not Found - Could not find feature flag with the provided name.

Update Feature Flag

<ApiRequest verb="put" url="api/admin/projects/:projectId/features/:featureName" title="Update a feature flag entry (example data)" payload={{ name: "demo", description: "An updated feature flag description." }}/>

This endpoint will accept HTTP PUT request to update the feature flag metadata.

Example Query

echo '{"name": "demo", "description": "An update feature flag", "type": "kill-switch"}' | \
http PUT http://localhost:4242/api/admin/projects/default/features/demo \
Authorization:$KEY`

Example response:

{
    "createdAt": "2021-09-07T20:16:02.614Z",
    "description": "An update feature flag",
    "lastSeenAt": null,
    "name": "demo",
    "project": "default",
    "stale": false,
    "type": "kill-switch",
    "variants": null
}

Some fields is not possible to change via this endpoint:

• name
• project
• createdAt
• lastSeen

Patch Feature Flag

<ApiRequest verb="patch" url="api/admin/projects/:projectId/features/:featureName" title="Patch a feature flag (example data)" payload={[{op: "replace", path: "/description", value: "patched description"}]}/>

This endpoint will accept HTTP PATCH request to update the feature flag metadata.

Example Query

echo '[{"op": "replace", "path": "/description", "value": "patched desc"}]' | \
http PATCH http://localhost:4242/api/admin/projects/default/features/demo \
Authorization:$KEY`

Example response:

{
    "createdAt": "2021-09-07T20:16:02.614Z",
    "description": "patched desc",
    "lastSeenAt": null,
    "name": "demo",
    "project": "default",
    "stale": false,
    "type": "release",
    "variants": null
}

Some fields is not possible to change via this endpoint:

• name
• project
• createdAt
• lastSeen

Clone Feature Flag

<ApiRequest verb="post" url="api/admin/projects/:projectId/features/:featureName/clone" title="Clone a feature flag (example data)" payload={{ name: "newFlagName"}}/>

This endpoint will accept HTTP POST request to clone an existing feature flag with all strategies and variants. When cloning a flag, you must provide a new name for it. You can not clone archived feature flags. The newly created feature flag will be disabled for all environments.

Example Query

echo '{ "name": "DemoNew" }' | \
http POST http://localhost:4242/api/admin/projects/default/features/Demo/clone \
Authorization:$KEY`

Example response:

HTTP/1.1 201 Created
Access-Control-Allow-Origin: *
Connection: keep-alive
Content-Length: 260
Content-Type: application/json; charset=utf-8
Date: Wed, 06 Oct 2021 20:04:39 GMT
ETag: W/"104-joC/gdjtJ29jZMxj91lIzR42Pmo"
Keep-Alive: timeout=60
Vary: Accept-Encoding

{
    "createdAt": "2021-09-29T10:22:28.523Z",
    "description": "Some useful description",
    "lastSeenAt": null,
    "name": "DemoNew",
    "project": "default",
    "stale": false,
    "type": "release",
    "variants": [
        {
            "name": "blue",
            "overrides": [],
            "stickiness": "default",
            "weight": 1000,
            "weightType": "variable"
        }
    ]
}

Possible Errors:

• 409 Conflict - A flag with that name already exists

Archive Feature Flag

This endpoint will accept HTTP DELETE requests to archive a feature flag.

Example Query

http DELETE http://localhost:4242/api/admin/projects/default/features/demo \
Authorization:$KEY`

Example response:

HTTP/1.1 202 Accepted
Access-Control-Allow-Origin: *
Connection: keep-alive
Date: Wed, 08 Sep 2021 20:09:21 GMT
Keep-Alive: timeout=60
Transfer-Encoding: chunked

Add strategy to Feature Flag

<ApiRequest verb="post" url="api/admin/projects/:projectId/features/:featureName/environments/:environment/strategies" title="Add a new strategy to the named feature flag in the named environment (example data)" payload={{name: "flexibleRollout", parameters: { rollout: 20, groupId: "demo", stickiness: "default" } }}/>

This endpoint will allow you to add a new strategy to a feature flag in a given environment.

Example Query

echo '{"name": "flexibleRollout",
        "parameters": {
            "rollout": 20,
            "groupId": "demo",
            "stickiness": "default"
          }
      }' | \
http POST \
http://localhost:4242/api/admin/projects/default/features/demo/environments/production/strategies \
Authorization:$KEY

Example response:

{
    "constraints": [],
    "id": "77bbe972-ffce-49b2-94d9-326593e2228e",
    "name": "flexibleRollout",
    "parameters": {
        "groupId": "demo",
        "rollout": 20,
        "stickiness": "default"
    }
}

Update strategy configuration

<ApiRequest verb="put" url="api/admin/projects/:projectId/features/:featureName/environments/:environment/strategies/:strategy-id" title="Overwrite the specified strategy on the named feature flag in the named environment (example data)" payload={{name: "flexibleRollout", parameters: { rollout: 25, groupId: "demo", stickiness: "default" } }}/>

Example Query

echo '{"name": "flexibleRollout",
        "parameters": {
          "rollout": 25,
          "groupId": "demo",
          "stickiness": "default"
        }
      }' | \
http PUT \
http://localhost:4242/api/admin/projects/default/features/demo/environments/production/strategies/77bbe972-ffce-49b2-94d9-326593e2228e \
Authorization:$KEY

Example response:

{
    "constraints": [],
    "id": "77bbe972-ffce-49b2-94d9-326593e2228e",
    "name": "flexibleRollout",
    "parameters": {
        "groupId": "demo",
        "rollout": 20,
        "stickiness": "default"
    }
}

Patch strategy configuration

<ApiRequest verb="patch" url="api/admin/projects/:project-id/features/:featureName/environments/:environment/strategies/:strategyId" title="Patch update a strategy definition (example data)" payload={[{"op": "replace", "path": "/parameters/rollout", "value": 50}]}/>

Example Query

echo '[{"op": "replace", "path": "/parameters/rollout", "value": 50}]' | \
http PATCH \
http://localhost:4242/api/admin/projects/default/features/demo/environments/production/strategies/ea5404e5-0c0d-488c-93b2-0a2200534827 \
Authorization:$KEY

Example response:

{
    "constraints": [],
    "id": "ea5404e5-0c0d-488c-93b2-0a2200534827",
    "name": "flexibleRollout",
    "parameters": {
        "groupId": "demo",
        "rollout": 50,
        "stickiness": "default"
    }
}

Delete strategy from Feature Flag

Example Query

http DELETE http://localhost:4242/api/admin/projects/default/features/demo/environments/production/strategies/77bbe972-ffce-49b2-94d9-326593e2228e Authorization:$KEY

Example response:

HTTP/1.1 200 OK
Access-Control-Allow-Origin: *
Connection: keep-alive
Content-Type: application/json; charset=utf-8
Date: Tue, 07 Sep 2021 20:47:55 GMT
Keep-Alive: timeout=60
Transfer-Encoding: chunked
Vary: Accept-Encoding

Enabling and disabling flags

Enable Feature Flag in an Environment

Example Query

http POST http://localhost:4242/api/admin/projects/default/features/demo/environments/development/on Authorization:$KEY --json

Example response:

HTTP/1.1 200 OK
Access-Control-Allow-Origin: *
Connection: keep-alive
Date: Tue, 07 Sep 2021 20:49:51 GMT
Keep-Alive: timeout=60
Transfer-Encoding: chunked

Possible Errors:

• 409 Conflict - You can not enable the environment before it has strategies.

Disable Feature Flag in an Environment

Example Query

http POST http://localhost:4242/api/admin/projects/default/features/demo/environments/development/off Authorization:$KEY --json

Example response:

HTTP/1.1 200 OK
Access-Control-Allow-Origin: *
Connection: keep-alive
Date: Tue, 07 Sep 2021 20:49:51 GMT
Keep-Alive: timeout=60
Transfer-Encoding: chunked

Feature Variants

Put variants for Feature Flag

:::caution

From 4.21 variants are tied to an environment. Check our Open API docs for the up-to-date docs: https://docs.getunleash.io/reference/api/unleash/features

This endpoint affects all environments at once. If you only want to update a single environment, use #update-variants-per-environment instead.

:::

<ApiRequest verb="put" url="api/admin/projects/:projectId/features/:featureName/variants" title="Create (overwrite) variants for a feature flag in all environments (example data)" payload={[ { "name": "variant1", "weightType": "fix", "weight": 650, "payload": { "type": "json", "value": "{"key1": "value", "key2": 123}" }, "stickiness": "userId", "overrides": [ { "contextName": "userId", "values": ["1", "23"] } ] }, { "name": "variant2", "weightType": "variable", "weight": 123 } ]}/>

This overwrites the current variants for the feature flag specified in the :featureName parameter. The backend will validate the input for the following invariants

• If there are variants, there needs to be at least one variant with weightType: variable
• The sum of the weights of variants with weightType: fix must be below 1000 (< 1000)

The backend will also distribute remaining weight up to 1000 after adding the variants with weightType: fix together amongst the variants of weightType: variable

Example Query

echo '[
	{
		"name": "variant1",
		"weightType": "fix",
		"weight": 650,
        "payload": {
          "type": "json",
          "value": "{\"key1\": \"value\", \"key2\": 123}"
        },
        "stickiness": "userId",
        "overrides": [{
          "contextName": "userId",
          "values": ["1", "23"]
        }]
	},
	{
		"name": "variant2",
		"weightType": "variable",
		"weight": 123
	}
]' | \
http PUT http://localhost:4242/api/admin/projects/default/features/demo/variants Authorization:$KEY

Example response:

HTTP/1.1 200 OK
Access-Control-Allow-Origin: *
Connection: keep-alive
Date: Tue, 23 Nov 2021 08:46:32 GMT
Keep-Alive: timeout=60
Transfer-Encoding: chunked
Content-Type: application/json; charset=utf-8

{
  "version": "1",
  "variants": [
    {
      "name": "variant2",
      "weightType": "variable",
      "weight": 350
    },
    {
      "name": "variant1",
      "weightType": "fix",
      "weight": 650
    }
  ]
}

PATCH variants for a feature flag

:::caution

This API documentation is no longer maintained. You should use the OpenAPI docs for this endpoint instead.

This endpoint affects all environments at once. If you only want to update a single environment, use the operation for updating variants per enviroment instead.

:::

<ApiRequest verb="patch" url="api/admin/projects/:projectId/features/:featureName/variants" title="Patch variants for a feature flag in all environments (example data)" payload={[{"op": "add", "path": "/1", "value": { "name": "new-variant", "weightType": "fix", "weight": 200 }}]}/>

Example Query

echo '[{"op": "add", "path": "/1", "value": {
  "name": "new-variant",
  "weightType": "fix",
  "weight": 200
}}]' | \
http PATCH \
http://localhost:4242/api/admin/projects/default/features/demo/variants \
Authorization:$KEY

** Example Response **

{
  "version": "1",
  "variants": [
    {
      "name": "variant2",
      "weightType": "variable",
      "weight": 150
    },
    {
      "name": "new-variant",
      "weightType": "fix",
      "weight": 200
    },
    {
      "name": "variant1",
      "weightType": "fix",
      "weight": 650
    }
  ]
}

Manage project users and roles

You can add and remove users to a project using the /api/admin/projects/:projectId/users/:userId/roles/:roleId endpoint. When adding or removing users, you must also provide the ID for the role to give them (when adding) or the ID of the role they currently have (when removing).

Add a user to a project

<ApiRequest verb="POST" url="api/admin/projects/:projectId/users/:userId/roles/:roleId" title="Add a user to a project (example data)" payload={{ userId: 25, projectId: "myProject", roleId: "1" }}/>

This will add a user to a project and give the user a specified role within that project.

URL parameters

Parameter	Type	Description	Example value
userId	integer	The ID of the user you want to add to the project.	1
projectId	string	The id of the project to add the user to.	"MyCoolProject"
roleId	integer	The id of the role you want to assign to the new user in the project.	7

Responses

Responses data

200 OK

The user was added to the project with the specified role. This response has no body.

400 Bad Request

The user already exists in the project and cannot be added again:

[
  {
    "msg": "User already has access to project=<projectId>"
  }
]

Example query

The following query would add the user with ID 42 to the MyCoolProject project and give them the role with ID 13.

http POST \
http://localhost:4242/api/admin/projects/MyCoolProject/users/42/roles/13 \
Authorization:$KEY

Change a user's role in a project

<ApiRequest verb="PUT" url="api/admin/projects/:projectId/users/:userId/roles/:roleId" title="Update a user's role in a project" payload={{ userId: 25, projectId: "myProject", roleId: "3" }}/>

This will change the user's project role to the role specified by :roleId. If the user has not been added to the project, nothing happens.

URL parameters

Parameter	Type	Description	Example value
userId	integer	The ID of the user whose role you want to update.	1
projectId	string	The id of the relevant project.	"MyCoolProject"
roleId	integer	The role ID of the role you wish to assign the user.	7

Responses

Responses data

200 OK

The user's role has been successfully changed. This response has no body.

400 Bad Request

You tried to change the role of the only user with the owner role in the project:

[
  {
    "msg": "A project must have at least one owner."
  }
]

Example query

The following query would change the role of the user with ID 42 the role with ID 13 in the MyCoolProject project.

http PUT \
http://localhost:4242/api/admin/projects/MyCoolProject/users/42/roles/13 \
Authorization:$KEY

Remove a user from a project

This removes the specified role from the user in the project. Because users can only have one role in a project, this effectively removes the user from the project. The user must have the role indicated by the :roleId URL parameter for the request to succeed.

URL parameters

Parameter	Type	Description	Example value
userId	integer	The ID of the user you want to remove from the project.	1
projectId	string	The id of the project to remove the user from.	"MyCoolProject"
roleId	integer	The current role the of the user you want to remove from the project.	7

Responses

Responses data

200 OK

The user no longer has the specified role in the project. If the user had this role prior to this API request, they will have been removed from the project. This response has no body.

400 Bad Request

You tried to remove the only user with the role owner in the project:

[
  {
    "msg": "A project must have at least one owner."
  }
]

Example query

The following query would remove the user with ID 42 and role ID 13 from the MyCoolProject project.

http DELETE \
http://localhost:4242/api/admin/projects/MyCoolProject/users/42/roles/13 \
Authorization:$KEY