Get all flags (SDK)

GET /api/client/features

Returns the SDK configuration for all feature flags that are available to the provided API key. Used by SDKs to configure local evaluation

Responses

clientFeaturesSchema

application/json

Schema
Example (from schema)

Schema

version numberrequired

A version number for the format used in the response. Most Unleash instances now return version 2, which includes segments as a separate array

Example: 2

features

object[]

required

A list of feature flags with their configuration

Array [

name stringrequired

The unique name of a feature flag. Is validated to be URL safe on creation

Example: new.payment.flow.stripe

type string

What kind of feature flag is this. Refer to the documentation on feature flag types for more information

Example: release

description stringnullable

A description of the flag

Example: No variants here

enabled booleanrequired

Whether the feature flag is enabled for the current API key or not. This is ANDed with the evaluation results of the strategies list, so if this is false, the evaluation result will always be false

Example: true

stale boolean

If this is true Unleash believes this feature flag has been active longer than Unleash expects a flag of this type to be active

Example: false

impressionData booleannullable

Set to true if SDKs should trigger impression events when this flag is evaluated

Example: false

project string

Which project this feature flag belongs to

Example: new.payment.flow

strategies

object[]

Evaluation strategies for this flag. Each entry in this list will be evaluated and ORed together

Array [

id string

A uuid for the feature strategy

Example: 6b5157cb-343a-41e7-bfa3-7b4ec3044840

name stringrequired

The name or type of strategy

Example: flexibleRollout

title stringnullable

A descriptive title for the strategy

Example: Gradual Rollout 25-Prod

disabled booleannullable

A toggle to disable the strategy. defaults to false. Disabled strategies are not evaluated or returned to the SDKs

Example: false

featureName string

The name or feature the strategy is attached to

Example: myAwesomeFeature

sortOrder number

The order of the strategy in the list

Example: 9999

segments number[]

A list of segment ids attached to the strategy

Example: [1,2]

constraints

object[]

A list of the constraints attached to the strategy. See https://docs.getunleash.io/reference/strategy-constraints

Array [

contextName stringrequired

The name of the context field that this constraint should apply to.

Example: appName

operator stringrequired

The operator to use when evaluating this constraint. For more information about the various operators, refer to the strategy constraint operator documentation.

Possible values: [NOT_IN, IN, STR_ENDS_WITH, STR_STARTS_WITH, STR_CONTAINS, NUM_EQ, NUM_GT, NUM_GTE, NUM_LT, NUM_LTE, DATE_AFTER, DATE_BEFORE, SEMVER_EQ, SEMVER_GT, SEMVER_LT]

Example: IN

caseInsensitive boolean

Whether the operator should be case sensitive or not. Defaults to false (being case sensitive).

Default value: false

inverted boolean

Whether the result should be negated or not. If true, will turn a true result into a false result and vice versa.

Default value: false

values string[]

The context values that should be used for constraint evaluation. Use this property instead of value for properties that accept multiple values.

Example: ["my-app","my-other-app"]

value string

The context value that should be used for constraint evaluation. Use this property instead of values for properties that only accept single values.

Example: my-app

]

variants

object[]

Strategy level variants

Array [

name stringrequired

The variant name. Must be unique for this feature flag

Example: blue_group

weight integerrequired

The weight is the likelihood of any one user getting this variant. It is an integer between 0 and 1000. See the section on variant weights for more information

Possible values: <= 1000

weightType stringrequired

Set to fix if this variant must have exactly the weight allocated to it. If the type is variable, the weight will adjust so that the total weight of all variants adds up to 1000. Refer to the variant weight documentation.

Possible values: [variable, fix]

Example: fix

stickiness stringrequired

The stickiness to use for distribution of this variant. Stickiness is how Unleash guarantees that the same user gets the same variant every time

Example: custom.context.field

payload

object

Extra data configured for this variant

type stringrequired

The type of the value. Commonly used types are string, number, json and csv.

Possible values: [json, csv, string, number]

value stringrequired

The actual value of payload

]

parameters

object

A list of parameters for a strategy

property name* string

]

variants

object[]

nullable

Variants configured for this flag

Array [

name stringrequired

The variants name. Is unique for this feature flag

Example: blue_group

weight numberrequired

The weight is the likelihood of any one user getting this variant. It is a number between 0 and 1000. See the section on variant weights for more information

Possible values: <= 1000

weightType string

Set to fix if this variant must have exactly the weight allocated to it. If the type is variable, the weight will adjust so that the total weight of all variants adds up to 1000

Possible values: [variable, fix]

Example: variable

stickiness string

Stickiness is how Unleash guarantees that the same user gets the same variant every time

Example: custom.context.field

payload

object

Extra data configured for this variant

type stringrequired

The type of the value. Commonly used types are string, number, json and csv.

Possible values: [json, csv, string, number]

value stringrequired

The actual value of payload

overrides

object[]

Overrides assigning specific variants to specific users. The weighting system automatically assigns users to specific groups for you, but any overrides in this list will take precedence.

Array [

contextName stringrequired

The name of the context field used to determine overrides

Example: userId

values string[]required

Which values that should be overriden

Example: ["red","blue"]

]

dependencies

object[]

Feature dependencies for this flag

Array [

feature stringrequired

The name of the feature we depend on.

Example: parent_feature

enabled boolean

Whether the parent feature should be enabled. When false variants are ignored. true by default.

Example: false

variants string[]

The list of variants the parent feature should resolve to. Leave empty when you only want to check the enabled status.

Example: ["variantA","variantB"]

]

segments

object[]

A list of Segments configured for this Unleash instance

Array [

id numberrequired

The segment's id.

name string

The name of the segment.

Example: segment A

constraints

object[]

required

List of constraints that determine which users are part of the segment

Array [

contextName stringrequired

The name of the context field that this constraint should apply to.

Example: appName

operator stringrequired

The operator to use when evaluating this constraint. For more information about the various operators, refer to the strategy constraint operator documentation.

Example: IN

caseInsensitive boolean

Whether the operator should be case sensitive or not. Defaults to false (being case sensitive).

Default value: false

inverted boolean

Whether the result should be negated or not. If true, will turn a true result into a false result and vice versa.

Default value: false

values string[]

The context values that should be used for constraint evaluation. Use this property instead of value for properties that accept multiple values.

Example: ["my-app","my-other-app"]

value string

The context value that should be used for constraint evaluation. Use this property instead of values for properties that only accept single values.

Example: my-app

]

query

object

A summary of filters and parameters sent to the endpoint. Used by the server to build the features and segments response

tag array[]

Features tagged with one of these tags are included

Example: [["simple:payment","simple:stripejourney"]]

project string[]deprecated

Features that are part of these projects are included in this response. This is now handled by API tokens and was marked as deprecated in v5

Example: ["new.payment.flow"]

namePrefix string

Features are filtered to only include features whose name starts with this prefix

Example: payment

environment stringdeprecated

Strategies for the feature flag configured for this environment are included. This is now handled by API tokens and was marked as deprecated in v5

inlineSegmentConstraints boolean

Set to true if requesting client does not support Unleash-Client-Specification 4.2.2 or newer. Modern SDKs will have this set to false, since they will be able to merge constraints and segments themselves

Example: true

{
  "version": 2,
  "features": [
    {
      "name": "new.payment.flow.stripe",
      "type": "release",
      "description": "No variants here",
      "enabled": true,
      "stale": false,
      "impressionData": false,
      "project": "new.payment.flow",
      "strategies": [
        {
          "id": "6b5157cb-343a-41e7-bfa3-7b4ec3044840",
          "name": "flexibleRollout",
          "title": "Gradual Rollout 25-Prod",
          "disabled": false,
          "featureName": "myAwesomeFeature",
          "sortOrder": 9999,
          "segments": [
            1,
            2
          ],
          "constraints": [
            {
              "contextName": "appName",
              "operator": "IN",
              "caseInsensitive": false,
              "inverted": false,
              "values": [
                "my-app",
                "my-other-app"
              ],
              "value": "my-app"
            }
          ],
          "variants": [
            {
              "name": "blue_group",
              "weight": 0,
              "weightType": "fix",
              "stickiness": "custom.context.field",
              "payload": {
                "type": "json",
                "value": "{\"color\": \"red\"}"
              }
            }
          ],
          "parameters": {}
        }
      ],
      "variants": [
        {
          "name": "blue_group",
          "weight": 0,
          "weightType": "variable",
          "stickiness": "custom.context.field",
          "payload": {
            "type": "json",
            "value": "{\"color\": \"red\"}"
          },
          "overrides": [
            {
              "contextName": "userId",
              "values": [
                "red",
                "blue"
              ]
            }
          ]
        }
      ],
      "dependencies": [
        {
          "feature": "parent_feature",
          "enabled": false,
          "variants": [
            "variantA",
            "variantB"
          ]
        }
      ]
    }
  ],
  "segments": [
    {
      "id": 0,
      "name": "segment A",
      "constraints": [
        {
          "contextName": "appName",
          "operator": "IN",
          "caseInsensitive": false,
          "inverted": false,
          "values": [
            "my-app",
            "my-other-app"
          ],
          "value": "my-app"
        }
      ]
    }
  ],
  "query": {
    "tag": [
      [
        "simple:payment",
        "simple:stripejourney"
      ]
    ],
    "namePrefix": "payment",
    "inlineSegmentConstraints": true
  }
}

Get all flags (SDK)

/api/client/features

Responses​

Responses