Create (overwrite) variants for a feature toggle in all environments

PUT /api/admin/projects/:projectId/features/:featureName/variants

This overwrites the current variants for the feature specified in the :featureName parameter in all environments.

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 strictly less than 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

Request

Path Parameters

• projectId string required
• featureName string required

application/json

Body

arrayrequired

variantsSchema

• Array [
• name string required

  The variants name. Is unique for this feature toggle

• weight number required

  Possible values: <= 1000

  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

• weightType string

  Possible values: [variable, fix]

  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

• stickiness string

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

• payload object

  Extra data configured for this variant

  type string required

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

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

  value string required

  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 string required

  The name of the context field used to determine overrides

  values string[] required

  Which values that should be overriden

  ]
• ]

Responses

• 200
• 400
• 401
• 403
• 404

---

featureVariantsSchema

application/json

Schema

Schema

• version integer required

  The version of the feature variants schema.

• variants object[]required

  All variants defined for a specific feature toggle.

  Array [

  name string required

  The variants name. Is unique for this feature toggle

  weight number required

  Possible values: <= 1000

  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

  weightType string

  Possible values: [variable, fix]

  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

  stickiness string

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

  payload object

  Extra data configured for this variant

  type string required

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

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

  value string required

  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 string required

  The name of the context field used to determine overrides

  values string[] required

  Which values that should be overriden

  ]

  ]

Example (from schema)

{
  "version": 1,
  "variants": [
    {
      "name": "blue_group",
      "weight": 0,
      "weightType": "variable",
      "stickiness": "custom.context.field",
      "payload": {
        "type": "json",
        "value": "{\"color\": \"red\"}"
      },
      "overrides": [
        {
          "contextName": "userId",
          "values": [
            "red",
            "blue"
          ]
        }
      ]
    }
  ]
}

The request data does not match what we expect.

application/json

Schema

Schema

• id string

  The ID of the error instance

• name string

  The name of the error kind

• message string

  A description of what went wrong.

Example (from schema)

{
  "id": "9c40958a-daac-400e-98fb-3bb438567008",
  "name": "ValidationError",
  "message": "The request payload you provided doesn't conform to the schema. The .parameters property should be object. You sent []."
}

Authorization information is missing or invalid. Provide a valid API token as the authorization header, e.g. authorization:*.*.my-admin-token.

application/json

Schema

Schema

• id string

  The ID of the error instance

• name string

  The name of the error kind

• message string

  A description of what went wrong.

Example (from schema)

{
  "id": "9c40958a-daac-400e-98fb-3bb438567008",
  "name": "AuthenticationRequired",
  "message": "You must log in to use Unleash. Your request had no authorization header, so we could not authorize you. Try logging in at /auth/simple/login."
}

The provided user credentials are valid, but the user does not have the necessary permissions to perform this operation

application/json

Schema

Schema

• id string

  The ID of the error instance

• name string

  The name of the error kind

• message string

  A description of what went wrong.

Example (from schema)

{
  "id": "9c40958a-daac-400e-98fb-3bb438567008",
  "name": "NoAccessError",
  "message": "You need the \"UPDATE_ADDON\" permission to perform this action in the \"development\" environment."
}

The requested resource was not found.

application/json

Schema

Schema

• id string

  The ID of the error instance

• name string

  The name of the error kind

• message string

  A description of what went wrong.

Example (from schema)

{
  "id": "9c40958a-daac-400e-98fb-3bb438567008",
  "name": "NotFoundError",
  "message": "Could not find the addon with ID \"12345\"."
}

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