running features

Running Features

Features are resolved through variations of relevant experiences. When you run a feature, the SDK finds all experiences whose variations include a fullStackFeature change linked to that feature, evaluates targeting rules, buckets the visitor, and returns the resolved feature status and variable values. See the data model for the full resolution chain.

Run a Single Feature

Returns a single feature's status and variable values for the current visitor.

from convert_sdk import FeatureStatus

# Returns FeatureResult | None — None is a normal miss (feature not declared, or
# the visitor isn't bucketed into a variation carrying it), not an error:
feature = context.run_feature("feature-key")
if feature is not None and feature.status is FeatureStatus.ENABLED:
    headline = feature.variables.get("headline")  # cast to the variable's declared type

Parameters:

Parameter	Type	Required	Description
featureKey	string	Yes	The feature's unique key
attributes	object	No	Bucketing attributes (see creating a user context for the full attributes reference), plus:
			typeCasting (boolean) -- auto-convert values to the variable's defined type (default: true)
			experienceKeys (string[]) -- limit evaluation to specific experiences only

Run All Features

Returns all features with their status and variable values for the current visitor.

for feature in context.run_features():
    if feature.status is FeatureStatus.ENABLED:
        print("enabled:", feature.feature_key)

Parameters:

Parameter	Type	Required	Description
attributes	object	No	Bucketing attributes (see creating a user context for the full attributes reference), plus typeCasting (boolean, default: true)

Returns: An array of BucketedFeature objects.

BucketedFeature Fields

Each resolved feature is returned as a BucketedFeature with the following fields:

Field	Type	Description
featureId	string	The feature ID
featureKey	string	The feature key
status	string / FeatureStatus	"enabled" or "disabled" (PHP uses the FeatureStatus enum)
variables	object / array	The feature variables with their resolved values

Complete Example

End-to-end flow: initialize the SDK, create a user context, run a feature, and check its status and variables.

from convert_sdk import Core, SDKConfig, FeatureStatus

core = Core(SDKConfig(sdk_key="your-sdk-key")).initialize()

context = core.create_context("user-unique-id")
feature = context.run_feature("feature-key")

# run_feature returns None on a miss (unlike the Ruby/Swift disabled-sentinel):
if feature is not None and feature.status is FeatureStatus.ENABLED:
    cta_color = feature.variables.get("ctaColor", "#0066ff")

core.close()