Skip to main content

​
Feature Flags App

The feature flags app enables runtime control of features without deploying code changes.

​
Overview

Feature flags allow:
  • Testing in production
  • Incremental rollouts
  • Quick fixes
  • Per-customer features
See Feature Flags for detailed patterns.

​
Checking Flags

​
Backend

if ctx.feature_flag_enabled(FeatureFlagNameEnum.MY_FEATURE):
    # New behavior
else:
    # Old behavior

​
Frontend

const isEnabled = useFeatureFlagActive(FeatureFlagNameEnum.MY_FEATURE);

​
Flag Scopes

ScopeDescription
EnvironmentAll requests in environment
CustomerSpecific customer
UserSpecific user

​
Models

ModelDescription
FeatureFlagThe flag itself
FeatureFlagOverrideOverride for user/customer

​
Lifecycle

1

Add flag

Add to enum, i18n, create migration.
2

Use flag

Check in code, roll out by scope.
3

Remove flag

After full rollout, remove code and migration.

Feature Flags Architecture

Detailed patterns and best practices.

Core App

RequestCtx and flag checking.