#Feature Manger

Use the feature manager to control which issuer API features are enabled at service startup. This reduces complexity and the risk of misconfigurations.

#Feature Types

The feature manager offers two types Base and Optional.

#Base Features

Base features are generally always enabled and do not require additional configuration in most cases. They provide critical functionalities expected to be available by default.

#Optional Features

Optional features can either be enabled or disabled based on requirements.

1. Enabled by Default: These features do not need additional configuration to be useful. E.g. Health Checks operate without any need for specific configs.
2. Disabled by Default: These features require specific configuration to function. E.g. the Entra Integration needs access credentials and API URLs.

#How the Feature Manager Works

The Feature Manager ensures efficient and error-free initiation of services through the following steps:

1. Initialization with Feature Catalogs: Services are passed one or more Feature Catalogs when initialized.
2. Determination of Active Features: The initializer identifies explicitly enabled or disabled features and determines the default states of optional features.
3. Loading Configurations: Configurations for base features and explicitly enabled optional features are loaded, including default-enabled optional features.

This process results in:

• Loading only necessary configurations, reducing mental complexity and avoiding unused features.
• Minimizing required configuration through defaults, easing the setup process.
• Preventing invalid configurations from reaching production by validating during initialization.

#Feature Configuration

Configure features by updating the _features.conf file as explained here. A list of available features can be found here.