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Configuration

This section outlines where the configuration for the Identity Resolver Service (IDR) is stored and details the environment variables used to manage its behavior.

Location

The configuration for the Identity Resolver Service (IDR) is stored in environment-specific files located in the project’s app directory. These files are used to define environment variables based on the application’s runtime environment, which is determined by the NODE_ENV variable. The files are:

• .env.development.local and .env.development for the development environment.
• .env.test.local and .env.test for the test environment.
• .env.production.local and .env.production for the production environment.
  The .env.[environment].local files take precedence over the corresponding .env.[environment] files, allowing for local overrides without affecting the base configuration.

Core Variables

Variable	Description
NODE_ENV	Specifies the environment (development, test, production)
RESOLVER_DOMAIN	The base URL of the resolver service
PORT	The port the resolver service is exposed to
APP_NAME	The name of the application
API_KEY	API key for authentication
LINK_TYPE_VOC_DOMAIN	The base URL of the link type vocabulary endpoint

Object Storage Configuration

Variable	Description
OBJECT_STORAGE_ENDPOINT	The MinIO server endpoint or object storage endpoint
OBJECT_STORAGE_PORT	The MinIO server port. If using object storage, not required
OBJECT_STORAGE_USE_SSL	Whether to use SSL for MinIO connections
OBJECT_STORAGE_ACCESS_KEY	The MinIO access key or cloud provider access key
OBJECT_STORAGE_SECRET_KEY	The MinIO secret key or cloud provider secret key
OBJECT_STORAGE_PATH_STYLE	Enable or disable path-style requests for MinIO. Set to false for cloud providers. Set to true if you are using MinIO Gateway. By default, it is set to true
OBJECT_STORAGE_BUCKET_NAME	Name of the MinIO bucket to use

Other Configuration

Variable	Description
IDENTIFIER_PATH	Path for identifier-related operations

NODE_ENV

The NODE_ENV variable is crucial for determining which environment variable files are loaded by the application:

• development: Loads the environment variables from .env.development.local and .env.development.
• test: Loads the environment variables from .env.test.local and .env.test.
• production: Loads the environment variables from .env.production.local and .env.production.

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