Environment Variables

General Configuration

Variable	Type	Description	Default
CHF_CONFIG_PATH	string	Path to the config JSON file	/app/config/config.json
CHF_CACHE_CONFIG	boolean	Enable or disable config caching	true

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Database Configuration

These values will be appended to the databaseConfigs array in config.json at runtime. For a more complex or multiple DB configurations, use configuration file.

Variable	Type	Description
CHF_DB_URL	string	Full database connection URL
CHF_DB_USERNAME	string	Database username
CHF_DB_PASSWORD	string	Database password
CHF_DB_NAME	string	Name of the database
CHF_DB_CONFIG_NAME	string	Optional name used to identify this database configuration (defaults to CHF_DB_NAME if not set)

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Export Settings

Each value provided will override the corresponding key in the exportConfig section of config.json at runtime.

Variable	Type	Description	Allowed Values
CHF_EXPORT_FORMAT	enum	Format used for export	PDF, SVG
CHF_EXPORT_PADDING	number	Padding (in pixels) applied on export	Non-negative integer

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Canvas Settings

Each value provided will override the corresponding key in the canvasConfig section of config.json at runtime.

Variable	Type	Description	Notes / Example
CHF_CANVAS_SNAP_TO_GRID	boolean	Snap canvas elements to a grid
CHF_CANVAS_GRID_SIZE	number	Grid size in pixels	Positive integer
CHF_CANVAS_BACKGROUND_COLOR	string	Hex color for canvas background (#rrggbb format)	e.g. #ffffff
CHF_CANVAS_AUTO_FIT_VIEW	boolean	Fit view of flow chart on database selection

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Materialized View Settings

Each value provided will override the corresponding key in the materializedViewsConfig section of config.json at runtime.

Variable	Type	Description	Notes / Example
CHF_MAT_VIEWS_RENDER_MODE	enum	Determines how a materialized view is displayed	ROWS, AS_SELECT, CREATE_COMMAND (see config section)

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For those who want to dive deeper, you can find the current environment variable schema in env.ts.