External hooks environment variables

File-based configuration

You can add _FILE to individual variables to provide their configuration in a separate file. Refer to Keeping sensitive data in separate files for more details.

You can define external hooks that n8n executes whenever a specific operation runs. Refer to Backend hooks for examples of available hooks and Hook files for information on file formatting.

Variable	Type	Default	Description
EXTERNAL_HOOK_FILES	String	-	Files containing backend external hooks. Provide multiple files separated by the character defined in EXTERNAL_HOOK_FILES_SEPARATOR.
EXTERNAL_HOOK_FILES_SEPARATOR	String	:	Separator character for EXTERNAL_HOOK_FILES. Use ; on Windows to avoid conflicts with drive-letter paths like C:\.
EXTERNAL_FRONTEND_HOOKS_URLS	String	-	URLs to files containing frontend external hooks. Provide multiple URLs as a colon-separated list (":").

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