apoc.util.validate

Details
Syntax	`apoc.util.validate(predicate, message, params)`
Description	If the given predicate is true an exception is thrown.
Input arguments	Name	Type	Description
	`predicate`	`BOOLEAN`	The predicate to check against.
	`message`	`STRING`	The error message to throw if the given predicate evaluates to true.
	`params`	`LIST<ANY>`	The parameters for the given error message.

Usage Examples

The following throws an exception because the predicate is true:

WITH true AS predicate
CALL apoc.util.validate(predicate,'message %d',[42])
RETURN count(*);

Results
Failed to invoke procedure `apoc.util.validate`: Caused by: java.lang.RuntimeException: message 42

The following does nothing because the predicate is false:

WITH false AS predicate
CALL apoc.util.validate(predicate,'message %d',[42])
RETURN count(*);

Results
count(*)
1