apoc.case

This procedure is not considered safe to run from multiple threads. It is therefore not supported by the parallel runtime. For more information, see the Cypher Manual → Parallel runtime.

Details
Syntax	`apoc.case(conditionals [, elseQuery, params ]) :: (value)`
Description	For each pair of conditional and read-only queries in the given `LIST<ANY>`, this procedure will run the first query for which the conditional is evaluated to true. If none of the conditionals are true, the `ELSE` query will run instead.
Input arguments	Name	Type	Description
	`conditionals`	`LIST<ANY>`	A list of conditionals, where each conditional is a pair: the first element is a predicate, and the second is a Cypher query to be executed based on that predicate.
	`elseQuery`	`STRING`	A Cypher query to evaluate if all conditionals evaluate to false. The default is: ''.
	`params`	`MAP`	A map of parameters to be used in the executed Cypher query. The default is: `{}`.
Return arguments	Name	Type	Description
Return arguments	`value`	`MAP`	The result returned from the evaluated Cypher query.

Usage examples

CALL apoc.case([
  false, 'RETURN "firstFalse" as b',
  false, 'RETURN "secondFalse" as b',
  true, 'RETURN "firstTrue" as b'
]);

Results
value
{b: "firstTrue"}

CALL apoc.case([
  false, 'RETURN "firstFalse" as b',
  false, 'RETURN "secondFalse" as b',
  false, 'RETURN "thirdFalse" as b'
  ],
  'RETURN "elseBranch" as b'
);

Results
value
{b: "elseBranch"}