apoc.node.degree.in

Details
Syntax	`apoc.node.degree.in(node [, relTypes ])`
Description	Returns the total number of incoming `RELATIONSHIP` values connected to the given `NODE`.
Arguments	Name	Type	Description
	`node`	`NODE`	The node for which to count the total number of incoming relationships.
	`relTypes`	`STRING`	The relationship type to restrict the count to. The default is: ``.
Returns	`INTEGER`

Usage Examples

The examples in this section are based on the following sample graph:

MERGE (michael:Person {name: "Michael"})
WITH michael
CALL {
    WITH michael
    UNWIND range(0, 100) AS id
    MERGE (p:Person {name: "Person" + id})
    MERGE (michael)-[:KNOWS]-(p)
    RETURN count(*) AS friends
}

CALL {
    WITH michael
    UNWIND range(0, 50) AS id
    MERGE (p:Person {name: "Person" + id})
    MERGE (michael)-[:FOLLOWS]-(p)
    RETURN count(*) AS follows
}

RETURN friends, follows;

Results
friends	follows
101	51

MATCH (p:Person {name: "Michael"})
RETURN apoc.node.degree.in(p) AS output;

Results
output
0

MATCH (p:Person {name: "Person1"})
RETURN apoc.node.degree.in(p) AS output;

Results
output
2

MATCH (p:Person {name: "Person1"})
RETURN apoc.node.degree.in(p, "KNOWS") AS output;

Results
output
1

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