apoc.hashing.fingerprintGraph

Details
Syntax	`apoc.hashing.fingerprintGraph([ propertyExcludes ])`
Description	Calculates a MD5 checksum over the full graph. This function uses in-memory data structures. Unsuitable for cryptographic use-cases.
Arguments	Name	Type	Description
	`propertyExcludes`	`LIST<STRING>`	Property keys to exclude from the hashing. The default is: `[]`.
Returns	`STRING`

Usage Examples

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

MERGE (joe:Person {name: "Joe"})
MERGE (ryan:Person {name: "Ryan"})
MERGE (ryan)-[:FOLLOWS {since: datetime("2020-11-04")}]->(joe);

This function computes a fingerprint of the whole graph using the MD5 checksum:

RETURN apoc.hashing.fingerprintGraph() AS output;

Results
output
"655408F901B554A8999AEF61EA6D5AE5"

We can pass in a list of properties to exclude from the fingerprint, as shown in the following query:

RETURN apoc.hashing.fingerprintGraph(["since"]) AS output;

Results
output
"0583812D25093B4CD03C96DF15215048"