Hi everyone 
How can I write a function in neo4j that takes each person's name as input and output that person's relationships with other people in different files?
Can you clarify your requirements so we can help?
- Do you really mean a neo4j function that runs on the server and you call via cypher, or do you mean how can you do this in native cypher?
- What do you mean by "in a different files?" Do you want to write the data to a file?
- Are you executing the cypher in desktop, or are you using a driver?
In the meantime, the following cypher will get all the people a person knows, where the people are provided in a list. Maybe this helps getting you started.
with ['John', 'Sally', 'Paul'] as names
unwind names as name
match (n:Person{name:name})-[:KNOWS]->(m)
return n as person, collect(m) as knows
Test Data:
Result:
