Neo4j Bidirectional Relationship

Question

No, there isn’t. All relationships in neo4j have a direction, starting and ending at a given node.

There are a small number of workarounds.

Firstly, as you’ve suggested, we can either have two relationships, one going from A to B and the other from B to A.
Alternatively, when writing our MATCH query, we can specify to match patterns directionlessly, by using a query such as
```
MATCH (A)-[FRIEND]-(B) RETURN A, B
```
which will not care about whether A is friends with B or vice versa, and allows us to choose a direction arbitrarily when we create the relationship.