通过javascript API将对象插入neo4j

Question

How can I insert an entire object into Neo4J using JS API? (without providing each and every property)

I've tried the following.( link )

session.run('UNWIND $obj as obj2 \n CREATE (p:Animals) \n set p=obj2 \n RETURN p', { obj: results.value })

where results.value = {id:"abc", name:"xyz", createdOn: new Date()}

But it gives the following error

Neo4jError: Property values can only be of primitive types or arrays thereof

Can anyone help on this?

Answer 1

Neo4j database supports properties of types ( docs ):

• Integer
• Float
• String
• Boolean
• List of these types

Probably the object stored in results.value has a property containing a complex object, something like:

{
    prop1 : 1
    complexProp : {
        propX : "abc",
        propY : 1,
    }
}

In the case of the above structure, the complexProp property will be the cause of your error because its type not fits in any Neo4j supported types.

So I think you have two alternatives.

1 - Move all sub-properties to the root, like:

 {
     prop1 : 1
     propX : "abc",
     propY : 1
 }

2 - Create a different node type for complexType property and use a relation between the two nodes.