Neo4j的get_or_create独特的REST API批次问题

Question

以下REST API批处理失败：

POST http://localhost:7474/db/data/batch [{"method":"POST","to":"index/node/name uniqueness=get_or_create","body":{"key":"name","value":"Person1","properties":{"Type":"PERSON"}},"id":1}, 
{"method":"POST","to":"index/node/name?uniqueness=get_or_create","body":{"key":"name","value":"Person2","properties":{"Type":"PERSON"}},"id":2}, 
{"method":"POST","to":"{1}/relationships","body":{"type":"Knows","to":"{2}","data":{"Since":"2012"}},"id":3}] 

了500内部服务器错误。

由于某些原因，在使用唯一性= get_or_create时，似乎不可能使用{1}和{2}引用批处理中的节点。或者我错过了什么？

Answer 1

您可以在第三个操作中使用密码进行索引查找以访问新创建的节点。

start n1=node:name(name={name1}), n2=node:name(name={name2}) 
create n1-[:Knows {props}]->n2 

与参数

{ 
"query":"start n1=node:name(name={name1}), n2=node:name(name={name2}) create n1-[:Knows {props}]->n2", 
"params":{"name1":"Person1","name2":"Person2","props":{"Since":"2012"}} 
}