我正在尝试在 neo4j 中创建一个唯一节点,但无法使其工作。
节点代码:
var node = db.createNode({sampleDataKey: "sampleDataValue"});
node.save(function (err, user) {
node.index('user', 'indexValue', 'indexValue', function (err) {
if (err) console.log(err);
console.log(user.id);
});
});
我正在使用这个节点模块:https ://github.com/thingdom/node-neo4j
我已经从 neo4j 库中修改了 Node.js。至:
else {
var urlToPost = ((("" + services.node_index) + "/") + index + '?uniqueness=create_or_fail');
console.log(urlToPost);
console.log(key + ':' + value);
/* 123 */ return __this._request.post({
/* 124 */ url: urlToPost,
/* 125 */ json: {
/* 126 */ key: key,
/* 127 */ value: value,
/* 128 */ uri: __this.self
}
}, __cb(_, __frame, 17, 21, function ___(__0, __4) {
/* 123 */ response = __4;
console.log('response');
__then();
}, true));
}
每次我执行代码时都会创建一个新节点,但在那之后会出错。...这是 2 次执行的控制台日志:
30 May 16:51:24 - [nodemon] starting `node app.js`
Express server listening on port 3000
http://localhost:7474/db/data/index/node/user?uniqueness=create_or_fail
indexValue:indexValue
response
338
30 May 16:55:38 - [nodemon] restarting due to changes...
30 May 16:55:38 - [nodemon] /Users/nikolaialeksandrenko/Documents/work/noject/app.js
30 May 16:55:38 - [nodemon] starting `node app.js`
Express server listening on port 3000
http://localhost:7474/db/data/index/node/user?uniqueness=create_or_fail
indexValue:indexValue
response
339