如何使用 json 文件将消息从 Rabbitmq 传输到 neo4j

Question

我是 rabbitmq 和 neo4j 的新手。 我从我的 rabbitmq 队列中的 ms-sql db 收到 json 消息。 尝试使用此 python 脚本将其发送到测试 neo4j db：

import pika, sys, os, json
from py2neo import Graph
def main():
    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
    channel = connection.channel()
    channel.queue_declare(queue='request_sql', durable=True)
    graph = Graph("bolt://10.133.100.105:7687", user="neo4j", password="123")
    query = """
RETURN $json
    """
    def callback(ch, method, properties, body):
       #print (" [x] Received %r" % json.loads(body))
       print(graph.run(query, json = body)) 
    channel.basic_consume(queue='request_sql', on_message_callback=callback, auto_ack=True)
    print(' [*] Waiting for messages. To exit press CTRL+C')
    channel.start_consuming()

if __name__ == '__main__':
    try:
        main()
    except KeyboardInterrupt:
        print('Interrupted')
        try:
            sys.exit(0)
        except SystemExit:
            os._exit(0)

在我运行它之后，我收到下一个错误：

  File "receive.py", line 25, in <module>
    main()
  File "receive.py", line 21, in main
    channel.start_consuming()
  File "/usr/local/lib/python3.6/site-packages/pika/adapters/blocking_connection.py", line 1866, in start_consuming
    self._process_data_events(time_limit=None)
  File "/usr/local/lib/python3.6/site-packages/pika/adapters/blocking_connection.py", line 2027, in _process_data_events
    self.connection.process_data_events(time_limit=time_limit)
  File "/usr/local/lib/python3.6/site-packages/pika/adapters/blocking_connection.py", line 834, in process_data_events
    self._dispatch_channel_events()
  File "/usr/local/lib/python3.6/site-packages/pika/adapters/blocking_connection.py", line 566, in _dispatch_channel_events
    impl_channel._get_cookie()._dispatch_events()
  File "/usr/local/lib/python3.6/site-packages/pika/adapters/blocking_connection.py", line 1494, in _dispatch_events
    evt.properties, evt.body)
  File "receive.py", line 18, in callback
    print(graph.run(query, json = body))
  File "/usr/local/lib/python3.6/site-packages/py2neo/database/__init__.py", line 709, in run
    return self.auto().run(cypher, parameters, **kwparameters)
  File "/usr/local/lib/python3.6/site-packages/py2neo/database/work.py", line 128, in run
    readonly=self.readonly, hydrant=hydrant)
  File "/usr/local/lib/python3.6/site-packages/py2neo/client/__init__.py", line 936, in auto_run
    result = cx.auto_run(graph_name, cypher, parameters, readonly=readonly)
  File "/usr/local/lib/python3.6/site-packages/py2neo/client/bolt.py", line 673, in auto_run
    result.buffer()
  File "/usr/local/lib/python3.6/site-packages/py2neo/client/bolt.py", line 949, in buffer
    self.__cx.sync(self)
  File "/usr/local/lib/python3.6/site-packages/py2neo/client/bolt.py", line 516, in sync
    self._audit(result)
  File "/usr/local/lib/python3.6/site-packages/py2neo/client/bolt.py", line 626, in _audit
    task.audit()
  File "/usr/local/lib/python3.6/site-packages/py2neo/client/bolt.py", line 883, in audit
    item.audit()
  File "/usr/local/lib/python3.6/site-packages/py2neo/client/bolt.py", line 1062, in audit
    raise self._failure
py2neo.database.work.ClientError: [Statement.SyntaxError] Type mismatch: expected Map, Node, Relationship, Point, Duration, Date, Time, LocalTime, LocalDateTime or DateTime but was String (line 3, column 16 (offset: 35))
"    UNWIND data.FirmID as id"

我想要的结果 - 从 json 火灾信息 neo4j 数据（图表等）传输数据

我做错了什么？ 需要一些建议和帮助：）