从函数返回gocql的会话变量

Question

I have the following gocql connection.

 //cassandra connection
  cluster := gocql.NewCluster("localhost")
  cluster.Keyspace = "demo"
  cluster.DefaultPort = 9042
  cluster.Consistency = gocql.Quorum
  session, _ = cluster.CreateSession()
  defer session.Close()

I want to put this inside a golang function and return the session variable,but I don't know its datatype. I tried returning *Session but it gives me an error. Any idea how to do this.

Answer 1

Per the documentation (http://godoc.org/github.com/gocql/gocql#ClusterConfig.CreateSession) the type is *gocql.Session. I would note, however, that if you defer the session.Close() call, it will run as soon as you return, meaning you will never return a valid connection. You will have to close the session in the calling function.