[Go] hiredis:redis C Client Usage note

1. compile
2. use
   • initialize
   • to connect to a Redis database
     

     Rediscontext * pconn = Red Isconnect (Redisip.c_str (), redisport);
     if (m_clocal = = NULL)
     {
     return 1;
     }

     if (Pconn->err)
     {
     cout << "Connection to redis[" << redisip << "] Error:" << pCo nn->errstr;
     Redisfree (Pconn);
     Return 2;
     }

   • execute command
     

     String cmd= "Set foo bar;
     Redisreply * reply= (redisreply *) Rediscommand (Pconn, Cmd.c_str ());
     if (reply = = NULL)
     {
     cout << "redis[" << redisip << "] excute" << cmd << "fa iled, error is: "<< pconn->errstr;
     Redisfree (pconn);
     Pconn=null;
     Return 3;
     }
     Freereplyobject (reply);

   • Parse results
     • different commands return different types of results, which need to be resolved according to the Reply->type field
3. Considerations

Once An error is returned the context cannot being reused and you should set up a new connection.

When the command is executed in the example above, if an error is returned, the connection is not available and the connection needs to be re-established.

For more articles, welcome to my Site: 01 streams.

[Go] hiredis:redis C Client Usage note