GETEX
Syntax
        GETEX key [EX seconds | PX milliseconds | EXAT unix-time-seconds | PXAT unix-time-milliseconds | PERSIST]
- Available since:
 - 6.2.0
 - Time complexity:
 - O(1)
 - ACL categories:
 - 
              
                
@write,@string,@fast, 
Get the value of key and optionally set its expiration.
GETEX is similar to GET, but is a write command with additional options.
Options
The GETEX command supports a set of options that modify its behavior:
EXseconds -- Set the specified expire time, in seconds.PXmilliseconds -- Set the specified expire time, in milliseconds.EXATtimestamp-seconds -- Set the specified Unix time at which the key will expire, in seconds.PXATtimestamp-milliseconds -- Set the specified Unix time at which the key will expire, in milliseconds.PERSIST-- Remove the time to live associated with the key.
Examples
RESP2 Reply
Bulk string reply: the value ofkey
Nil reply: if key does not exist.
            
          
            
              
                RESP3 Reply
Bulk string reply: the value ofkey
Null reply: if key does not exist.