Simulating expiring the key in redis

Introduction

An experiment that simulates expiring the key in redis by modifying the key expiration time。

CLI Command

• blade create redis cache-expire -h

Parameter

Name	Introduction	Type	Required	Example Value
addr	The address of redis server, the format is ip:port.	string	Y	192.168.56.101:6379
password	The password of redis server.	string	Y	123456
key	The key to be set an expiry, default expires all keys. The default value is "".	string	N	test1
expiry	The expiry of the key. An expiry string should be able to be converted to a time duration, such as "5s" or "30m".	string	Y	10s
option	The additional options of expiry, only NX, XX, GT, LT supported.	string	N	GT

Case

# Set the expiration time to 1 minute.
# blade create redis cache-expire --addr 192.168.56.101:6379 --password 123456 --key test1 --expiry 1m
{"code":200,"success":true,"result":"b6a0f477b7fb1f4c"}

# Set the expiration time when the new expiration time is greater than current one.
# blade create redis cache-expire --addr 192.168.56.101:6379 --password 123456 --key test1 --option GT --expiry 1m
{"code":200,"success":true,"result":"b6a0f477b7fb1f4c"}

Principle

Modify the expiration time by using Golang interface in go-redis package.

Q&A

Q: {"code":44000,"success":false,"error":"parse duration error: time: missing unit in duration \"1\": action not supported"}

A： An expiry string should be able to be converted to a time duration, such as "5s" or "30m".