Bobcares

For every $500 you spend, we will provide you with a $500 credit on your account*

BLACK FRIDAY SPECIAL EXTENSION

*The maximum is $4000 in credits, Offer valid till December 6th, 2024, New Customers Only, Credit will be applied after purchase and expires after six (6) months

For every $500 you spend, we will provide you with a $500 credit on your account*

BLACK FRIDAY SPECIAL EXTENSION

*The maximum is $4000 in credits, Offer valid till December 6th, 2024, New Customers Only, Credit will be applied after purchase and expires after six (6) months

Redis HSETNX EXPIRE | Guide

by | Apr 13, 2024

Let’s see more details on combining HSETNX and EXPIRE on Redis in this article. As part of our Server Management Service, Bobcares provides answers to all of your questions.

Combining HSETNX and EXPIRE on Redis

HSETNX is a Redis command we use to set the value of a field in a hash only if the field does not already exist. It stands for “Hash Set if Not eXists”. The syntax is as follows:

HSETNX key field value

EXPIRE is a Redis command we can use to set an expiration time (TTL) on a key. After the specific amount of time, the key will automatically be deleted. The syntax is as follows:

EXPIRE key seconds

Combining HSETNX and EXPIRE on Redis allows us to set a hash field only if it does not already exist and automatically expire the key after a specified period. This can be useful for scenarios where we want to set temporary data in a hash field if it’s not already present, and we want it to automatically disappear after a certain time period. Here’s how we can do this in Redis:

redis hsetnx expire

In the above commands:

1. HSETNX sets the specified field in the hash stored at key to the given value, only if the field does not already exist.

2. EXPIRE sets the specified key to automatically expire after the specified number of seconds.

By combining these commands, we ensure that the hash field is set only if it doesn’t already exist, and we also set an expiration time for the key. This way, we have temporary data that automatically cleans up after itself, which can be handy for managing transient or temporary details in Redis.

An Example

redis hsetnx expire

[Searching solution for a different question? We’re happy to help.]

Conclusion

To conclude, the article offers the details provided by our Tech team on combining HSETNX and EXPIRE functions on Redis.

PREVENT YOUR SERVER FROM CRASHING!

Never again lose customers to poor server speed! Let us help you.

Our server experts will monitor & maintain your server 24/7 so that it remains lightning fast and secure.

GET STARTED

0 Comments

Submit a Comment

Your email address will not be published. Required fields are marked *

Never again lose customers to poor
server speed! Let us help you.