HGETALL for all fields in Redis

Introduction

HGETALL helps you get all the information stored in a group of key-value pairs inside Redis, so you can see everything at once.

When you want to see all details about a user stored in Redis.

When you need to get all settings saved in a Redis hash for an application.

When you want to check all fields and values of a product stored in Redis.

When debugging to see what data is inside a Redis hash key.

Syntax

Redis

HGETALL key

The command returns all fields and their values stored in the hash at the given key.

If the key does not exist, it returns an empty list.

Examples

Gets all fields and values for the user with ID 1000.

Redis

HGETALL user:1000

Retrieves all configuration settings stored in the 'settings' hash.

Redis

HGETALL settings

Sample Program

First, we store three fields for user:1. Then we get all fields and values for user:1.

Redis

HMSET user:1 name "Alice" age "30" city "Paris"
HGETALL user:1

Important Notes

The output is a list where fields and values alternate.

Use HGETALL only when you want all data; for specific fields, use HGET.

In newer Redis versions, consider using HGETALL carefully with large hashes to avoid performance issues.

Summary

HGETALL returns all fields and values from a Redis hash key.

It is useful to see complete data stored in a hash at once.

The output lists fields and values in order.