The Redis HGET command allows us to get a value from a hash. It returns the value associated with the specified field in the hash at the specified key.

Syntax

The syntax goes like this:

HGET key field

Example

Suppose we set the following hash:

HSET customer firstname "Rob" lastname "Banks"

Result:

(integer) 2

Now let’s get one of the values from that key

HGET customer firstname

Result:

"Rob"

It returned Rob as expected.

Non-Existent Fields

If the field doesn’t exist, nil is returned:

HGET customer age

Result:

(nil)

Non-Existent Keys

Running the command against a key that doesn’t exist results in nil being returned:

HGET nonexistentkey firstname

Result:

(nil)

Passing the Wrong Number of Arguments

Passing the wrong number of arguments results in an error:

HGET customer firstname lastname

Result:

(error) ERR wrong number of arguments for 'hget' command