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EVAL_RO

Syntax
EVAL_RO script numkeys [key [key ...]] [arg [arg ...]]
Available since:
Redis Open Source 7.0.0
Time complexity:
Depends on the script that is executed.
ACL categories:
@slow, @scripting,
Compatibility:
Redis Enterprise and Redis Cloud compatibility

This is a read-only variant of the EVAL command that cannot execute commands that modify data.

For more information about when to use this command vs EVAL, please refer to Read-only scripts.

For more information about EVAL scripts please refer to Introduction to Eval Scripts.

Examples

> SET mykey "Hello"
OK
> EVAL_RO "return redis.call('GET', KEYS[1])" 1 mykey
"Hello"
> EVAL_RO "return redis.call('DEL', KEYS[1])" 1 mykey
(error) ERR Error running script (call to b0d697da25b13e49157b2c214a4033546aba2104): @user_script:1: @user_script: 1: Write commands are not allowed from read-only scripts.

Redis Enterprise and Redis Cloud compatibility

Redis
Enterprise
Redis
Cloud
Notes
✅ Standard
✅ Active-Active
✅ Standard
✅ Active-Active

Return information

The return value depends on the script that was executed.
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