WREN.EVALSHA

WREN.EVALSHA sha1 numkeys [key ...] [arg ...]

Run a cached Wren script by the SHA1 hex digest of its source. This is the Wren counterpart of EVALSHA; semantics (numkeys, the 0-based KEYS/ARGV Lists, the Redis class, the wrapping that captures the return value, and the conversions) match WREN.EVAL.

A script enters the Wren cache when first run with WREN.EVAL or loaded with WREN.SCRIPT LOAD. The Wren cache is independent of the PUC-Lua and Luau caches.

If the digest is not cached:

(error) NOSCRIPT No matching script. Please use WREN.EVAL.

Example

> WREN.SCRIPT LOAD "return 42"
"1fa00e76656cc152ad327c13fe365858fd7be306"

> WREN.EVALSHA 1fa00e76656cc152ad327c13fe365858fd7be306 0
(integer) 42

> WREN.EVALSHA ffffffffffffffffffffffffffffffffffffffff 0
(error) NOSCRIPT No matching script. Please use WREN.EVAL.

See also

• WREN.EVAL, WREN.SCRIPT.
• EVALSHA — the PUC-Lua equivalent.