FCALL_RO(3valkey)

✨ FCALL_RO ✨

okay bestie, welcome to the fcall_ro page from the Valkey Command Manual — it's giving "read-only queen, no notes" and honestly? iconic. 💅

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🌸 NAME 🌸

fcall_ro — literally just invokes a read-only function. that's the whole vibe. 🦋

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🎀 SYNOPSIS 🎀

FCALL_RO function numkeys key [key...]  arg [arg...]

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💖 DESCRIPTION 💖

so here's the tea ☕ — this is the read-only variant of the valkey-fcall(7) FCALL command, and the way it works is that it cannot execute commands that modify data. like, it will not touch your data, periodt. 🙅♀️✨

if you're sitting there like "okay but when do I use this one vs FCALL", go read valkey-programmability(7) → the Read-only scripts section. it explains the whole thing and it ate. 🔥

and for the bigger picture, more deets live in valkey-functions-intro(7) → Introduction to Valkey Functions. 🫶

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🌈 REPLY 🌈

the return value depends on the function that was executed. yeah bestie, it's mysterious like that — whatever your function hands back is what you get. 💀✨

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🦋 COMPLEXITY 🦋

also depends on the function that is executed. no cap, it's all on your function's shoulders. 😭

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👑 ACL CATEGORIES 👑

• @scripting
• @slow

both of them. slay. 💜

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⭐ HISTORY ⭐

• Available since: 7.0.0

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💅 SEE ALSO 💅

go read these too, they're all in the group chat:

• eval(3valkey)
• evalsha(3valkey)
• evalsha_ro(3valkey)
• eval_ro(3valkey)
• fcall(3valkey)
• function(3valkey)
• function-delete(3valkey)
• function-dump(3valkey)
• function-flush(3valkey)
• function-help(3valkey)
• function-kill(3valkey)
• function-list(3valkey)
• function-load(3valkey)
• function-restore(3valkey)
• function-stats(3valkey)
• script(3valkey)
• script-debug(3valkey)
• script-exists(3valkey)
• script-flush(3valkey)
• script-help(3valkey)
• script-kill(3valkey)
• script-load(3valkey)
• script-show(3valkey)

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and that's the whole page!! 🎀 this one is from Valkey version 9.0.0, dated 2025-10-21 — so yeah, she's fresh, she's cute, she's read-only. mwah. 💋✨🌸🫶👑