HMGET(3valkey)

📦
version 9.0.6 · 2 versions
, in fedora 44

💖 HMGET 💖

okay bestie so this is a page from the Valkey Command Manual — section 3valkey — and today's main character is hmget(3valkey). yes it's a whole manual page for one lil command and honestly? it deserves it. 🎀

✨ NAME ✨

hmget — grabs the values of all the fields in a hash. all of them. no cap. 🫶

🌸 SYNOPSIS 🌸

HMGET key field [field...]

🦋 DESCRIPTION 🦋

So basically, HMGET returns the values that are chillin' with the specified fields inside the hash that lives at key. that's it. that's the whole vibe. 💅

And here's the tea: if a field doesn't exist in the hash, you get a nil value back for it. no drama, no error, just nil. and because a key that doesn't exist at all is treated like an empty hash (iconic behavior honestly), running HMGET against a key that isn't even there will hand you back a whole list of nil values. every single one. it's giving "empty vibes only". 🕳️✨

lowkey the best way to see it is just... watching it happen:

127.0.0.1:6379> HSET myhash field1 "Hello"
(integer) 1
127.0.0.1:6379> HSET myhash field2 "World"
(integer) 1
127.0.0.1:6379> HMGET myhash field1 field2 nofield
1) "Hello"
2) "World"
3) (nil)

see how nofield just... showed up as (nil)? yeah. that's the move. 🫠

👑 REPLY 👑

valkey-protocol(7) Array reply: a list of values associated with the given fields, in the same order as they are requested. order matters bestie, do not come for the ordering. 🔥

💀 COMPLEXITY 💀

O(N) where N is the number of fields being requested. so the more fields you ask for, the more work it does. math is math. 🧮

🌈 ACL CATEGORIES 🌈

  • @fast
  • @hash
  • @read

⭐ HISTORY ⭐

  • Available since: 2.0.0 — a true OG, been here since forever, main character energy from day one. 🕰️👑

🎀 SEE ALSO 🎀

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

and that's the whole page bestie!! this was version 9.0.0, dated 2025-10-21, and it's the HMGET(3valkey) manual page — go forth and fetch those field values, you absolute legend. 💜✨🦋

📦 where this page comes from