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Documentation Index

Fetch the complete documentation index at: https://upstash.com/docs/llms.txt

Use this file to discover all available pages before exploring further.

​
Arguments

​
destination
string
required
The key to write the union to.
​
keys
integer
required
How many keys to compare.
​
keys
string | string[]
required
The keys to compare.
​
options
​
aggregate
sum | min | max
The aggregation method.
​
weight
number
The weight to apply to each key.
​
weights
number[]
The weights to apply to each key.

​
Response

The number of elements in the resulting set.
await redis.zadd(
    "key1", 
    { score: 1, member: "member1" },
)
await redis.zadd(
    "key2",
    { score: 1, member: "member1" },
    { score: 2, member: "member2" },
)

const res = await redis.zunionstore("destination", 2, ["key1", "key2"]);
console.log(res) // 2