import { createPBatch } from "p-batcher"

const api = createPBatch((keys: number[]) => {
  console.log("batching", keys)
  return keys.map((k) => `res-${k}`)
}, {
  maxBatchSize: 3,
})

const res = await Promise.all([
  api(1),
  api(2),
  api(3),
  api(4),
  api(5),
])

console.log(res)

/*
output:
batching [ 1, 2, 3 ]
batching [ 4, 5 ]
[ 'res-1', 'res-2', 'res-3', 'res-4', 'res-5' ]

*/