staleTtl
PRO

Type:

Default: false

It enables serve a stale response while a background refresh cache copy is being generated over the target url.

import mql from '@microlink/mql'

const { data } = await mql('https://microlink.io', {
  ttl: "1d",
  staleTtl: 0
})

The value provided can't be higher than ttl, being supported the following formats:

as number in milliseconds (e.g., 86400000).
as humanized representation of the number (e.g., '24h').

The following humanized number variations are supported:

A good pattern is to set staleTtl=0 to always revalidate in the background under expiration, maximizing the cache usage serving the last cache copy generated while the revalidation will refresh it.