Here's what I've got:
function abortTimeoutSignal(timeMs: number) {
const abortController = new AbortController()
void new Promise(resolve => setTimeout(resolve, timeMs)).then(() => {
abortController.abort()
})
return abortController.signal
}
async function gravatarExistsForEmail({
email,
request,
timings,
forceFresh,
}: {
email: string
request: Request
timings?: Timings
forceFresh?: boolean
}) {
return cachified({
key: `gravatar-exists-for:${email}`,
cache: lruCache,
request,
timings,
forceFresh,
ttl: 1000 * 20,
staleWhileRevalidate: 1000 * 60 * 60 * 24 * 365,
checkValue: prevValue => typeof prevValue === 'boolean',
getFreshValue: async () => {
const gravatarUrl = getAvatar(email, {fallback: '404'})
try {
const avatarResponse = await fetch(gravatarUrl, {
method: 'HEAD',
signal: abortTimeoutSignal(1000 * 2),
})
return avatarResponse.status === 200
} catch (error: unknown) {
console.error(`Error getting gravatar for ${email}:`, error)
return false
}
},
})
}
I have the abortTimeoutSignal thing in place so gravatar won't cause me issues if my page is waiting on it. I think if my page is waiting on it I'd prefer that the timeout time be more like 500ms, but if the update is happening in the background (SWR) then I'm fine with it taking even 10 seconds. Thoughts? Maybe an argument passed to getFreshValue?
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