feat: support revalidateTag with SWR behavior #3173
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pieh
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serhalp
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Oct 13, 2025
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| const timestampsOrNulls = await Promise.all(tags.map((tag) => getTagManifest(tag, cacheStore))) | ||
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| const timestamps = timestampsOrNulls.filter((timestamp) => timestamp !== null) | ||
| if (timestamps.length === 0) { | ||
| const expirationTimestamps = timestampsOrNulls |
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left over from refactor:
Suggested change
| const timestampsOrNulls = await Promise.all(tags.map((tag) => getTagManifest(tag, cacheStore))) | |
| const timestamps = timestampsOrNulls.filter((timestamp) => timestamp !== null) | |
| if (timestamps.length === 0) { | |
| const expirationTimestamps = timestampsOrNulls | |
| const manifestsOrNulls = await Promise.all(tags.map((tag) => getTagManifest(tag, cacheStore))) | |
| const expirationTimestamps = manifestsOrNulls |
| const timestamps = timestampsOrNulls.filter((timestamp) => timestamp !== null) | ||
| if (timestamps.length === 0) { | ||
| const expirationTimestamps = timestampsOrNulls | ||
| .filter((timestamp) => timestamp !== null) |
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same here
Suggested change
| .filter((timestamp) => timestamp !== null) | |
| .filter((manifest) => manifest !== null) |
| return Math.max(...expirationTimestamps) | ||
| } | ||
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| export type TagStaleOrExpired = |
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nit: this sounds like it wouldn't include fresh at first glance. maybe something like:
Suggested change
| export type TagStaleOrExpired = | |
| export type TagStaleOrExpiredStatus = |
or...
Suggested change
| export type TagStaleOrExpired = | |
| export type TagFreshness = |
🤔
| /** | ||
| * Timestamp when tagged cache entry should no longer serve stale content. | ||
| */ | ||
| expiredAt: number |
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really nitpicky, but my brain interprets this past tense as meaning this would never be set to a future timestamp in advance
Suggested change
| expiredAt: number | |
| expireAt: number |
or
Suggested change
| expiredAt: number | |
| expiresAt: number |
| getLogger().withFields({ tags }).debug('doRevalidateTagAndPurgeEdgeCache') | ||
| async function doRevalidateTagAndPurgeEdgeCache( | ||
| tags: string[], | ||
| durations?: { expire?: number }, |
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suggestion:
Suggested change
| durations?: { expire?: number }, | |
| durations?: { expireSeconds?: number }, |
| export function markTagsAsStaleAndPurgeEdgeCache(tagOrTags: string | string[]) { | ||
| export function markTagsAsStaleAndPurgeEdgeCache( | ||
| tagOrTags: string | string[], | ||
| durations?: { expire?: number }, |
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suggestion:
Suggested change
| durations?: { expire?: number }, | |
| durations?: { expireSeconds?: number }, |
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| if (nextVersionSatisfies('>=16.0.0-alpha.0')) { | ||
| test.describe('app router on-demand revalidation (Next 16 APIs)', () => { |
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since these tests will be relatively slow with all the waiting and they should be independent, maybe we could parallelize them?
Suggested change
| if (nextVersionSatisfies('>=16.0.0-alpha.0')) { | |
| test.describe('app router on-demand revalidation (Next 16 APIs)', () => { | |
| test.describe('app router on-demand revalidation (Next 16 APIs)', () => { | |
| test.describe.configure({ mode: 'parallel' }) |
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Description
To support https://nextjs.org/blog/next-16-beta#improved-caching-apis
Note that
updateTagis supported without any changes (I just added test cases for it). The runtime changes are to supportrevaligateTagwith SWR behaviorDocumentation
Tests
Will be added
Relevant links (GitHub issues, etc.) or a picture of cute animal