lemma/infra/backfill/ at main · lemma.pub/lemma · Tangled

lemma.pub / lemma

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Blogging platform with advanced tools for arts and sciences.

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lemma / infra / backfill /

at main 1 folder 3 files

lemma Preserve GSI1SK across re-indexes to prevent duplicate timeline items 5w ago

Preserve GSI1SK across re-indexes to prevent duplicate timeline items When a post is re-indexed (e.g. after a publication rename or repeated backfill), upsertDocument was overwriting GSI1SK with a new Date.now()-clamped value. Because fanInExistingPosts uses GSI1SK as the timeline SK, two subscribes separated by a re-index would produce two differently-keyed timeline items for the same post rkey. Fix: read the existing GSI1SK before writing; only compute a new value if the record doesn't exist yet. This makes GSI1SK write-once and keeps fan-in idempotent across re-indexes.

1 month ago

package-lock.json

Preserve GSI1SK across re-indexes to prevent duplicate timeline items When a post is re-indexed (e.g. after a publication rename or repeated backfill), upsertDocument was overwriting GSI1SK with a new Date.now()-clamped value. Because fanInExistingPosts uses GSI1SK as the timeline SK, two subscribes separated by a re-index would produce two differently-keyed timeline items for the same post rkey. Fix: read the existing GSI1SK before writing; only compute a new value if the record doesn't exist yet. This makes GSI1SK write-once and keeps fan-in idempotent across re-indexes.

1 month ago

Upgrade dev dependency to fix alert: esbuild enables any website to send any requests to the development server and read the response

1 month ago

Initial commit

1 month ago