Write from a scheduled function

Something has to write the content a build reads: a scheduled function, a form handler, or a webhook. Outside Eleventy, build a store directly with createDataStore:

import { createDataStore } from "@allons-y/eleventy-plugin-netlify-data-store";

const { writeBlob } = createDataStore({ storeName: "content" });

export default async () =>
	writeBlob("activity", {
		meta: { generatedAt: new Date().toISOString() },
		entries: await fetchEntries(),
	});

The generatedAt filter & the stale flag both build on meta.generatedAt, so set it to an ISO timestamp every time the content is produced. Everything else in the envelope is the writer's to define.

writeBlob never throws. It resolves to { statusCode, body }: 200 on success, 400 when no data was supplied, & 500 with the error message when the store rejects the write. A function that should fail loudly on a bad write can check statusCode & throw.

Set NETLIFY_SITE_ID & NETLIFY_TOKEN in the function's environment, or pass siteID & token as options. See How it works.

A successful write also refreshes the local cache, so a read that follows in the same process sees the new value immediately.