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docs(examples): add on-demand ISR to cms-sanity
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| import { isValidRequest } from '@sanity/webhook' | ||
| import { sanityClient } from '../../lib/sanity.server' | ||
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| const AUTHOR_UPDATED_QUERY = ` | ||
| *[_type == "author" && _id == $id] { | ||
| "slug": *[_type == "post" && references(^._id)].slug.current | ||
| }["slug"][]` | ||
| const POST_UPDATED_QUERY = `*[_type == "post" && _id == $id].slug.current` | ||
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|
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| const getQueryForType = (type) => { | ||
| switch (type) { | ||
| case 'author': | ||
| return AUTHOR_UPDATED_QUERY | ||
| case 'post': | ||
| return POST_UPDATED_QUERY | ||
| default: | ||
| throw new TypeError(`Unknown type: ${type}`) | ||
| } | ||
| } | ||
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| const log = (msg, error) => | ||
| console[error ? 'error' : 'log'](`[revalidate] ${msg}`) | ||
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| export default async function revalidate(req, res) { | ||
| if (!isValidRequest(req, process.env.SANITY_STUDIO_REVALIDATE_SECRET)) { | ||
| const invalidRequest = 'Invalid request' | ||
| log(invalidRequest, true) | ||
| return res.status(401).json({ message: invalidRequest }) | ||
| } | ||
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| const { _id: id, _type } = req.body | ||
| if (typeof id !== 'string' || !id) { | ||
| const invalidId = 'Invalid _id' | ||
| log(invalidId, true) | ||
| return res.status(400).json({ message: invalidId }) | ||
| } | ||
|
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||
| log(`Querying post slug for _id '${id}', type '${_type}' ..`) | ||
| const slug = await sanityClient.fetch(getQueryForType(_type), { id }) | ||
| const slugs = (Array.isArray(slug) ? slug : [slug]).map( | ||
| (_slug) => `/posts/${_slug}` | ||
| ) | ||
| const staleRoutes = ['/', ...slugs] | ||
|
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||
| try { | ||
| await Promise.all( | ||
| staleRoutes.map((route) => res.unstable_revalidate(route)) | ||
| ) | ||
| const updatedRoutes = `Updated routes: ${staleRoutes.join(', ')}` | ||
| log(updatedRoutes) | ||
| return res.status(200).json({ message: updatedRoutes }) | ||
| } catch (err) { | ||
| log(err.message, true) | ||
| return res.status(500).json({ message: err.message }) | ||
| } | ||
| } |