->tags()

Attach cache tags to one response, so StaticCache::purgeTags() can purge it later.

return Inertia::render('Post/Show', ['post' => $post])
    ->tags(['posts', "post:{$post->id}", "author:{$post->author_id}"]);

Reference

Inertia\Response::tags(array|string $tags): Inertia\Response

Tags from the route (->isr(tags: [...])) and from the response are merged. Calling it several times adds tags.

Good to know

• Pick tags from the data the page shows: a page listing posts gets posts; a page showing post 42 gets post:42.
• HasStaticTags purges [table, singular:id] by default (posts, post:42). Use the same names here.
• Only applies to isr and static routes.
• CDNs without cache tags (Bunny, CloudFront, nginx) need the tag registry to purge by tag.
• The tag header is capped by the CDN's size limit (16 KB on Cloudflare and Fastly); tags beyond it are dropped.