We recently started adding endpoints to fetch certain data used by frontend rendered blocks. Unfortunately the performance of these endpoints is quite bad (.5 to 1 second response time). Currently these GET requests are not cached by Cloudflare, which is probably because they use a query string to pass the post id (e.g. https://github.com/greenpeace/planet4-plugin-gutenberg-blocks/blob/58caa8c87fcc38d3632486b702c078738fa118fa/assets/src/blocks/Articles/useArticlesFetch.js#L43-L43 ), which could need configuration in Cloudflare.

Tested changing the nginx config to allow caching for these requests here https://github.com/greenpeace/planet4-docker/compare/cache-custom-endpoints. I didn't want to remove the rule to not cache things with a query string, so instead I added an override for those endpoints. But if it would be possible to remove the cache bypass for urls with a query string that would be better.

Tasks

• Test caching these endpoints in OpenResty, before we enable caching in Cloudflare
• Check default Cache TTL of OpenResty
• Investigate adding a Cache header for the browser