Anybody implemented http caching when serving a rest API or graphql?

[tangui]

@kanishka

I’ll take this as it is so easy that no one has bothered to implement libraries or utilities to facilitate this, just use http header functions in phoenix.

I have actually , released these libraries a few months ago.

PlugHTTPCache and TeslaHTTPCache - HTTP caching libraries for elixir

I’m glad to release 2 Elixir libraries related to HTTP caching. PlugHTTPCache is a simple plug that automatically caches HTTP responses, and returns them directly when they’re present in the cache. pipeline :cache do plug PlugHTTPCache, @caching_options end ... scope "/", PlugHTTPCacheDemoWeb do pipe_through :browser scope "/some_route" do pipe_through :cache ... end and HTTP caching is enabled. TeslaHTTPCache, you guessed it, is a Tesla middleware that caches HTTP respon…

For now only with a memory backend, WIP for the disk backend.

I released it because of a not so great experience with Varnish. As @BartOtten put it it brings:

@BartOtten

Plus:

• you can test it without running an extra service
• you can use libs to form BEAM clusters, sharing cache (or broadcast cache updates)
• one less single point of failure

plus many other things, like programmatically accessing the cache in addition to the implemented libs (eg., you can cache chunks of a list response so that individual objects are cache as well). It integrates well with the existing tools we use (telemetry for instance).