PixivFE/doc/dev/framework-migration.md

Migrating from gofiber to net/http -- the plan

Tips

• To access /:abc, use r.PathValue("abc").
• Want to associate arbitrary value with a request? Use r.Context.Value().
• Don't use r.Response. It's nil.
• Only use the following HTTP status codes:
  • 303 StatusSeeOther: set method to GET
  • 307 StatusTemporaryRedirect: method and body not changed
  • 308 StatusPermanentRedirect: method and body not changed

todo

• add limiter (maybe it should be in nginx)
• add caching (maybe it should be in nginx)

Guide for caching

The majority of the site's traffic is images, and all images on the Pixiv route can be cached forever. Cached in browser: pixiv headers cache images for year On the server, the reverse proxy (e.g. nginx) can be cached worry-free forever.

JSON requests to Pixiv can be cached for some time. todo: We should have a middleware handling that.

Assets are already cached properly thanks to net/http.

Every rendered page can be cached for 5 minutes or so in the browser. However, after changing settings, the page need to be refreshed instantly. Cache in browser: todo: read below implement in template/render.go The reverse proxy shouldn't do anything about this.

The only three headers that controls caching in browser and middleboxes:

• Age
• Cache-Control
• Expires