Tag Varnish

The varnish is a well-known HTTP accelerator. As the continuation of the GoInPractice series, today I’ll show how you can build a simple (and naive) varnish implementation in Go. Some of the code is reused from Writing a reverse proxy so if you don’t understand something, I recommend taking a look at the blog post.

We’ll split our project into a few parts. The first one will be the caching mechanism. Its responsibility will be storing the data to cache and invalidate it after reaching the deadline. We’ll use mutexes for synchronization between goroutines.