Here is the example about the Souin initialization.

  import (

	souin_echo ""

func main(){

    // ...
	s := souin_echo.New(souin_echo.DevDefaultConfiguration)
    // ...


With that your application will be able to cache the responses if possible and returns at least the Cache-Status HTTP header with the different directives mentionned in the RFC specification.
You have to pass a Souin BaseConfiguration structure into the NewHTTPCache method (you can use the DefaultConfiguration variable to have a built-in production ready configuration).

Look at the configuration section to discover all configurable keys here.

Other resources

You can find an example for a docker-compose stack inside the examples folder on the Github repository. Look at the BaseConfiguration structure on documentation.