README.md

YaegiDemo

This is a demo project to show how to use Yaegi to load and run Go code at runtime.

How to play with this demo

Run make run to run the demo, which is a simple HTTP server, and then you can use curl to test it:

$ curl localhost:8080 -i

You will get the following response:

HTTP/1.1 200 OK
Cache-Control: no-cache
Content-Type: text/plain; charset=utf-8
Via: useless-helper
Date: Thu, 23 Nov 2023 12:24:31 GMT
Content-Length: 241

Hello!
Your Content-Type is
Your User-Agent is curl/8.1.2
Your Host is localhost:8080
Your RemoteAddr is 127.0.0.1:61784
Your RequestURI is /
Your Method is GET
Your Proto is HTTP/1.1
Your URL is /
Code above is wrote by GitHub Copilot.

:)⏎

But, all the logic is controlled by the Go code in rule/rule.go, which is hot-reloaded by Yaegi at runtime.

Modify the code in rule/rule.go and save it, then you will see the response is changed, without restarting the server.

Have fun!