kutil VS otto

For reference, here's my implementation. Note that my wrapper supports both structured and traditional logging APIs.

For JS in Go use goja, which offers excellent integration with Go. Also I maintain an extension that adds Common-JS compatibility to it.

I think your instinct is right. For all my projects I use these wrappers. If you have any feedback or contributions they would be much appreciated. I know it's a losing battle, but there's no choice but to fight. Semper fi.

This is mostly what I did with my kutil logging library (sorry, no good documentation on how to use it yet). So I can use the same API in all my code and then pick various backends per project in order to better unify the log. For example, in Kubernetes I can use klog as the backend. I also wrote my own "simple" backend that does everything that I personally want. I'm sure there are other similar libraries out there.

I really like the idea of an Extended JSON, so I created my own version called "CJSON". The code is pretty straightforward.

robertkrimen/otto

Ummm, excuse me, but where the f&$k has this been hiding? I’ve been looking for ways to extend my go applications with scripting support. I started with Lua (worked ) then Python (worked but hacky) then javascript using otto [1]. However it lacks ES6 support so having pretty OOP js code is a non-starter. I would love to have Java as a runtime that can be executed from goroutines.

[1] https://github.com/robertkrimen/otto

Either call a JavaScript interpreter like node with exec.Command and read its stdout, or use a pure Go JavaScript interpreter like goja or otto.

Otto https://github.com/robertkrimen/otto Seems interesting. It lets me call Go functions from inside JS as well as return results. The fncs pattern reminds me a bit of how the template engine works.

> why host other languages

Here's an example:

I recently finished building https://subzo.com.au which allows customizing and ordering 3D models. The way the model's cost, volume and other attributes are calculated needs to be done both on the frontend (for speed) and on the backend (to validate). Backend is in Go and we can't practically run Go in the browser. So instead, I wrote the calculation snippets in JavaScript (which runs natively in the browser) and ran them on the backend on a JavaScript VM library written in Go [1].

[1]: https://github.com/robertkrimen/otto

Googling suggests https://github.com/robertkrimen/otto which allows scripting in javascript for golang projects. This would be definitely enough, but in some way it may be a bit overkill - and scripts supporter shall need some knowledge of javascript which is not always straightforward :)

It doesn't make sense to ask the user (aka me) to change the code every time I want to modify any web apps right? So I decided to split the webapps into two parts. WebApps are those only require basic permissions and do not interact with the host OS. They will be run inside a sandbox created using ECMA5 VM called Otto. The other type is called Subservice, in which it will need extra permission to interact with the OS and require higher level of access to the backend file system.