I'm not quite sure which "this" you mean, but there's: Lua and varnish https://github.com/flygoast/libvmod-lua/ https://github.com/flygoast/libvmod-lua/ Lua i

I'm not quite sure which "this" you mean, but there's: Lua and varnish https://github.com/flygoast/libvmod-lua/ https://github.com/flygoast/libvmod-lua/ Lua in nginx https://openresty.org/ https://openresty.org/ And lua in haproxy - for example to verify jwt tokens: https://github.com/haproxytech/haproxy-lua-jwt https://github.com/haproxytech/haproxy-lua-jwt So depending on if you mean green-thread/sandbox or smart edge side includes - or application server... There may or may not be some thing out there already..?