test.js

const http = require('http');

const a = {
    'content-type': 'text/plain'
};
const b = 'Hello, World!\n';

http.createServer((request, response) => {
    response.writeHead(200, a);
    response.write(b);
    response.end();

}).listen(8080);

test.lua

local ip = require 'ip'
local http = require 'http'

local acceptor = ip.tcp.acceptor.new()
acceptor:open('v4')
acceptor:set_option('reuse_address', true)
if not pcall(function() acceptor:bind(ip.address.loopback_v4(), 8080) end) then
    acceptor:bind(ip.address.loopback_v4(), 0)
end
print('Listening on ' .. tostring(acceptor.local_address) .. ':' ..
      acceptor.local_port)
acceptor:listen()

local res = http.response.new()

res.status = 200
res.reason = 'OK'
res.headers['content-type'] = 'text/plain'
res.body = 'Hello, World!\n'

while true do
    local sock = http.socket.new(acceptor:accept())
    spawn(function() pcall(function()
        local req = http.request.new()
        while true do
            sock:read_request(req)

            while sock.read_state ~= 'finished' do
                req.body = nil --< discard unused data
                sock:read_some(req)
            end

            sock:write_response(res)
        end
    end) end):detach()
end