const http2 = require('http2');
const tls = require('tls');
const stream = require('stream');

const options = {
    ALPNProtocols: ['h2'],
    host: 'nghttp2.org',
    servername: 'nghttp2.org',
    port: 443
};

const socket = tls.connect(options, async () => {
    console.log('TLS Connected!');

    const proxy = new stream.Duplex({
        read(...args) {
            const x = socket.read();
            console.log('read', JSON.stringify(x));
            if (x !== null)
            this.push(x);
        },

        final(...args) {
            socket.end(...args);
        },

        write(...args) {
            socket.write(...args);
        },

        destroy(...args) {
            socket.destroy(...args);
        }
    });

    await new Promise(resolve => setTimeout(resolve, 2000));

    const session = http2.connect('https://nghttp2.org', {
        createConnection: () => socket
    });

    session.once('remoteSettings', () => {
        console.log('HTTP2 Received remote settings!');
    });

    session.once('connect', () => {
        console.log('HTTP2 Connected!');
    });

});