This is example how to implement pubsub to mql4 and run headless in docker.

Copy file /mt4/startup.ini.dist > /mt4/startup.ini, add your Login, Password and Server

then run

docker-compose up --build -d

Subscribe channel Symbol-info to listen information of a symbol. It fire whenever this container start or when publish channel get-symbol-infor with message is a symbol

Subscribe channel tick to listen market-depth of symbol define in /mt4/startup.ini

Subscribe channel health to listen is EA still alive. Fire 1 message per 300s

Log can read on /mt4/logs or /mt4/MQL4/Files

For more information, read 2 responsitories below:

• Pubsub for MQL4: https://github.com/dingmaotu/mql4-redis
• Docker for MQL4: https://github.com/nevmerzhitsky/headless-metatrader4

To test, can use typescript

import * as redis from 'redis';

const subcriber = redis.createClient({
  host: process.env.REDIS_HOST,
  port: +(process.env.REDIS_PORT || 6379),
});

subcriber.subscribe('Symbol-info');
subcriber.subscribe('tick');
subcriber.subscribe('health');

subcriber.on('message', (channel, message: string) => {
  console.log(channel, message);
});

// subcriber and publisher must be 2 individual object
const publisher = redis.createClient({
  host: process.env.REDIS_HOST,
  port: +(process.env.REDIS_PORT || 6379),
});

setTimeout(() => {
  publisher.publish('get-symbol-infor', 'EURUSD');
}, 10000);