# lib/da_product_app/mqtt.ex defmodule DaProductApp.MQTT do def start_phoenix_client do client_id = "phoenix_client_node_devteam_abhishek" Tortoise.Supervisor.start_child( client_id: client_id, server: {Tortoise.Transport.Tcp, host: "demo.ctrmv.com", port: 1883}, handler: {DaProductApp.MQTT.Handler, [client_id: client_id]}, subscriptions: [{"/ack/qr-device/+", 1},{"/ack/#", 1}] ) end end