If you’ve been working with MQTT brokers in terminal management systems, you’ll know they’re incredibly lightweight and efficient when handling real-time communication between devices. As someone with over five years of experience in this domain, I’ve seen the good, the bad, and the outright ugly. In this article, I’m sharing some hard-earned lessons, best practices, and use cases, specifically for industries like e-commerce and payments, where reliability, security, and speed are non-negotiable.

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