When building an IoT-based service, we need to implement a messaging mechanism that transmits data collected by the IoT devices to a hub or a server. That mechanism is known as a messaging protocol. A messaging protocol is a set of rules and formats that are agreed upon among entities that want to communicate with each other.

When dealing with IoT, one of the first things that come to mind is the limited processing, networking, and storage capabilities these devices operate with. These constraints make it challenging to implement a messaging protocol to facilitate communication. Ideally, we should use a protocol that takes all these issues into consideration.

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