A Swift NIO based MQTT v3.1.1 and v5.0 client.
MQTT (Message Queuing Telemetry Transport) is a lightweight messaging protocol that was developed by IBM and first released in 1999. It uses the pub/sub pattern and translates messages between devices, servers, and applications. It is commonly used in Internet of things (IoT) technologies.
MQTTNIO is a Swift NIO based implementation of a MQTT client. It supports
- MQTT versions 3.1.1 and 5.0.
- Unencrypted and encrypted (via TLS) connections
- WebSocket connections
- Posix sockets
- Apple's Network framework via NIOTransportServices (required for iOS).
You can find documentation for MQTTNIO here. There is also a sample demonstrating the use MQTTNIO in an iOS app found here