This is an Eclipse Paho C library based Async MQTT client (subscriber and publisher) plugin for Unreal Engine 5.
https://github.com/eclipse/paho.mqtt.c
https://github.com/FF-Plugins-Active/FF_MQTT_Sync
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Android Platform support
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I assume you to know how can you connect an MQTT broker.
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You can see a sample blueprint in "Content/BPs" folder. Just change connection informations based on your broker.
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You need to put on of these protocols before URL "mqtt://", "mqtts://", "ws://", "wss://", "ssl://"
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You need to put port after the URL
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Other than these, there is no documentation.
I share this with MIT because I don't want to restrict you about your commercial projects. But you can't "sell" this plugin on any marketplace. You can merely "share" it as "free" with "credit".