How can one connect the java application running outside the greengrass group to a greengrass group ? Kindly help me with this. Any thoughts/suggestions are appreciated.
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Your java program could be acting as a Greengrass Aware Device (GGAD) and connecting to Greengrass Core (GGC) using MQTT protocol. However, your java program will need to have a device certificate and be part of the group. An alternative is that you have a user lambda running inside your GGC and it opens a port for the external java program to connect to. The user lambda can be , for example, an HTTP server.
Ming Chan
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