An example of a NodeRed Server for receiving and sending KPN LoRa messages. This includes several example to understand the different modules step by step. Please refer https://github.com/iotacademy/NodeRed_KPN_LoRa/wiki to get a step by step tutorial on how to build it yourself from scratch.
Please refer to NodeRed_KPN_LoRa_server.md to see the full implementation.