First post here!
If you have any interest with Node-RED on IBM i (aka AS400 iSeries i5) take a look at a couple of my latest articles & video.
PowerWire articles
https://powerwire.eu/node-red-ibm-i/
https://powerwire.eu/node-red-db2-for-i-connector/
youTube
https://www.youtube.com/watch?v=CQsW8WujbKU
A YouTube like & subscribe would be appreciated!
Wow! AS/400's - blast from the past or what! 
Last time I was involved with those (actually I did more with IBM/3xx series mainframes) was back in the late '80s/early '90s. Having cut my IT teeth on IBM mainframes at the start of the '80s. 
Still going strong!
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