Node-Red Setup and Admin Notes

Note: Working Notes Node red uses a settings file called settings.js located in /usr/lib/node-modules/node-red/ folder by default. You can create your own settings file and customise it either by copying the existing file or using the file available from Github here. To use your own settings file use the -s switch when starting node-red e.g. node-red -s mysettingsfile.js If you place a settings.js in the .node-red folder that will be used by default.

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Storing Data in Node-Red Variables

Node-red nodes pass the msg object between nodes. However this object is replaced by the next msg object. So how do you store data between node calls? Node-Red provides three mechanisms: The context object -stores data for a node The Flow object – stores data for a flow The global object -stores data for the canvas

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