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A node may define a number of properties as credentials. These are properties that are stored separately to the main flow file and do not get included when flows are exported from the editor. To. Getting Started Installing Node-RED Creating your first flow Node-RED Concepts Configuring Node-RED The Settings file Configuration options Securing Node-RED Logging Using Node-RED Using. The following properties can be used to configure Node-RED. When running as a normal application, it loads its configuration from a settings file. For more information about the settings file and where it is,. The Node-RED palette includes a default set of nodes that are the basic building blocks for creating flows. This page highlights the core set you should know about. All nodes include documentation you. Node A Node is the basic building block of a flow. Nodes are triggered by either receiving a message from the previous node in a flow, or by waiting for some external event, such as an incoming HTTP.