A node can store data within its context object.
For more information about context, read the Working with Context guide.
There are three scopes of context available to a node:
Unlike the Function node which provides predefined variables to access each of these contexts, a custom node must access these contexts for itself:
Each of these context objects has the same
set functions described
in the Writing Functions guide.
Note: Configuration nodes that are used by and shared by other nodes are by default global, unless otherwise specified by the user of the node. As such it cannot be assumed that they have access to a Flow context.