Logic nodes

The most heterogeneous category: declaring and calling functions, requiring modules, module-load-time setup, and reading/writing named variables. See Node Categories for the color legend and main-canvas vs. Function-Graph availability rules.

Node	Type	What it does
Function	logic.function	Declares a named JavaScript function at the top level of the current file.
Handler Function	logic.handlerFunction	Declares a named Express request handler with fixed req, res, next parameters — the node every route needs at least one of.
Export	logic.export	Marks which Function node(s) and/or variable(s) in this file are exported.
Require	logic.require	Imports another blueprint file's exports, or an installed npm package, exactly like Node's own require().
Function Call	logic.functionCall	Calls an exported function from a Required module, or a sibling function in the same file, including recursion.
Callback	logic.callback	Calls a wired-in function reference with however many arguments you give it.
Path Extractor	logic.pathExtractor	Resolves a free-form dot/bracket property path against a wired object, calling it if the resolved value is a function.
Promise	logic.promise	Constructs and handles a JavaScript Promise, awaited inline or handled via Then/Catch execution arms.
Start	logic.graphEntry	Function Graph only — the graph's entry point, never added manually.
Return	logic.graphReturn	Ends the chain it's wired into, optionally as a real early return from inside a Branch/Switch arm.
Begin	logic.begin	Runs once when this file is loaded, before any request comes in.
Get Variable	variable.get	Reads the current value of a declared variable.
Set Variable	variable.set	Assigns a new value to a declared variable, then continues to the next node.