Nodes
Nodes are the core building blocks of your flows. They can act as events, functions, variables, or flow control operators.
Each node has a rectangular body that you can place anywhere on the canvas. Most nodes have input and output pins that allow you to wire them together (how to connect nodes).
We distinguish the following major node types:
- Event Nodes (red) mark the entry point into your flow execution and represent different triggering events. You can associate these nodes with events at the app level.
- Standard Nodes (transparent) typically have input and output pins for execution (white wires) plus pins for data. These nodes are executed only when an incoming execution pin is connected to a previously executed node in the flow.
- Pure Nodes (yellow) don’t have execution pins or wires—only data pins. They are automatically executed when their data (outputs) are required by downstream nodes.
- Comment Nodes (any color you like) don’t take part in flow execution and are used only for annotations. Editing comments opens a rich text editor that also supports embedded images.
- Placeholder Nodes allowing you to collapse sections of your flow.
You can browse all currently available nodes in the Node Catalog. Simply right-click anywhere on the canvas. You can browse nodes by following the catalog hierarchy or by searching for specific terms and keywords:
