Node Libraries

Nodes are grouped in libraries. Enable or disable them per project with the Libraries button of the top bar. Disabled libraries don't appear in the node search.

Right-click the graph to search for a node by name.

Available libraries

Library	Content	Enabled by default
Standard	Flow control, errors, objects, booleans, HTTP requests.	Yes
Array	Create and transform arrays.	Yes
Date	Dates and the Temporal API.	Yes
Dom	Browser dialogs (Alert, Confirm, Prompt), HTML/XML parsing, DOM methods.	Yes
Json	Parse and serialize JSON.	Yes
Math	Arithmetic, comparisons, rounding, numbers.	Yes
Misc	Cookies and HTTP errors for the backend.	Yes
Regex	Regular expressions.	Yes
String	Text operations.	Yes
Url	Build and read URLs.	Yes
Reactivity	Reactive time helpers.	No
Utils	Clipboard, hashing, UUID, file download...	No
Bigint	Arbitrary-precision integers.	No

Installed npm packages and plugins add their own nodes.

Events

Events start the execution of a graph.

Node	Triggered when
On Mounted	The component is displayed.
On Unmounted	The component is removed.
On Load	The logic is loaded.
On Click, On Key Down, On Mouse Enter...	The user interacts with a layout element (create them from the element's Events panel).
Manual Play	You click it in the editor (useful for testing).

HTTP requests

Fetch sends an HTTP request (GET, POST, PUT, DELETE) to any URL, with headers and a body. It outputs the response text, the parsed json, and the status.

CORS

In the editor, enable the Proxy option of Fetch if the API blocks requests from the browser (CORS errors). The proxy is only used in the editor.

To call your own backend, use the node generated by each route instead.

Errors

Node	Description
Try	Runs the try branch. If it throws, runs catch with the error. finally always runs.
Throw	Throws an error with an optional message, interrupting execution.
Get Message	Returns the message of an error.
Error	Backend only: stops a route and returns an HTTP error code (400, 401, 403, 404...).

Cookies

Backend nodes from the Misc library: Get Cookie, Set Cookie, and Clear Cookie. Cookies are signed with the Cookie salt set in Backend Settings.

Navigation

Navigate opens another page of your app. Get Router gives access to the router (current route, parameters).

Utilities

Node	Library	Description
Clipboard Read / Clipboard Write	Utils	Read or write the clipboard.
Hash	Utils	Hash a string.
UUID	Utils	Generate a unique identifier.
File Download	Utils	Make the browser download a file.
Use Now	Reactivity	The current date, refreshed at an interval.
Use Date Format	Reactivity	A date formatted with a pattern, kept up to date.
Use Time Ago	Reactivity	A relative date ("3 minutes ago"), kept up to date.
Log	Built-in	Prints a value in the console.
Comment	Built-in	A note in the graph.