useNodesData()

This hook lets you subscribe to changes of a specific nodes data object.

import { useNodesData } from '@xyflow/react';
 
export default function () {
  const nodeData = useNodesData('nodeId-1');
 
  const nodesData = useNodesData(['nodeId-1', 'nodeId-2']);
}

Signature

Name	Type
#Params
#`nodeIds`	`string \| string[]` A single node ID or an array of node IDs whose `data` objects you want to observe
#Returns
#`id`	`string`
#`type`	`string`
#`data`	`any \| any[]`

Typescript

This hook accepts a generic type argument of custom node types. See this section in our Typescript guide for more information.

const nodesData = useNodesData<NodesType>(['nodeId-1', 'nodeId-2']);

useNodes()useNodesInitialized()