Quickstart
If you want to get up-and-running as soon as possible you’re in the right place! This page will take you from zero to a working React Flow app in a few minutes. From there, you can take a deeper look at what React Flow is all about, check out the examples, or dive into the API docs.
React Flow in 60 seconds
Play online
You can try React Flow without setting anything up locally by checking out the starter projects we have on CodeSandbox:
Vite template
If you want to get started right away, you can use our vite template:
npx degit xyflow/vite-react-flow-template app-name
Installation
To get started locally you should have a few things:
- Node.js installed.
- Either npm or another package manager like yarn or pnpm.
- A working knowledge of React. You don’t need to be an expert, but you should be comfortable with the basics.
First, spin up a new React project however you like; we recommend using Vite but the choice is yours.
npm create vite@latest my-react-flow-app -- --template react
React Flow is published on npm as @xyflow/react
, so go ahead and add it next.
npm install @xyflow/react
Lastly, spin up the dev server and we’re good to go!
npm run dev
Creating your first flow
The reactflow
package exports the <ReactFlow />
component as the default export.
That and a handful of nodes and edges are all we need to get something going! Get
rid of everything inside App.jsx
and add the following:
import React from 'react';
import { ReactFlow } from '@xyflow/react';
import '@xyflow/react/dist/style.css';
const initialNodes = [
{ id: '1', position: { x: 0, y: 0 }, data: { label: '1' } },
{ id: '2', position: { x: 0, y: 100 }, data: { label: '2' } },
];
const initialEdges = [{ id: 'e1-2', source: '1', target: '2' }];
export default function App() {
return (
<div style={{ width: '100vw', height: '100vh' }}>
<ReactFlow nodes={initialNodes} edges={initialEdges} />
</div>
);
}
There are a few things to pay attention to here:
- You must import the React Flow stylesheet.
<ReactFlow />
component must be wrapped in an element with a width and height.
The
Adding interactivity
Graphs created with React Flow are fully interactive. We can move nodes around, connect them together, delete them, … To get the basic functionality we need to add three things:
- A callback for what to do when nodes change.
- A callback for what to do when edges change.
- A callback for what to do when nodes are connected.
Fortunately for you, we provide some hooks to make this easy!
import React, { useCallback } from 'react';
import {
ReactFlow,
useNodesState,
useEdgesState,
addEdge,
} from '@xyflow/react';
import '@xyflow/react/dist/style.css';
const initialNodes = [
{ id: '1', position: { x: 0, y: 0 }, data: { label: '1' } },
{ id: '2', position: { x: 0, y: 100 }, data: { label: '2' } },
];
const initialEdges = [{ id: 'e1-2', source: '1', target: '2' }];
export default function App() {
const [nodes, setNodes, onNodesChange] = useNodesState(initialNodes);
const [edges, setEdges, onEdgesChange] = useEdgesState(initialEdges);
const onConnect = useCallback(
(params) => setEdges((eds) => addEdge(params, eds)),
[setEdges],
);
return (
<div style={{ width: '100vw', height: '100vh' }}>
<ReactFlow
nodes={nodes}
edges={edges}
onNodesChange={onNodesChange}
onEdgesChange={onEdgesChange}
onConnect={onConnect}
/>
</div>
);
}
Some extra goodies
Finally, React Flow ships with some plugins out of the box for things like a
<Minimap />
or viewport
<Controls />
.
import React, { useCallback } from 'react';
import {
ReactFlow,
MiniMap,
Controls,
Background,
useNodesState,
useEdgesState,
addEdge,
} from '@xyflow/react';
import '@xyflow/react/dist/style.css';
const initialNodes = [
{ id: '1', position: { x: 0, y: 0 }, data: { label: '1' } },
{ id: '2', position: { x: 0, y: 100 }, data: { label: '2' } },
];
const initialEdges = [{ id: 'e1-2', source: '1', target: '2' }];
export default function App() {
const [nodes, setNodes, onNodesChange] = useNodesState(initialNodes);
const [edges, setEdges, onEdgesChange] = useEdgesState(initialEdges);
const onConnect = useCallback(
(params) => setEdges((eds) => addEdge(params, eds)),
[setEdges],
);
return (
<div style={{ width: '100vw', height: '100vh' }}>
<ReactFlow
nodes={nodes}
edges={edges}
onNodesChange={onNodesChange}
onEdgesChange={onEdgesChange}
onConnect={onConnect}
>
<Controls />
<MiniMap />
<Background variant="dots" gap={12} size={1} />
</ReactFlow>
</div>
);
}
Et voila. You’ve already created your first interactive flow! Check out the links below on where to head next.