Updatable Edge

Existing edges can be updated, meaning their source / target position can be changed interactively.

Update an edge by simply dragging it from one node to another at the edge-anchor (handles).

You can enable updating edges either globally by passing the edgesUpdatable prop or you can enable it for specific edges by using the updatable attribute.

App.vue

main.css

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<script setup>
import { Background } from '@vue-flow/background'
import { VueFlow, useVueFlow } from '@vue-flow/core'
import { ref } from 'vue'
​
const elements = ref([
  {
    id: '1',
    type: 'input',
    label: 'Node <strong>A</strong>',
    position: { x: 250, y: 0 },
  },
  {
    id: '2',
    label: 'Node <strong>B</strong>',
    position: { x: 100, y: 100 },
  },
  {
    id: '3',
    label: 'Node <strong>C</strong>',
    position: { x: 400, y: 100 },
    style: { background: '#D6D5E6', color: '#333', border: '1px solid #222138', width: 180 },
  },
  { id: 'e1-2', source: '1', target: '2', label: 'Updateable edge', updatable: true },
])
​
const { updateEdge, addEdges } = useVueFlow()
​
function onEdgeUpdateStart(edge) {
  return console.log('start update', edge)
}
​
function onEdgeUpdateEnd(edge) {
  return console.log('end update', edge)
}
​
function onEdgeUpdate({ edge, connection }) {
  return updateEdge(edge, connection)
}
​
function onConnect(params) {
  return addEdges([params])
}
</script>
​
<template>
  <VueFlow
    v-model="elements"
    fit-view-on-init
    @edge-update="onEdgeUpdate"
    @connect="onConnect"
    @edge-update-start="onEdgeUpdateStart"
    @edge-update-end="onEdgeUpdateEnd"
  >
    <Background />
  </VueFlow>
</template>
​

Updatable Edge ​

Updatable Edge