Layerswap Docs

The onFormChange event fires whenever the user modifies the swap form — for example, when changing the asset, amount, or destination network.

<LayerswapWidget
  config={widgetConfig}
  callbacks={{
    onFormChange: (formData) => {
      console.log("Form updated:", formData)
    },
  }}
/>

Callback Argument Value

formData: {
  from?: string;
  to?: string;
  fromAsset?: string;
  toAsset?: string;
  amount?: string;
  destination_address?: string;
  refuel?: boolean;
}