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The onSwapIdChange event is called when the swap ID changes — for example, when a new swap is created or reset. 
<LayerswapProvider
  callbacks={{
    onSwapIdChange: (swapId) => {
      console.log("Active swap ID:", swapId)
    },
  }}
>
  <Swap />
</LayerswapProvider>

​
Callback Argument Value

swapId: string