Collateral Swap - Enso Developer Documentation

Note on Routing Strategy: Collateral swaps use routingStrategy: "delegate", so the new collateral is deposited from the user’s own account. With router, the new collateral would be left in the shared Enso contract, and the API rejects the bundle.

To swap the collateral, we need four actions:

redeem a part of exising WETH collateral for the aWETH position
route to swap the redeemed collateral (WETH) to a different position (WBTC)
deposit the swapped position (WBTC) as collateral for the existing debt
slippage to check the received aWBTC amount against 0.5% slippage

const fromAddress = "0xd8da6bf26964af9d7eed9e03e53415d37aa96045" as Address;
const aWETH = "0x4d5F47FA6A74757f35C14fD3a6Ef8E3C9BC514E8";
const WETH = "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2";
const WBTC = "0x2260fac5e5542a773aa44fbcfedf7c193bc2c599";
const aWBTC = "0x5Ee5bf7ae06D1Be5997A1A72006FE6C607eC6DE8";

// aave v3 position manager
const AAVE_V3 = "0x87870Bca3F3fD6335C3F4ce8392D69350B4fA4E2";

const bundle = await client.getBundleData(
  {
    chainId: 1,
    fromAddress,
    routingStrategy: "delegate",
  },
  [
    {
      protocol: "aave-v3",
      action: "redeem",
      args: {
        primaryAddress: AAVE_V3,
        tokenIn: aWETH,
        tokenOut: WETH,
        amountIn: "1000000000000000000",
      },
    },
    {
      protocol: "enso",
      action: "route",
      args: {
        tokenIn: WETH,
        tokenOut: WBTC,
        amountIn: { useOutputOfCallAt: 0 },
      },
    },
    {
      protocol: "aave-v3",
      action: "deposit",
      args: {
        primaryAddress: AAVE_V3,
        tokenIn: WBTC,
        tokenOut: aWBTC,
        amountIn: { useOutputOfCallAt: 1 },
      },
    },
    {
      protocol: "enso",
      action: "slippage",
      args: {
        amountOut: { useOutputOfCallAt: 2 },
        bps: "50",
      },
    },
  ],
);
console.log(JSON.stringify(bundle, null, 2));