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The DZap SDK provides functionality to request zap quotes for complex DeFi operations. This guide will walk you through the process of making a request using getZapQuote.

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How to Request Zap Quotes

To get started, here is a simple example of how to request a quote for zapping 1 USDC into a yield-bearing position on Arbitrum. 
import { DZapClient } from "@dzap/sdk";

const dZap = DZapClient.getInstance();

const zapQuoteRequest: ZapQuoteRequest = {
  srcChainId: 42161, // Arbitrum
  destChainId: 42161, // Same chain for simplicity
  account: userAccount,
  srcToken: "0xaf88d065e77c8cC2239327C5EDb3A432268e5831", // USDC
  destToken: "0x724dc807b04555b71ed48a6896b6F41593b8C637", // Aave USDC
  amount: "1000000", // 1 USDC (6 decimals)
  recipient: userAccount,
  slippage: 1, // 1% slippage
};

const zapQuote = await dZap.getZapQuote(zapQuoteRequest);
console.log("Zap quote:", zapQuote);
When you request zap quotes, you receive an object containing the essential information to determine the best path for complex DeFi operations. At this stage, transaction data is not included and must be requested separately using buildZapTxn.

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Zap Quote Request Parameters

The getZapQuote function expects a ZapQuoteRequest object, which specifies a desired zap operation and includes all the information needed to calculate the most efficient route.

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Request Parameters

ParameterTypeRequiredDescription
srcChainIdnumberyesSource chain ID where the operation begins
destChainIdnumberyesDestination chain ID where the operation completes
accountstringyesUser’s wallet address
srcTokenstringyesSource token contract address
destTokenstringyesDestination token or protocol address
amountstringnoAmount to zap in smallest token unit (not needed for NFTs)
recipientstringyesAddress to receive the final tokens/positions
slippagenumberyesSlippage tolerance as percentage

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Understanding the Response

The response contains detailed information about the zap route: 
type ZapQuoteResponse = {
  amountOut: string; // Expected final output amount
  approvalData?: {
    approveTo: string; // Address to approve for spending
    callTo: string; // Token contract address to call for approval
    amount: string; // Amount to approve in token units
  };
  path: ZapPath[]; // Array of steps in the zap operation
};

type ZapPath = {
  action: string; // Type of action (swap, deposit, stake, etc.)
  protocol: {
    name: string; // Protocol name
    id: string; // Protocol identifier
    icon: string; // Protocol icon URL
  };
  input: Array<{
    amount: string; // Input amount in token units
    amountUSD: string; // USD value of input
    asset: ZapPathAsset; // Asset details
  }>;
  output: Array<{
    amount: string; // Output amount in token units
    minReturn: string; // Minimum guaranteed return amount
    amountUSD: string; // USD value of output
    asset: ZapPathAsset; // Asset details
  }>;
  fee: ZapFee[]; // Fees for this step
  estimatedDuration: number; // Time estimate in seconds
  dust: any[]; // Dust amounts (if any)
};

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Key Response Fields

  • amountOut - The expected final output amount from the zap
  • approvalData - Token approval information (if approval is required)
  • path - Array of steps that will be executed in the zap operation
  • path[].action - The type of operation (swap, deposit, withdraw, etc.)
  • path[].protocol - Information about the protocol used for this step
  • path[].input/output - Detailed asset information including amounts and USD values
  • path[].fee - Fee breakdown for each step
  • path[].estimatedDuration - Expected time for this step to complete

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Working with Zap Quote Results

const zapQuote = await dZap.getZapQuote(zapQuoteRequest);

// Check if approval is needed
if (zapQuote.approvalData) {
  console.log("Approval required:");
  console.log(
    `Approve ${zapQuote.approvalData.amount} tokens to ${zapQuote.approvalData.approveTo}`
  );
}

// Examine the path
console.log("Zap will execute", zapQuote.path.length, "steps:");

zapQuote.path.forEach((step, index) => {
  console.log(`\nStep ${index + 1}: ${step.action}`);
  console.log(`Protocol: ${step.protocol.name}`);

  // Show input details
  step.input.forEach((input, inputIndex) => {
    console.log(
      `Input ${inputIndex + 1}: ${input.amount} ${input.asset.symbol} ($${
        input.amountUSD
      })`
    );
  });

  // Show output details
  step.output.forEach((output, outputIndex) => {
    console.log(
      `Output ${outputIndex + 1}: ${output.amount} ${output.asset.symbol} ($${
        output.amountUSD
      })`
    );
    if (output.minReturn) {
      console.log(`Minimum return: ${output.minReturn} ${output.asset.symbol}`);
    }
  });

  console.log(`Estimated duration: ${step.estimatedDuration}s`);

  // Show fees if any
  if (step.fee.length > 0) {
    const stepFees = step.fee.reduce(
      (acc, fee) => acc + parseFloat(fee.amountUSD),
      0
    );
    console.log(`Step fees: $${stepFees.toFixed(5)}`);
  }
});

// Calculate total fees across all steps
const totalFees = zapQuote.path.reduce((acc, step) => {
  return (
    acc +
    step.fee.reduce(
      (stepTotal, fee) => stepTotal + parseFloat(fee.amountUSD),
      0
    )
  );
}, 0);

// Calculate total duration
const totalDuration = zapQuote.path.reduce(
  (acc, step) => acc + step.estimatedDuration,
  0
);

console.log(`\nSummary:`);
console.log(`Expected output: ${zapQuote.amountOut}`);
console.log(`Total fees: $${totalFees.toFixed(5)}`);
console.log(`Total duration: ${totalDuration}s`);

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Advanced Examples

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Cross-Chain Liquidity Provision

// Bridge USDC from Ethereum to Arbitrum and provide liquidity to Uniswap V3
const crossChainLpQuote = await dZap.getZapQuote({
  srcChainId: 8453, // Base
  destChainId: 42161, // Arbitrum
  account: userAddress,
  srcToken: "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", // USDC on Ethereum
  destToken: "0xC6962004f452bE9203591991D15f6b388e09E8D0", // Uniswap V3 ETH/USDC LP
  amount: "1000000000", // 1000 USDC
  recipient: userAddress,
  slippage: 2, // Higher slippage for cross-chain
});

console.log("Cross-chain LP quote received:");
console.log(`Expected LP tokens: ${crossChainLpQuote.amountOut}`);
console.log(`Steps required: ${crossChainLpQuote.path.length}`);

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Next Steps

Once you have received a zap quote, you can proceed to:
  1. Execute the zap transaction on the blockchain
  2. Track the status of your zap
Before executing zaps, tokens typically require approval to allow the DZap contracts to spend them on your behalf. Learn more about gas-optimized approval mechanisms in the Approval Mechanisms section.
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