Contract Source Code (Solidity Standard Json-Input format)

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

interface IQuoter {
    struct QuoteExactInputSingleParams {
        address tokenIn;
        address tokenOut;
        uint256 amountIn;
        uint160 limitSqrtPrice;
    }

    function quoteExactInputSingle(
        QuoteExactInputSingleParams calldata params
    ) external returns (uint256 amountOut);
}

contract UsdcQuote {
    // The Quoter contract implementing quoteExactInputSingle
    address public constant QUOTER_ADDRESS = 0xd74a9Bd1C98B2CbaB5823107eb2BE9C474bEe09A; 
    
    // Hard-coded output token address:
    address public constant TOKEN_OUT_ADDRESS = 0x29219dd400f2Bf60E5a23d13Be72B486D4038894;

    // Hard-coded amountIn = 1 * 10^18
    uint256 public constant AMOUNT_IN = 1000000000000000000;

    IQuoter public quoter;

    constructor() {
        // Initialize the quoter interface
        quoter = IQuoter(QUOTER_ADDRESS);
    }

    /**
     * @dev Calls the quoter contract's `quoteExactInputSingle`
     *      with tokenOut set to TOKEN_OUT_ADDRESS and amountIn set to 1e18.
     *
     * @param tokenIn    The address of the input token
     * @return amountOut The quoted amount of TOKEN_OUT_ADDRESS received
     */
    function getQuoteFixedSingle(address tokenIn) external returns (uint256 amountOut) 
    {
        // Prepare the params struct
        IQuoter.QuoteExactInputSingleParams memory params = IQuoter.QuoteExactInputSingleParams({
            tokenIn: tokenIn,
            tokenOut: TOKEN_OUT_ADDRESS, 
            amountIn: AMOUNT_IN,
            limitSqrtPrice: 0
        });

        // Call the quoter contract and return the amountOut
        amountOut = quoter.quoteExactInputSingle(params);
        return amountOut;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AMOUNT_IN","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"QUOTER_ADDRESS","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"TOKEN_OUT_ADDRESS","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"tokenIn","type":"address"}],"name":"getQuoteFixedSingle","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"quoter","outputs":[{"internalType":"contract IQuoter","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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