Uniswap Dai getAmountsOut 返回 0

我正在嘗試獲得 100 dai 可以獲得的 WETH 數量：

uniswapController.sol

contract UniswapController {
   address internal constant UNISWAP_ROUTER_ADDRESS = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;

   IUniswapV2Router02 public uniswapRouter;

   constructor() public {
       uniswapRouter = IUniswapV2Router02(UNISWAP_ROUTER_ADDRESS);
   }

   function getAmountsOut(uint fundingamount, address[] memory path) public view returns (uint[] memory) {
       return uniswapRouter.getAmountsOut(fundingamount, path);     
   }

js客戶端程式碼：

dai.address = 0x6B175474E89094C44Da98b954EedeAC495271d0F;
ethereum.address = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;

let amounts = await uniswapController.getAmountsOut(100, [dai.address, ethereum.address]);

let daioutput = amounts[0].toNumber();
let ethereumoutput = amounts[1].toNumber();

console.log("Dai output:", daioutput); // returns 100
console.log("ethereum output:", ethereumoutput); // returns 0

如何以 100 dai 而不是 0 返還我可以收到的任何部分 WETH？

您應該將 100 轉換為 WEI。

如果你使用 web3.js，你可以這樣做

web3.utils.toWei(100);

引用自：https://ethereum.stackexchange.com/questions/102069