mintBot.html

---
layout: default
---

<div class="container">
  <h1>Mint Bot</h1>

  <div id="wallet"></div>

  <div class="p-5 mb-4 bg-light rounded-3" id="startForn">
    <div class="container-fluid py-5">
      <div class="form-group row">
        <label for="watchedVar" class="col-sm-2 col-form-label">Watched Variable</label>
        <div class="col-sm-10">
          <input type="text" class="form-control" id="watchedVar" value="publicSaleActive" required>
        </div>
      </div>
      <div class="form-group row">
        <label for="targetVal" class="col-sm-2 col-form-label">Target Value</label>
        <div class="col-sm-10">
          <input type="text" class="form-control" id="targetVal" value="true" required>
        </div>
      </div>
      <div class="form-group row">
        <label for="mintFunction" class="col-sm-2 col-form-label">Mint Function Name</label>
        <div class="col-sm-10">
          <input type="text" class="form-control" id="mintFunction" value="mint" required>
        </div>
      </div>
      <div class="form-group row">
        <label for="pricePerNft" class="col-sm-2 col-form-label">Price Per NFT (ETH)</label>
        <div class="col-sm-10">
          <input type="text" class="form-control" id="pricePerNft" value="0.01" required>
        </div>
      </div>
      <div class="form-group row">
        <label for="nbNftsToMint" class="col-sm-2 col-form-label">How Many to Mint</label>
        <div class="col-sm-10">
          <input type="text" class="form-control" id="nbNftsToMint" value="1" required>
        </div>
      </div>
      <div class="form-group row">
        <label for="maxBaseGasGwei" class="col-sm-2 col-form-label">Max Base Gas (Gwei)</label>
        <div class="col-sm-10">
          <input type="text" class="form-control" id="maxBaseGasGwei" value="75" required>
        </div>
      </div>
      <div class="form-group row">
        <label for="extraGasGwei" class="col-sm-2 col-form-label">Extra Gas (Gwei)</label>
        <div class="col-sm-10">
          <input type="text" class="form-control" id="extraGasGwei" value="5" required>
        </div>
      </div>
      <div class="form-group row">
        <label for="priorityFeeGwei" class="col-sm-2 col-form-label">Priority fee (Gwei)</label>
        <div class="col-sm-10">
          <input type="text" class="form-control" id="priorityFeeGwei" value="2" required>
        </div>
      </div>
      <div class="form-group row">
        <label for="minBalanceETH" class="col-sm-2 col-form-label">Minimum Balance (ETH)</label>
        <div class="col-sm-10">
          <input type="text" class="form-control" id="minBalanceETH" value="0.01" required>
        </div>
      </div>
      <div class="form-group row">
        <label for="contractAddress" class="col-sm-2 col-form-label">Contract Address</label>
        <div class="col-sm-10">
          <input type="text" class="form-control" id="contractAddress" value="" required>
        </div>
      </div>

      <hr/>
      <button id="startButton" class="btn btn-primary btn-lg" type="button">Start</button>
    </div>
  </div>



</div>

{% include jquery.html %}

<script type="module">
  import { ethers } from "./assets/ethers-5.4.esm.min.js";

  async function startBot() {

    $("#startForn").hide();

    // Config
    const watchedVar = $("#watchedVar").val()
    const targetVal = ($("#watchedVar").val() == "true") ? true : ($("#watchedVar").val() == "false") ? false : $("#watchedVar").val()
    const mintFunction = $("#mintFunction").val()
    const pricePerNft = $("#pricePerNft").val()
    const nbNftsToMint = $("#nbNftsToMint").val()

    const maxBaseGasGwei = $("#maxBaseGasGwei").val()
    const extraGasGwei = $("#extraGasGwei").val()
    const priorityFeeGwei = $("#priorityFeeGwei").val()
    const minBalanceETH = $("#minBalanceETH").val()

    // Provider
    const provider = new ethers.providers.Web3Provider(window.ethereum)

    // Signer
    await provider.send("eth_requestAccounts", [])
    const signer = provider.getSigner()

    const balance = await signer.getBalance()
    const address = await signer.getAddress()
    $("#wallet").html("<p>" + address + " " + balance + "</p>")

    // Contract - 0xf7479F9527c57167caff6386DAA588B7BF05727f
    const contractAddress = $("#contractAddress").val()
    $.ajax({
      dataType: "json",
      url: "https://api.etherscan.io/api?module=contract&action=getabi&address=" + contractAddress,
      success: function(result) {
        const contractABI = result.result;
        const mintContract = new ethers.Contract(contractAddress, contractABI, signer);

        let id = setInterval(botLoop, 10000, mintContract, watchedVar, targetVal, mintFunction, pricePerNft, nbNftsToMint, maxBaseGasGwei, extraGasGwei, priorityFeeGwei, minBalanceETH);  // Start loop every 10 seconds
      }
    });
    
  }

  async function botLoop(mintContract, watchedVar, targetVal, mintFunction, pricePerNft, nbNftsToMint, maxBaseGasGwei, extraGasGwei, priorityFeeGwei, minBalanceETH) {

    const currentValue = await mintContract[watchedVar]();
    if (currentValue == targetVal) {
      const balance = await signer.getBalance()
      if (Number(ethers.utils.formatEther(balance)) > Number(minBalanceETH)) {
        const gasPrice = await ........................
        if (Number(ethers.utils.formatUnits(gasPrice, "gwei")) < Number(maxBaseGasGwei)) {
          const extraGas = Number(ethers.utils.formatUnits(gasPrice, "gwei")) + Number(extraGwei)
          const priceTotal = String(Number(pricePerNft) * Number(nbNftsToMint))

          let transaction = {
            value: ethers.utils.parseEther(priceTotal),
            maxPriorityFeePerGas: ethers.utils.parseUnits(priorityFeeGwei, "gwei"),
            maxFeePerGas: ethers.utils.parseUnits(extraGas.toFixed(9), "gwei"),
            type: 2
          }

          // Estimate Gas
          const gasLimit = await mintContract.estimateGas[mintFunction](nbNftsToMint, transaction)

          if (gasLimit) {
            console.log("MINT!! - Gas: " + ethers.utils.formatUnits(gasPrice, "gwei") + " Gwei")
            clearInterval(id)  // Stop loop - but keep going below..

            // Mint!!
            //const tx = await mintContract[mintFunction](nbNftsToMint, transaction)
            //await tx.wait()

            console.log("Done!", tx)
          }
          
        } else {
          console.log("Gas too high: " + ethers.utils.formatUnits(gasPrice, "gwei") + " Gwei")
        }
      } else {
        console.log("Not enough ETH: " + ethers.utils.formatEther(balance) + " Eth")
        clearInterval(id)  // Stop loop
      }
    } else {
      console.log("currentValue: " + currentValue)
    }

  }

  $(document).ready(function() {
    $("#startButton").click(function() {  
      startBot()
    });
  });

</script>