eth_sendRawTransaction | Ethereum

const ethers = require("ethers");

// Create a ChainstackProvider instance for Ethereum mainnet
const chainstack = new ethers.ChainstackProvider("mainnet");

const ethers = require('ethers');
const NODE_URL = "CHAINSTACK_NODE_URL";
const provider = new ethers.JsonRpcProvider(NODE_URL);

async function sendEth(value) {

  // Define the sender and receiver addresses, and the private key
	const sender = '0x19e7e376e7c213b7e7e7e46cc70a5dd086daff2a';
  const receiver = '0xe9ba4b4d84d7a3c80245514213b88d50ed937114';
  const privateKey = '1111111111111111111111111111111111111111111111111111111111111111';
  
  // Define the gas limit
  const gasLimit = await provider.estimateGas({
    from: sender,
    to: receiver,
    value: ethers.parseEther(value),
  });

  // Get the transaction count for the sender address
  const nonce = await provider.getTransactionCount(sender);

  // Define the transaction object
  const transactionObject = {
    to: receiver,
    gasPrice: ethers.parseUnits('50', 'gwei'),
    gasLimit: gasLimit.toString(),
    nonce: nonce,
    value: ethers.parseEther(value),
  };

  // Sign the transaction using the private key  
  const wallet = new ethers.Wallet(privateKey, provider);
  console.log(`Sending transaction...`)
  
  const transaction = await wallet.sendTransaction(transactionObject);
  console.log('Transaction hash:', transaction.hash);
}

sendEth("2");

const { Web3 } = require("web3");

// Initialize Web3 instance using a provider
const web3 = new Web3(
  new Web3.providers.HttpProvider("YOUR_CHAINSTACK_RPC_NODE")
);

/**
 * Sends a specified amount from a given account to another.
 *
 * @param {string} secretKey The private key of the sender's account.
 * @param {string} to The recipient address.
 * @param {string} amount The amount to send in Ether.
 */
async function sendAmount(secretKey, to, amount) {
  const account = web3.eth.accounts.privateKeyToAccount(secretKey);
  web3.eth.accounts.wallet.add(account);
  const senderAddress = account.address;
  console.log(
    `Attempting to send ${amount} ETH from ${senderAddress} to ${to}`
  );

  const MAX_RETRIES = 3; // Maximum number of retries
  const COOLDOWN = 5000; // Time waited between retries in ms

  let retries = 0; // Initialize retry counter

  async function sendTransaction() {
    try {
      const balance = await web3.eth.getBalance(senderAddress);
      console.log(
        `Current balance: ${web3.utils.fromWei(balance, "ether")} ETH`
      );

      const gasPrice = await web3.eth.getGasPrice();
      console.log(
        `Current gas price: ${web3.utils.fromWei(gasPrice, "gwei")} Gwei`
      );

      const gasLimit = await web3.eth.estimateGas({
        from: senderAddress,
        to: to,
        value: web3.utils.toWei(amount, "ether"),
      });
      console.log(`Estimated gas limit: ${gasLimit}`);

      const gasCost = BigInt(gasPrice) * BigInt(gasLimit);
      console.log(
        `Estimated gas cost: ${web3.utils.fromWei(
          gasCost.toString(),
          "ether"
        )} ETH`
      );

      const amountToSend = web3.utils.toWei(amount, "ether");
      const totalCost = BigInt(amountToSend) + gasCost;

      if (BigInt(balance) >= totalCost) {
        console.log(`Amount to send: ${amount} ETH`);

        const transaction = {
          to: to,
          value: amountToSend,
          gas: gasLimit,
          gasPrice: gasPrice,
          nonce: await web3.eth.getTransactionCount(senderAddress, "latest"),
        };

        console.log("Signing transaction...");
        const signedTx = await account.signTransaction(transaction);

        console.log("Transaction signed. Sending...");
        const receipt = await web3.eth.sendSignedTransaction(
          signedTx.rawTransaction
        );

        console.log(
          `Transaction successful with hash: ${receipt.transactionHash}`
        );
        console.log(
          `Find the transaction in the explorer: https://sepolia.etherscan.io/tx/${receipt.transactionHash}`
        );
      } else {
        console.log(
          "Not enough balance to cover the transaction cost. Transaction aborted."
        );
      }
    } catch (error) {
      console.error(`Failed to send transaction: ${error.message}`);

      if (retries < MAX_RETRIES) {
        retries++;
        console.log(`Retrying... (${retries}/${MAX_RETRIES})`);
        await new Promise((resolve) => setTimeout(resolve, COOLDOWN)); // Wait for 5 seconds before retrying
        await sendTransaction(); // Retry the transaction
      } else {
        console.error("Maximum retries reached. Giving up.");
      }
    }
  }

  await sendTransaction();
}

// Replace with your secret key, recipient address, and the amount to send
const secretKey = "0x_YOUR_PRIVATE_KEY";
const recipientAddress = "DESTINATION_ADDRESS";
const amountToSend = "1.0"; // Amount in Ether

sendAmount(secretKey, recipientAddress, amountToSend);

from web3 import Web3  
node_url = "CHAINSTACK_NODE_URL"
web3 = Web3(Web3.HTTPProvider(node_url)) 

# Define the sender and receiver addresses, and the private key
sender = '0x19e7e376e7c213b7e7e7e46cc70a5dd086daff2a' 
receiver = '0xe9ba4b4d84d7a3c80245514213b88d50ed937114' 
private_key = '1111111111111111111111111111111111111111111111111111111111111111'   

# Estimate gas limit
gas_limit = web3.eth.estimate_gas({
  'from': sender,
  'to': receiver
})

# Build the transaction object
transaction = {
  'nonce': web3.eth.get_transaction_count(sender),
  'to': receiver,
  'value': web3.to_wei(1, 'ether'), # value to send 
  'gas': gas_limit,
  'gasPrice': web3.eth.gas_price,
  'chainId': web3.eth.chain_id
}

# Sign the transaction
signed_tx = web3.eth.account.sign_transaction(transaction, private_key)
print(f'Signed transaction: {signed_tx}')

# Send the transaction
print('Sending transaction...')
tx_hash = web3.eth.send_raw_transaction(signed_tx.rawTransaction)
print(f'Transaction hash: {web3.toHex(tx_hash)}')

const ethers = require("ethers");

// Create a ChainstackProvider instance for Ethereum mainnet
const chainstack = new ethers.ChainstackProvider("mainnet");

// ABI for the swapExactETHForTokens function
const sushiRouterABI = [
  {
     "inputs":[
        {
           "internalType":"uint256",
           "name":"amountOutMin",
           "type":"uint256"
        },
        {
           "internalType":"address[]",
           "name":"path",
           "type":"address[]"
        },
        {
           "internalType":"address",
           "name":"to",
           "type":"address"
        },
        {
           "internalType":"uint256",
           "name":"deadline",
           "type":"uint256"
        }
     ],
     "name":"swapExactETHForTokens",
     "outputs":[
        {
           "internalType":"uint256[]",
           "name":"amounts",
           "type":"uint256[]"
        }
     ],
     "stateMutability":"payable",
     "type":"function"
  }
]

async function swapETHForToken(value, token, privateKey) {
  // Create a new wallet using the private key
  const wallet = new ethers.Wallet(privateKey, provider);

  // Get the SushiSwap Router contract and create a contract instance
  const sushiRouterAddress = '0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506'; // SushiSwap Router address on Ethereum Mainnet
  const sushiRouterContract = new ethers.Contract(sushiRouterAddress, sushiRouterABI, wallet);

  // Prepare the swap parameters
  const tokenToBuy = token;
  const amountOfETH = ethers.parseEther(value); // Convert the input value to Wei
  const minAmountOfTokens = ethers.parseUnits('0'); // Set the minimum output token amount to 0, this means that you will always receive something. 
  const deadline = Math.floor(Date.now() / 1000) + 60 * 10; // Set the deadline to 10 minutes from now

  // Define the token path for the swap
  const path = ['0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2', tokenToBuy]; // WETH to token to buy

  // Parameters for the transaction object
  const nonce = await wallet.getTransactionCount();
  const gasPrice = await chainstack.getGasPrice();
  const transactionData = sushiRouterContract.interface.encodeFunctionData('swapExactETHForTokens', [
    minAmountOfTokens,
    path,
    wallet.address,
    deadline
  ]);

  // Calculate the gas limit based on the parameters
  const gasLimit = await chainstack.estimateGas({to: sushiRouterAddress, value: amountOfETH, data: transactionData});

  // Get the chain ID for replay-protected (EIP-155) transactions
  const chainId = await chainstack.getNetwork().then(network => network.chainId);

  // Build the transaction object
  const transactionObject = {
    to: sushiRouterAddress,
    value: amountOfETH,
    nonce: nonce,
    gasPrice: gasPrice,
    gasLimit: gasLimit,
    data: transactionData,
    chainId: chainId
  };

  // Sign and send the transaction
  console.log(`Swapping tokens...`);
  const signedTx = await wallet.signTransaction(transactionObject);
  const transaction = await chainstack.sendTransaction(signedTx);
  console.log(`Transaction sent; transaction hash: ${transaction.hash}\n`);

  // Wait for the transaction to be confirmed
  console.log(`Validating transaction...`);
  const receipt = await transaction.wait();
  return receipt
}

async function main() {
  try {
    // Set the swap parameters and private key
    const quantity = '0.2'; // Amount of ETH to swap
    const addressToBuy = '0x7Fc66500c84A76Ad7e9c93437bFc5Ac33E2DDaE9'; // Address of the token to buy (AAVE in this case)
    const privateKey = '1111111111111111111111111111111111111111111111111111111111111111'; // Replace with your actual private key

    // Execute the swap and check if successful
    const receipt = await swapETHForToken(quantity, addressToBuy, privateKey);
    
    if (receipt.status === 1) {
      console.log(`The swap was successful!`);
      console.log(`Transaction receipt`, receipt);
      
    } else {
      console.log(`The swap failed with status ${receipt.status}.`);
    }
  } catch (error) {
    console.error(`An error occurred during the swap: ${error.message}`);
  }
}


main();