Gas fees on Shibarium, like other EVM-compatible chains, fluctuate based on network congestion and transaction complexity. Underestimating gas can cause delays or failed transactions.

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Gas Estimation Process

1

Estimate Gas Consumption

Use the eth_estimateGas RPC method to estimate the gas units required for your transaction.
const gasEstimate = await web3.eth.estimateGas({
  from: "0xYourAddress",
  to: "0xContractAddress",
  data: "0xFunctionCallData",
});
console.log(`Estimated Gas: ${gasEstimate}`);
For contract methods, use the contract’s estimateGas function for more accuracy:
const gasEstimate = await myContract.methods.myMethod(123).estimateGas({
  from: '0xYourAddress'
});
console.log(`Gas Estimate: ${gasEstimate}`);
2

Fetch Current Gas Prices

Query the network’s gas price using eth_gasPrice or eth_feeHistory for EIP-1559-compatible fee structures.
const gasPrice = await web3.eth.getGasPrice();
console.log(`Current Gas Price: ${gasPrice}`);
3

Add a Buffer

Add a 10–20% buffer to your gas estimate to account for network fluctuations.
const gasLimitWithBuffer = Math.ceil(gasEstimate * 1.2); // 20% buffer
4

Submit the Transaction

Use the calculated gas values when sending your transaction.
const tx = await web3.eth.sendTransaction({
  from: "0xYourAddress",
  to: "0xContractAddress",
  value: web3.utils.toWei("0.1", "ether"),
  gas: gasLimitWithBuffer,
  gasPrice: gasPrice,
});
console.log(`Transaction Hash: ${tx.transactionHash}`);
For advanced use cases, such as batch processing or dynamic fee adjustments, use eth_feeHistory, monitor mempool activity, or leverage third-party APIs for predictive fee estimation.

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Troubleshooting Stuck Transactions

A common issue is transactions getting stuck due to low gas fees. If your transaction is pending for too long, you must resubmit it with the same nonce and a higher gas price.
Do not submit a new transaction with a different nonce. Only the original nonce will be processed until resolved.

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How to Resubmit a Stuck Transaction

const tx = {
  nonce: web3.utils.toHex(5), // Use the stuck transaction's nonce
  to: '0xContractAddress',
  value: web3.utils.toWei('0.1', 'ether'),
  gas: web3.utils.toHex(21000),
  gasPrice: web3.utils.toHex(web3.utils.toWei('50', 'gwei')) // Set a higher gas price
};

const signedTx = await web3.eth.accounts.signTransaction(tx, 'PRIVATE_KEY');
const receipt = await web3.eth.sendSignedTransaction(signedTx.rawTransaction);
console.log(`Transaction Hash: ${receipt.transactionHash}`);
With the right approach, you can ensure smooth and cost-effective operations on Shibarium.
Gas fees change based on network congestion and transaction complexity. During high demand, fees increase to prioritize transactions.
Your transaction may be delayed or remain pending. Validators prioritize transactions with higher fees.
Use on-chain data APIs, block explorers, or third-party services to track real-time gas prices.
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