quicknode-common-errors

# QuickNode Common Errors ## Overview Quick reference for the top blockchain RPC errors when using QuickNode endpoints with ethers.js or viem. ## Prerequisites - QuickNode endpoint configured - ethers.js or viem installed ## Instructions ### Error 1: Nonce Too Low ``` Error: nonce has already been used (error={"code":-32000,"message":"nonce too low"}) ``` **Fix:** ```typescript // Get the correct nonce before sending const nonce = await provider.getTransactionCount(wallet.address, 'pending'); const tx = await wallet.sendTransaction({ ...txData, nonce }); ``` ### Error 2: Insufficient Funds ``` Error: insufficient funds for intrinsic transaction cost ``` **Fix:** ```typescript const balance = await provider.getBalance(wallet.address); const gasEstimate = await provider.estimateGas(txData); const feeData = await provider.getFeeData(); const totalCost = gasEstimate * feeData.gasPrice! + txData.value; if (balance < totalCost) { console.error(`Need ${ethers.formatEther(totalCost)} ETH, have ${ethers.formatEther(balance)}`); } ``` ### Error 3: Gas Estimation Failed (Call Revert) ``` Error: execution reverted (reason="ERC20: transfer amount exceeds balance") ``` **Fix:** The contract function would revert. Check contract requirements: ```typescript try { const gas = await contract.transfer.estimateGas(to, amount); } catch (err) { console.error('Revert reason:', err.reason); // Check: sufficient token balance, approvals, contract state } ``` ### Error 4: Rate Limited (...