wallet.sendTransaction(tx) defaults to wrong chainID

[AntonStrickland]

My attempt to send a transaction:

        const provider = new ethers.providers.JsonRpcProvider("https://rinkeby.infura.io/v3/key");
        var wallet = await ethers.Wallet.fromEncryptedJson(jsondata, password);
        wallet = newWallet.connect(provider);

        const tx = {
            to: recipient,
            value: ethers.utils.parseEther("0.0123")
          }

        const result = await wallet.sendTransaction(tx);
        console.log(result);

The above code results in this error:

Uncaught (in promise) Error: insufficient funds for intrinsic transaction cost (error={"reason":"processing response error","code":"SERVER_ERROR","body":"{\"jsonrpc\":\"2.0\",\"id\":56,\"error\":{\"code\":-32000,\"message\":\"insufficient funds for transfer\"}}"

You can see that it says the chainID is 56, so it's trying to send from the wrong chain which makes it think it doesn't have enough to send. Changing the tx to the following results in a successful transaction:

        const nonce = await wallet.getTransactionCount();
        const feeData = await wallet.getFeeData();
        const tx = {
            to: recipient,
            value: ethers.utils.parseEther("0.0123"),
            gasLimit: 10000000,
            maxFeePerGas : feeData.maxFeePerGas,
            maxPriorityFeePerGas : feeData.maxPriorityFeePerGas,
            nonce: nonce,
            chainId: 4,
          }

[ricmoo]

That id is the JSON-RPC request ID, which is completely unrelated to the chain ID.

My guess would be the gasLimit is the important thing missing; is the recipient a contract? The implicit call to estimate the gas may be returning a value such that the intrinsic cost exceeds the funds the wallet has. What do you get as a result is estimateGas for that tx?

[AntonStrickland]

Hi, I see... I guess that was just a coincidence then. The address was not a contract. Gas estimate was 21000 (0x5208). However I can't seem to duplicate the issue anymore for some reason. Both my examples of code I posted above suddenly work now, so who knows what I was doing wrong before. Thank you for the help though.