Getting "intrinsic gas too low" when attempting to broadcast dynamic fee transaction

[jp-dakota]

Currently running Ganache via docker with latest tag using the command

docker run --rm -p 8545:8545 trufflesuite/ganache --deterministic --accounts 3 --defaultBalanceEther 1000

I calculate my gas fees as such

var gasPriceHex hexutil.Big
g.RPCClient.CallContext(ctx, &gasPriceHex, "eth_gasPrice")

var gasTipCapHex hexutil.Big
g.RPCClient.CallContext(ctx, &gasTipCapHex, "eth_maxPriorityFeePerGas")

metadata := &metadata{
	Nonce:     nonce,
	GasPrice:  (*big.Int)(&gasPriceHex),
	GasTipCap: (*big.Int)(&gasTipCapHex),
}

var block struct {
	BaseFeePerGas string
}
g.RPCClient.CallContext(ctx, &block, "eth_getBlockByNumber", "latest", true)
baseFeePerGas, _ := hexutil.DecodeBig(block.BaseFeePerGas)
metadata.GasFeeCap = new(big.Int).Add(metadata.GasTipCap, baseFeePerGas)

This producess the following, in Wei

1000000000000000000000 // balance
1000000000 // tipcap
2000000000 // feecap
2000000000 // gas

Error occurs when sending the raw transaction

$ curl -s -H 'Content-Type: application/json' --data '{"jsonrpc":"2.0", "id": 1, "method": "eth_sendRawTransaction", "params": [ "0xb86f02f86c8080843b9aca008477359400847735940094db055877e6c13b6a6b25abcaa29b393777dd0a737b80c080a006990b1f9f08a1f1e360206180fb3584b35f489cada9d38f2259c5b61876d23ba05fc29a930512688ba1009885e6ea7f24b8e67e391345f8a79785477e6f830684" ] }' http://localhost:8545 | jq

{
  "id": 1,
  "jsonrpc": "2.0",
  "error": {
    "message": "intrinsic gas too low",
    "stack": "Error: intrinsic gas too low\n    at TransactionPool.<anonymous> (/app/dist/node/1.js:2:120585)\n    at TransactionPool.prepareTransaction (/app/dist/node/1.js:2:120796)\n    at TransactionManager.add (/app/dist/node/1.js:2:138284)\n    at Blockchain.queueTransaction (/app/dist/node/1.js:2:70776)\n    at EthereumApi.eth_sendRawTransaction (/app/dist/node/1.js:2:88213)\n    at EthereumApi.n.value (/app/dist/node/1.js:2:238968)\n    at Object.execute (/app/dist/node/1.js:2:165607)\n    at RequestCoordinator.<anonymous> (/app/dist/node/1.js:2:165421)\n    at /app/dist/node/1.js:2:165687\n    at new Promise (<anonymous>)",
    "code": -32000
  }
}

Thank you in advance!

[jp-dakota]

For future reference, I found the issue. Important note, the error message is completely misleading!

Pointing the code at a testnet node, the actual error you get back is rlp: expected input list for types.LegacyTx (if you're using go-ethereum).

This issue, specific to go-ethereum fixes it. This may be go-specific thing, but the error message, nonetheless, was not helpful at all.