Log simulation errors

[yawhide]

Partially fixes #24

Log simulation errors

Took code from flashbot's example https://github.com/flashbots/ethers-provider-flashbots-bundle/blob/master/src/demo.ts#L99

[yawhide]

@xrchz do you have an easy way to test this without rocketpool node deposit?

[xrchz]

Thanks for this! I have a pending deposit I can test with, but need to wait for the deposit pool to not be overfull, since otherwise it errors out before getting to the simulation.

[xrchz]

I tried it and got this

Simulation results: {
  "bundleGasPrice": {
    "type": "BigNumber",
    "hex": "0x05f5e100"
  },
  "bundleHash": "0x76214368419040f1f463fa2c3c2e357abd60d6247ed30263990cab3caf0f7d1f",
  "coinbaseDiff": {
    "type": "BigNumber",
    "hex": "0x7ea3cdf2a400"
  },
  "ethSentToCoinbase": {
    "type": "BigNumber",
    "hex": "0x00"
  },
  "gasFees": {
    "type": "BigNumber",
    "hex": "0x7ea3cdf2a400"
  },
  "results": [
    {
      "txHash": "0x70cfbdca2b8513086caa5ec9f22fd8130eb28824fd9a8731c926a1de02f5a30b",
      "gasUsed": 1235773,
      "gasPrice": "100000000",
      "gasFees": "123577300000000",
      "fromAddress": "0xa4186193281f7727C070766ba60B63Df74eA4Da1",
      "toAddress": "0x2FB42FfE2d7dF8381853e96304300c6a5E846905",
      "coinbaseDiff": "123577300000000",
      "ethSentToCoinbase": "0",
      "value": "0x"
    },
    {
      "txHash": "0x428683ddcdf4b7e2f4468b1c7c223d66cb141fc9fb4072250be0352c353f7c70",
      "gasUsed": 156647,
      "gasPrice": "100000000",
      "gasFees": "15664700000000",
      "fromAddress": "0xa4186193281f7727C070766ba60B63Df74eA4Da1",
      "toAddress": "0x6fCfE8c6e35fab88e0BecB3427e54c8c9847cdc2",
      "coinbaseDiff": "15664700000000",
      "ethSentToCoinbase": "0",
      "error": "execution reverted",
      "value": null
    }
  ],
  "stateBlockNumber": 18989909,
  "totalGasUsed": 1392420,
  "firstRevert": {
    "txHash": "0x428683ddcdf4b7e2f4468b1c7c223d66cb141fc9fb4072250be0352c353f7c70",
    "gasUsed": 156647,
    "gasPrice": "100000000",
    "gasFees": "15664700000000",
    "fromAddress": "0xa4186193281f7727C070766ba60B63Df74eA4Da1",
    "toAddress": "0x6fCfE8c6e35fab88e0BecB3427e54c8c9847cdc2",
    "coinbaseDiff": "15664700000000",
    "ethSentToCoinbase": "0",
    "error": "execution reverted",
    "value": null
  }
}

So looks like it's not detecting the error.

[xrchz]

Might have to look for firstRevert instead of error (or in addition to error actually probably)