eth_simulateV1 RPC Method

Please note that eth_simulateV1 is currently supported on Arbitrum, but it may return a “-32603: method handler crashed” error due to an internal bug in the Arbitrum Nitro client. This indicates that the method is recognized but not functioning as expected. You can track the issue on GitHub at OffchainLabs/nitro#3372.

Parameters

object

REQUIRED

blockStateCalls

array

blockOverrides

object

baseFeePerGas

string

stateOverrides

object

address

object

balance

string

calls

array

from

string

maxFeePerGas

string

value

string

validation

boolean

traceTransfers

boolean

blockParameter

string

Returns

result

array

baseFeePerGas

string

blobGasUsed

string

calls

array

returnData

string

logs

array

address

string

topics

array

data

string

blockNumber

string

transactionHash

string

transactionIndex

string

blockHash

string

logIndex

string

removed

boolean

gasUsed

string

status

string

error

object

message

string

code

integer

data

string

difficulty

string

excessBlobGas

string

extraData

string

gasLimit

string

gasUsed

string

hash

string

logsBloom

string

miner

string

mixHash

string

nonce

string

number

string

parentBeaconBlockRoot

string

parentHash

string

receiptsRoot

string

sha3Uncles

string

size

string

stateRoot

string

timestamp

string

totalDifficulty

string

transactions

array

transactionsRoot

string

uncles

array

withdrawals

array

withdrawalsRoot

string

Request

curl https://docs-demo.arbitrum-mainnet.quiknode.pro/ \
  -X POST \
  -H "Content-Type: application/json" \
  --data '{"jsonrpc":"2.0","method":"eth_simulateV1","params":[{"blockStateCalls":[{"blockOverrides":{"baseFeePerGas":"0x9"},"stateOverrides":{"0xc000000000000000000000000000000000000000":{"balance":"0x4a817c420"}},"calls":[{"from":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","to":"0x014d023e954bAae7F21E56ed8a5d81b12902684D","maxFeePerGas":"0xf","value":"0x1"}]}],"validation":true,"traceTransfers":true},"latest"],"id":1}'

require 'eth'

client = Eth::Client.create 'https://docs-demo.arbitrum-mainnet.quiknode.pro/'
payload = {
    "jsonrpc": "2.0",
    "method": "eth_simulateV1",
    "params": [
      {
        "blockStateCalls": [
          {
            "blockOverrides": {
              "baseFeePerGas": "0x9"
            },
            "stateOverrides": {
              "0xc000000000000000000000000000000000000000": {
                "balance": "0x4a817c420"
              }
            },
            "calls": [
              {
                "from": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
                "to": "0x014d023e954bAae7F21E56ed8a5d81b12902684D",
                "maxFeePerGas": "0xf",
                "value": "0x1"
              }
            ]
          }
        ],
        "validation": true,
        "traceTransfers": true
      },
      "latest"
    ],
    "id": "1"
}

response = client.send(payload.to_json)
puts response

import { ethers } from "ethers";
(async () => {
  const provider = new ethers.JsonRpcProvider("https://docs-demo.arbitrum-mainnet.quiknode.pro/");
  const response = await provider.send("eth_simulateV1", [
    {
      "blockStateCalls": [
        {
          "blockOverrides": {
            "baseFeePerGas": "0x9"
          },
          "stateOverrides": {
            "0xc000000000000000000000000000000000000000": {
              "balance": "0x4a817c420"
            }
          },
          "calls": [
            {
              "from": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
              "to": "0x014d023e954bAae7F21E56ed8a5d81b12902684D",
              "maxFeePerGas": "0xf",
              "value": "0x1"
            }
          ]
        }
      ],
      "validation": true,
      "traceTransfers": true
    },
    "latest"
  ]);
  console.log(response);
})();

const myHeaders = new Headers();
myHeaders.append("accept", "application/json");
myHeaders.append("content-type", "application/json");

const raw = JSON.stringify({
  "jsonrpc": "2.0",
  "id": 1,
  "method": "eth_simulateV1",
  "params": [
    {
      "blockStateCalls": [
        {
          "blockOverrides": {
            "baseFeePerGas": "0x9"
          },
          "stateOverrides": {
            "0xc000000000000000000000000000000000000000": {
              "balance": "0x4a817c420"
            }
          },
          "calls": [
            {
              "from": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
              "to": "0x014d023e954bAae7F21E56ed8a5d81b12902684D",
              "maxFeePerGas": "0xf",
              "value": "0x1"
            }
          ]
        }
      ],
      "validation": true,
      "traceTransfers": true
    },
    "latest"
  ]
});

const requestOptions = {
  method: "POST",
  headers: myHeaders,
  body: raw,
  redirect: "follow"
};

fetch("https://docs-demo.arbitrum-mainnet.quiknode.pro/", requestOptions)
  .then((response) => response.text())
  .then((result) => console.log(result))
  .catch((error) => console.error(error));

import requests
import json

url = "https://docs-demo.arbitrum-mainnet.quiknode.pro/"

payload = json.dumps({
  "jsonrpc": "2.0",
  "id": 1,
  "method": "eth_simulateV1",
  "params": [
    {
      "blockStateCalls": [
        {
          "blockOverrides": {
            "baseFeePerGas": "0x9"
          },
          "stateOverrides": {
            "0xc000000000000000000000000000000000000000": {
              "balance": "0x4a817c420"
            }
          },
          "calls": [
            {
              "from": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
              "to": "0x014d023e954bAae7F21E56ed8a5d81b12902684D",
              "maxFeePerGas": "0xf",
              "value": "0x1"
            }
          ]
        }
      ],
      "validation": True,
      "traceTransfers": True
    },
    "latest"
  ]
})
headers = {
  'accept': 'application/json',
  'content-type': 'application/json'
}

response = requests.request("POST", url, headers=headers, data=payload)

print(response.text)

require "uri"
require "json"
require "net/http"

url = URI("https://docs-demo.arbitrum-mainnet.quiknode.pro/")

https = Net::HTTP.new(url.host, url.port)
https.use_ssl = true

request = Net::HTTP::Post.new(url)
request["accept"] = "application/json"
request["content-type"] = "application/json"
request.body = JSON.dump({
  "jsonrpc": "2.0",
  "id": 1,
  "method": "eth_simulateV1",
  "params": [
    {
      "blockStateCalls": [
        {
          "blockOverrides": {
            "baseFeePerGas": "0x9"
          },
          "stateOverrides": {
            "0xc000000000000000000000000000000000000000": {
              "balance": "0x4a817c420"
            }
          },
          "calls": [
            {
              "from": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
              "to": "0x014d023e954bAae7F21E56ed8a5d81b12902684D",
              "maxFeePerGas": "0xf",
              "value": "0x1"
            }
          ]
        }
      ],
      "validation": true,
      "traceTransfers": true
    },
    "latest"
  ]
})

response = https.request(request)
puts response.read_body

from web3 import Web3, HTTPProvider

w3 = Web3(HTTPProvider('https://docs-demo.arbitrum-mainnet.quiknode.pro/'))

payload = {
    "blockStateCalls": [
        {
            "blockOverrides": {
                "baseFeePerGas": "0x9"
            },
            "stateOverrides": {
                "0xc000000000000000000000000000000000000000": {
                    "balance": "0x4a817c420"
                }
            },
            "calls": [
                {
                    "from": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
                    "to": "0x014d023e954bAae7F21E56ed8a5d81b12902684D",
                    "maxFeePerGas": "0xf",
                    "value": "0x1"
                }
            ]
        }
    ],
    "validation": True,
    "traceTransfers": True
}

response = w3.provider.make_request("eth_simulateV1", [payload, "latest"])
print(response)

Don't have an account yet?

Create your QuickNode endpoint in seconds and start building

Get started for free

eth_simulateV1 RPC Method

Loading...

Parameters

Returns