Dry Run Transaction Block

POST

https://iota.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Return transaction execution effects including the gas cost summary, while the effects are not committed to the chain.

A transaction larger than the protocol limit max_tx_size_bytes is now rejected with a user error, the same limit that applies to submitted transactions.

Move abort messages (clever errors) now include the error code of the abort when the abort constant declares one; command ordinals are written correctly (11th, 12th, 13th instead of 11st, 12nd, 13rd).

Body

application/json

JSON-RPC request for iota_dryRunTransactionBlock.

Structured JSON-RPC request information.

jsonrpcstring2.0required

JSON-RPC protocol version.

idintegerrequired

Client-defined identifier used to match the response to the request.

methodstringiota_dryRunTransactionBlockrequired

IOTA JSON-RPC method name.

paramsArray<any>required

Ordered positional parameters supplied to the method.

Response

200OK

Successful JSON-RPC response returned by the node.

Dry Run Transaction Block

curl -X POST 'https://iota.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "iota_dryRunTransactionBlock",
    "params": [
      "AAACAAgBAAAAAAAAAAAgppNjzjK5seW5x0gCMspnmQaNqnwiw9jMU2MiRsNUuf8CAgABAQAAAQEDAAAAAAEBAKaTY84yubHlucdIAjLKZ5kGjap8IsPYzFNjIkbDVLn/AfXBZEkGsKPF7vUCEfxaixRpa1H2QovSD3Ztg/O+mn8W/VHILQAAAAAgg+w3U+xj2NRoZoZJv0IkfMv3EtTo5qwmYYZDEl0nHbOmk2POMrmx5bnHSAIyymeZBo2qfCLD2MxTYyJGw1S5/+gDAAAAAAAAgJaYAAAAAAAA"
    ]
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://iota.nownodes.io/");
const result = await provider.send("iota_dryRunTransactionBlock", [
  "AAACAAgBAAAAAAAAAAAgppNjzjK5seW5x0gCMspnmQaNqnwiw9jMU2MiRsNUuf8CAgABAQAAAQEDAAAAAAEBAKaTY84yubHlucdIAjLKZ5kGjap8IsPYzFNjIkbDVLn/AfXBZEkGsKPF7vUCEfxaixRpa1H2QovSD3Ztg/O+mn8W/VHILQAAAAAgg+w3U+xj2NRoZoZJv0IkfMv3EtTo5qwmYYZDEl0nHbOmk2POMrmx5bnHSAIyymeZBo2qfCLD2MxTYyJGw1S5/+gDAAAAAAAAgJaYAAAAAAAA"
]);
console.log(result);

require 'eth'
require 'json'
require 'net/http'

uri = URI('https://iota.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "iota_dryRunTransactionBlock",
  "params": [
    "AAACAAgBAAAAAAAAAAAgppNjzjK5seW5x0gCMspnmQaNqnwiw9jMU2MiRsNUuf8CAgABAQAAAQEDAAAAAAEBAKaTY84yubHlucdIAjLKZ5kGjap8IsPYzFNjIkbDVLn/AfXBZEkGsKPF7vUCEfxaixRpa1H2QovSD3Ztg/O+mn8W/VHILQAAAAAgg+w3U+xj2NRoZoZJv0IkfMv3EtTo5qwmYYZDEl0nHbOmk2POMrmx5bnHSAIyymeZBo2qfCLD2MxTYyJGw1S5/+gDAAAAAAAAgJaYAAAAAAAA"
  ],
  "id": 1
}'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts JSON.parse(response.body)

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://iota.nownodes.io/"))
response = w3.provider.make_request("iota_dryRunTransactionBlock", [
  "AAACAAgBAAAAAAAAAAAgppNjzjK5seW5x0gCMspnmQaNqnwiw9jMU2MiRsNUuf8CAgABAQAAAQEDAAAAAAEBAKaTY84yubHlucdIAjLKZ5kGjap8IsPYzFNjIkbDVLn/AfXBZEkGsKPF7vUCEfxaixRpa1H2QovSD3Ztg/O+mn8W/VHILQAAAAAgg+w3U+xj2NRoZoZJv0IkfMv3EtTo5qwmYYZDEl0nHbOmk2POMrmx5bnHSAIyymeZBo2qfCLD2MxTYyJGw1S5/+gDAAAAAAAAgJaYAAAAAAAA"
])
print(response)

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://iota.nownodes.io/"),
});

const result = await client.request({
  method: "iota_dryRunTransactionBlock",
  params: [
  "AAACAAgBAAAAAAAAAAAgppNjzjK5seW5x0gCMspnmQaNqnwiw9jMU2MiRsNUuf8CAgABAQAAAQEDAAAAAAEBAKaTY84yubHlucdIAjLKZ5kGjap8IsPYzFNjIkbDVLn/AfXBZEkGsKPF7vUCEfxaixRpa1H2QovSD3Ztg/O+mn8W/VHILQAAAAAgg+w3U+xj2NRoZoZJv0IkfMv3EtTo5qwmYYZDEl0nHbOmk2POMrmx5bnHSAIyymeZBo2qfCLD2MxTYyJGw1S5/+gDAAAAAAAAgJaYAAAAAAAA"
],
});

console.log(result);

const endpoint = "https://iota.nownodes.io/";
const apiKey = "YOUR_API_KEY";

async function nownodesRequest(payload) {
  const response = await fetch(endpoint, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "api-key": apiKey,
    },
    body: JSON.stringify(payload),
  });

  return response.json();
}

const result = await nownodesRequest({ jsonrpc: "2.0", method: "iota_dryRunTransactionBlock", params: [
  "AAACAAgBAAAAAAAAAAAgppNjzjK5seW5x0gCMspnmQaNqnwiw9jMU2MiRsNUuf8CAgABAQAAAQEDAAAAAAEBAKaTY84yubHlucdIAjLKZ5kGjap8IsPYzFNjIkbDVLn/AfXBZEkGsKPF7vUCEfxaixRpa1H2QovSD3Ztg/O+mn8W/VHILQAAAAAgg+w3U+xj2NRoZoZJv0IkfMv3EtTo5qwmYYZDEl0nHbOmk2POMrmx5bnHSAIyymeZBo2qfCLD2MxTYyJGw1S5/+gDAAAAAAAAgJaYAAAAAAAA"
], id: 1 });
console.log(result);

const response = await fetch('https://iota.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "id": 1,
      "method": "iota_dryRunTransactionBlock",
      "params": [
        "AAACAAgBAAAAAAAAAAAgppNjzjK5seW5x0gCMspnmQaNqnwiw9jMU2MiRsNUuf8CAgABAQAAAQEDAAAAAAEBAKaTY84yubHlucdIAjLKZ5kGjap8IsPYzFNjIkbDVLn/AfXBZEkGsKPF7vUCEfxaixRpa1H2QovSD3Ztg/O+mn8W/VHILQAAAAAgg+w3U+xj2NRoZoZJv0IkfMv3EtTo5qwmYYZDEl0nHbOmk2POMrmx5bnHSAIyymeZBo2qfCLD2MxTYyJGw1S5/+gDAAAAAAAAgJaYAAAAAAAA"
      ]
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "id": 1,
  "method": "iota_dryRunTransactionBlock",
  "params": [
    "AAACAAgBAAAAAAAAAAAgppNjzjK5seW5x0gCMspnmQaNqnwiw9jMU2MiRsNUuf8CAgABAQAAAQEDAAAAAAEBAKaTY84yubHlucdIAjLKZ5kGjap8IsPYzFNjIkbDVLn/AfXBZEkGsKPF7vUCEfxaixRpa1H2QovSD3Ztg/O+mn8W/VHILQAAAAAgg+w3U+xj2NRoZoZJv0IkfMv3EtTo5qwmYYZDEl0nHbOmk2POMrmx5bnHSAIyymeZBo2qfCLD2MxTYyJGw1S5/+gDAAAAAAAAgJaYAAAAAAAA"
  ]
}

response = requests.post('https://iota.nownodes.io/', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://iota.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "iota_dryRunTransactionBlock",
    "params": [
      "AAACAAgBAAAAAAAAAAAgppNjzjK5seW5x0gCMspnmQaNqnwiw9jMU2MiRsNUuf8CAgABAQAAAQEDAAAAAAEBAKaTY84yubHlucdIAjLKZ5kGjap8IsPYzFNjIkbDVLn/AfXBZEkGsKPF7vUCEfxaixRpa1H2QovSD3Ztg/O+mn8W/VHILQAAAAAgg+w3U+xj2NRoZoZJv0IkfMv3EtTo5qwmYYZDEl0nHbOmk2POMrmx5bnHSAIyymeZBo2qfCLD2MxTYyJGw1S5/+gDAAAAAAAAgJaYAAAAAAAA"
    ]
  }'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }
data = JSON.parse(response.body)

Request Body

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "iota_dryRunTransactionBlock",
  "params": [
    "AAACAAgBAAAAAAAAAAAgppNjzjK5seW5x0gCMspnmQaNqnwiw9jMU2MiRsNUuf8CAgABAQAAAQEDAAAAAAEBAKaTY84yubHlucdIAjLKZ5kGjap8IsPYzFNjIkbDVLn/AfXBZEkGsKPF7vUCEfxaixRpa1H2QovSD3Ztg/O+mn8W/VHILQAAAAAgg+w3U+xj2NRoZoZJv0IkfMv3EtTo5qwmYYZDEl0nHbOmk2POMrmx5bnHSAIyymeZBo2qfCLD2MxTYyJGw1S5/+gDAAAAAAAAgJaYAAAAAAAA"
  ]
}

200

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "effects": {
      "messageVersion": "v1",
      "status": {
        "status": "success"
      },
      "executedEpoch": "498",
      "gasUsed": {
        "computationCost": "1000000",
        "computationCostBurned": "1000000",
        "storageCost": "1960800",
        "storageRebate": "980400",
        "nonRefundableStorageFee": "0"
      },
      "modifiedAtVersions": [
        {
          "objectId": "0xf5c1644906b0a3c5eef50211fc5a8b14696b51f6428bd20f766d83f3be9a7f16",
          "sequenceNumber": "768102909"
        }
      ],
      "transactionDigest": "GKamrNQHMkSTqZXdimerADrgVszLVvgqp7UPimDFtB6S",
      "created": [
        {
          "owner": {
            "AddressOwner": "0xa69363ce32b9b1e5b9c7480232ca6799068daa7c22c3d8cc53632246c354b9ff"
          },
          "reference": {
            "objectId": "0xf8e95fb2e30437ad192ad48fafc8baab9d53e5d1c8068ef2f6702cdd10106ea2",
            "version": 768102910,
            "digest": "3LJirTvDxreBCN2wKF1NhH3NUxWNqGD3xf24FacxD8HY"
          }
        }
      ],
      "mutated": [
        {
          "owner": {
            "AddressOwner": "0xa69363ce32b9b1e5b9c7480232ca6799068daa7c22c3d8cc53632246c354b9ff"
          },
          "reference": {
            "objectId": "0xf5c1644906b0a3c5eef50211fc5a8b14696b51f6428bd20f766d83f3be9a7f16",
            "version": 768102910,
            "digest": "AdJikBA6hL55GjxFUuXiAR9DgGCb4KEHbmotnvbvGQtQ"
          }
        }
      ],
      "gasObject": {
        "owner": {
          "AddressOwner": "0xa69363ce32b9b1e5b9c7480232ca6799068daa7c22c3d8cc53632246c354b9ff"
        },
        "reference": {
          "objectId": "0xf5c1644906b0a3c5eef50211fc5a8b14696b51f6428bd20f766d83f3be9a7f16",
          "version": 768102910,
          "digest": "AdJikBA6hL55GjxFUuXiAR9DgGCb4KEHbmotnvbvGQtQ"
        }
      },
      "dependencies": [
        "EmXLEtEKgji5HGJYCKi7dnUpXom8La5HK4dRdCXPMXaN"
      ]
    },
    "events": [],
    "objectChanges": [
      {
        "type": "mutated",
        "sender": "0xa69363ce32b9b1e5b9c7480232ca6799068daa7c22c3d8cc53632246c354b9ff",
        "owner": {
          "AddressOwner": "0xa69363ce32b9b1e5b9c7480232ca6799068daa7c22c3d8cc53632246c354b9ff"
        },
        "objectType": "0x2::coin::Coin<0x2::iota::IOTA>",
        "objectId": "0xf5c1644906b0a3c5eef50211fc5a8b14696b51f6428bd20f766d83f3be9a7f16",
        "version": "768102910",
        "previousVersion": "768102909",
        "digest": "AdJikBA6hL55GjxFUuXiAR9DgGCb4KEHbmotnvbvGQtQ"
      },
      {
        "type": "created",
        "sender": "0xa69363ce32b9b1e5b9c7480232ca6799068daa7c22c3d8cc53632246c354b9ff",
        "owner": {
          "AddressOwner": "0xa69363ce32b9b1e5b9c7480232ca6799068daa7c22c3d8cc53632246c354b9ff"
        },
        "objectType": "0x2::coin::Coin<0x2::iota::IOTA>",
        "objectId": "0xf8e95fb2e30437ad192ad48fafc8baab9d53e5d1c8068ef2f6702cdd10106ea2",
        "version": "768102910",
        "digest": "3LJirTvDxreBCN2wKF1NhH3NUxWNqGD3xf24FacxD8HY"
      }
    ],
    "balanceChanges": [
      {
        "owner": {
          "AddressOwner": "0xa69363ce32b9b1e5b9c7480232ca6799068daa7c22c3d8cc53632246c354b9ff"
        },
        "coinType": "0x2::iota::IOTA",
        "amount": "-1980400"
      }
    ],
    "input": {
      "messageVersion": "v1",
      "transaction": {
        "kind": "ProgrammableTransaction",
        "inputs": [
          {
            "type": "pure",
            "valueType": "u64",
            "value": "1"
          },
          {
            "type": "pure",
            "valueType": "address",
            "value": "0xa69363ce32b9b1e5b9c7480232ca6799068daa7c22c3d8cc53632246c354b9ff"
          }
        ],
        "transactions": [
          {
            "SplitCoins": [
              "GasCoin",
              [
                {
                  "Input": 0
                }
              ]
            ]
          },
          {
            "TransferObjects": [
              [
                {
                  "NestedResult": [
                    0,
                    0
                  ]
                }
              ],
              {
                "Input": 1
              }
            ]
          }
        ]
      },
      "sender": "0xa69363ce32b9b1e5b9c7480232ca6799068daa7c22c3d8cc53632246c354b9ff",
      "gasData": {
        "payment": [
          {
            "objectId": "0xf5c1644906b0a3c5eef50211fc5a8b14696b51f6428bd20f766d83f3be9a7f16",
            "version": 768102909,
            "digest": "9syKWbvvPQwdfb1HCHWAE6MJduau3jNAGKcvedJkmoei"
          }
        ],
        "owner": "0xa69363ce32b9b1e5b9c7480232ca6799068daa7c22c3d8cc53632246c354b9ff",
        "price": "1000",
        "budget": "10000000"
      }
    },
    "suggestedGasPrice": "1000",
    "executionErrorSource": null
  }
}