Parse transaction (relay chain)

POST

https://ksmassethub-playbook.nownodes.io/v1/rc/transaction/parse

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Decode a raw transaction using relay chain metadata. Only available on parachains. Returns the decoded pallet/method, call arguments, signature info, nonce, tip, era, and hash. Note: This endpoint uses the relay chain's current (latest) metadata for decoding. Transactions created for older runtime versions may fail to decode if the extrinsic format has changed.

Body

application/json

Transaction with 'tx' field containing hex-encoded extrinsic

Request body for transaction parsing.

txstring

Hex-encoded extrinsic with optional 0x prefix.

Response

200OK

Parsed transaction

400Bad Request

Invalid transaction or relay chain not configured

500Internal Server Error

Internal server error

503Service Unavailable

Relay chain unavailable

Parse transaction (relay chain)

curl -X POST 'https://ksmassethub-playbook.nownodes.io/v1/rc/transaction/parse' \
  -H 'Content-Type: application/json' \
  -d '{
    "tx": "0x4902840004316d995f..."
  }'

const response = await fetch('https://ksmassethub-playbook.nownodes.io/v1/rc/transaction/parse', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "tx": "0x4902840004316d995f..."
    }),
});

const data = await response.json();

require 'net/http'
require 'json'

uri = URI('https://ksmassethub-playbook.nownodes.io/v1/rc/transaction/parse')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "tx": "0x4902840004316d995f..."
  }'

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

import requests

payload = {
  "tx": "0x4902840004316d995f..."
}

response = requests.post('https://ksmassethub-playbook.nownodes.io/v1/rc/transaction/parse', json=payload)
data = response.json()

const response = await fetch('https://ksmassethub-playbook.nownodes.io/v1/rc/transaction/parse', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "tx": "0x4902840004316d995f..."
    }),
});

const data = await response.json();

const endpoint = "https://ksmassethub-playbook.nownodes.io/v1/rc/transaction/parse";
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({
    "tx": "0x4902840004316d995f..."
  });
console.log(result);

const response = await fetch('https://ksmassethub-playbook.nownodes.io/v1/rc/transaction/parse', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "tx": "0x4902840004316d995f..."
    }),
});

const data = await response.json();

import requests

payload = {
  "tx": "0x4902840004316d995f..."
}

response = requests.post('https://ksmassethub-playbook.nownodes.io/v1/rc/transaction/parse', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://ksmassethub-playbook.nownodes.io/v1/rc/transaction/parse')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "tx": "0x4902840004316d995f..."
  }'

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

Request Body

{
  "tx": "0x4902840004316d995f..."
}

{
  "args": {},
  "era": {},
  "hash": "0x1234567890abcdef...",
  "isSigned": true,
  "method": {
    "method": "transferAllowDeath",
    "pallet": "balances"
  },
  "nonce": "42",
  "signature": {
    "signature": "0xa24152685f52e4726466e80247d965bb3d349637fc8a1ea6f7cc1451ddec98b5...",
    "signer": {
      "id": "5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY"
    }
  },
  "tip": "0"
}

{
  "cause": "string",
  "code": 400,
  "error": "Failed to parse transaction.",
  "stack": "string",
  "transaction": "string"
}