Submit and subscribe to an extrinsic until unsubscribed

POST

https://atleta-testnet.nownodes.io/author_submitAndWatchExtrinsic

Authorizations

ApiKeyAuthApiKeyAuth

api_key string

NOWNodes API key passed in the api-key header.

Submits a fully encoded extrinsic to the network and subscribes to its lifecycle updates (e.g., when it is included in a block or finalized).

Body

application/json

api_keystring

jsonrpcstring

idstring

methodstring

paramsArray<string>

Response

200OK

Successfully submitted extrinsic and received its current status.

400Bad Request

Bad Request

500Internal Server Error

Internal Server Error

Submit and subscribe to an extrinsic until unsubscribed

curl -X POST 'https://atleta-testnet.nownodes.io/author_submitAndWatchExtrinsic' \
  -H 'Content-Type: application/json' \
  -d '{
    "api_key": "your_api_key",
    "jsonrpc": "2.0",
    "id": "test",
    "method": "author_submitAndWatchExtrinsic",
    "params": [
      "0x2902...9642bc3bcec8c8366f6af0665860f9d4e8c8a972404"
    ]
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://atleta-testnet.nownodes.io/author_submitAndWatchExtrinsic");
const result = await provider.send("author_submitAndWatchExtrinsic", [
  "0x2902...9642bc3bcec8c8366f6af0665860f9d4e8c8a972404"
]);
console.log(result);

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

uri = URI('https://atleta-testnet.nownodes.io/author_submitAndWatchExtrinsic')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "author_submitAndWatchExtrinsic",
  "params": [
    "0x2902...9642bc3bcec8c8366f6af0665860f9d4e8c8a972404"
  ],
  "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://atleta-testnet.nownodes.io/author_submitAndWatchExtrinsic"))
response = w3.provider.make_request("author_submitAndWatchExtrinsic", [
  "0x2902...9642bc3bcec8c8366f6af0665860f9d4e8c8a972404"
])
print(response)

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://atleta-testnet.nownodes.io/author_submitAndWatchExtrinsic"),
});

const result = await client.request({
  method: "author_submitAndWatchExtrinsic",
  params: [
  "0x2902...9642bc3bcec8c8366f6af0665860f9d4e8c8a972404"
],
});

console.log(result);

const endpoint = "https://atleta-testnet.nownodes.io/author_submitAndWatchExtrinsic";
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: "author_submitAndWatchExtrinsic", params: [
  "0x2902...9642bc3bcec8c8366f6af0665860f9d4e8c8a972404"
], id: 1 });
console.log(result);

const response = await fetch('https://atleta-testnet.nownodes.io/author_submitAndWatchExtrinsic', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "api_key": "your_api_key",
      "jsonrpc": "2.0",
      "id": "test",
      "method": "author_submitAndWatchExtrinsic",
      "params": [
        "0x2902...9642bc3bcec8c8366f6af0665860f9d4e8c8a972404"
      ]
    }),
});

const data = await response.json();

import requests

payload = {
  "api_key": "your_api_key",
  "jsonrpc": "2.0",
  "id": "test",
  "method": "author_submitAndWatchExtrinsic",
  "params": [
    "0x2902...9642bc3bcec8c8366f6af0665860f9d4e8c8a972404"
  ]
}

response = requests.post('https://atleta-testnet.nownodes.io/author_submitAndWatchExtrinsic', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://atleta-testnet.nownodes.io/author_submitAndWatchExtrinsic')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "api_key": "your_api_key",
    "jsonrpc": "2.0",
    "id": "test",
    "method": "author_submitAndWatchExtrinsic",
    "params": [
      "0x2902...9642bc3bcec8c8366f6af0665860f9d4e8c8a972404"
    ]
  }'

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

Request Body

{
  "api_key": "your_api_key",
  "jsonrpc": "2.0",
  "id": "test",
  "method": "author_submitAndWatchExtrinsic",
  "params": [
    "0x2902...9642bc3bcec8c8366f6af0665860f9d4e8c8a972404"
  ]
}

200

{
  "jsonrpc": "2.0",
  "result": {
    "extrinsicHash": "0x123456789abcdef...7890",
    "status": {
      "Finalized": "0xabc123blockhash..."
    }
  },
  "id": "test"
}

Documentation

How to migrate to NOWNodes

Submit and subscribe to an extrinsic until unsubscribed

Authorizations

Body

Response