Get Node Synchronization State

POST

https://dot.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Returns the current synchronization state of the Polkadot node. This includes the block number where synchronization started, the current block the node has synced to, and the highest known block in the network. This method is useful for monitoring sync progress and determining if a node is fully synchronized.

Body

application/json

jsonrpcstring

JSON-RPC protocol version. Polkadot uses version "2.0".

methodstring

The name of the RPC method to call.

idinteger

Unique identifier for the request. Used to match responses with requests.

paramsArray<any>

Parameters for the method. This method does not require any parameters.

Response

200OK

Successful response with node synchronization state information.

Get Node Synchronization State

curl -X POST 'https://dot.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "system_syncState",
    "id": 1,
    "params": []
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://dot.nownodes.io/");
const result = await provider.send("system_syncState", []);
console.log(result);

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

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

import { createPublicClient, http } from "viem";

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

const result = await client.request({
  method: "system_syncState",
  params: [],
});

console.log(result);

const endpoint = "https://dot.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: "system_syncState", params: [], id: 1 });
console.log(result);

const response = await fetch('https://dot.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "method": "system_syncState",
      "id": 1,
      "params": []
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "method": "system_syncState",
  "id": 1,
  "params": []
}

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

require 'net/http'
require 'json'

uri = URI('https://dot.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "method": "system_syncState",
    "id": 1,
    "params": []
  }'

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",
  "method": "system_syncState",
  "id": 1,
  "params": []
}

200

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "startingBlock": 30541267,
    "currentBlock": 30586359,
    "highestBlock": 30586359
  }
}

Documentation

How to migrate to NOWNodes

Get Node Synchronization State

Authorizations

Body

Response