getblockchaininfo

POST

https://grs.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Modified in Groestlcoin Core 31.0.0 > 32.1.0:

Adds optional backgroundvalidation object during assumeutxo snapshot background validation, with snapshotheight, blocks, bestblockhash, chainwork, mediantime and verificationprogress.
verificationprogress=1 and initialblockdownload=false can indicate snapshot-to-tip sync while validation still runs in background; inspect backgroundvalidation.

Returns an object containing various state info regarding blockchain processing.

Body

application/json

jsonrpcstringrequired

idstringrequired

methodstringgetblockchaininforequired

paramsArray<any>required

Response

200OK

Blockchain state information retrieved successfully

401Unauthorized

Unauthorized

500Internal Server Error

Internal Server Error

getblockchaininfo

curl -X POST 'https://grs.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "1.0",
    "id": "curltest",
    "method": "getblockchaininfo",
    "params": []
  }'

import { JsonRpcProvider } from "ethers";

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

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

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

import { createPublicClient, http } from "viem";

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

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

console.log(result);

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

const response = await fetch('https://grs.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "1.0",
      "id": "curltest",
      "method": "getblockchaininfo",
      "params": []
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "1.0",
  "id": "curltest",
  "method": "getblockchaininfo",
  "params": []
}

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

require 'net/http'
require 'json'

uri = URI('https://grs.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "1.0",
    "id": "curltest",
    "method": "getblockchaininfo",
    "params": []
  }'

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

Request Body

{
  "jsonrpc": "1.0",
  "id": "curltest",
  "method": "getblockchaininfo",
  "params": []
}

{
  "result": {
    "chain": "main",
    "blocks": 855000,
    "headers": 855002,
    "bestblockhash": "0000000000000000000b27d455de872dfe8a8aa4f2efbfc5f1877357f7c8e97b",
    "difficulty": 225983213292.9388,
    "mediantime": 1700000500,
    "verificationprogress": 0.999999,
    "initialblockdownload": false,
    "chainwork": "0000000000000000000000000000000000000000230c36f8ff7f4fbee5b6a0c2",
    "size_on_disk": 495000000000,
    "pruned": false,
    "pruneheight": null,
    "automatic_pruning": false,
    "prune_target_size": null,
    "warnings": [
      "string"
    ],
    "backgroundvalidation": {
      "snapshotheight": 0,
      "blocks": 0,
      "bestblockhash": "string",
      "chainwork": "string",
      "mediantime": 0,
      "verificationprogress": 0
    },
    "bits": "string",
    "target": "string",
    "time": 0
  },
  "error": {},
  "id": "curltest"
}

"Unknown API_key"

"Service is unavailable"