Get head block header

GET

https://ksm-playbook.nownodes.io/v1/blocks/head/header

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Returns the header of the latest finalized or canonical block (lightweight, no extrinsics/events).

Parameters

finalizedbooleanquery

When true (default), returns finalized head header. When false, returns canonical head header.

useRcBlockbooleanquery

Treat as Relay Chain block and return Asset Hub blocks

Response

200OK

Block header information

500Internal Server Error

Internal server error

503Service Unavailable

Service unavailable

Get head block header

curl -X GET 'https://ksm-playbook.nownodes.io/v1/blocks/head/header'

const response = await fetch('https://ksm-playbook.nownodes.io/v1/blocks/head/header', {
  method: 'GET',
});

const data = await response.json();

require 'net/http'
require 'json'

uri = URI('https://ksm-playbook.nownodes.io/v1/blocks/head/header')
request = Net::HTTP::Get.new(uri)

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

import requests

response = requests.get('https://ksm-playbook.nownodes.io/v1/blocks/head/header')
data = response.json()

const response = await fetch('https://ksm-playbook.nownodes.io/v1/blocks/head/header', {
  method: 'GET',
});

const data = await response.json();

const endpoint = "https://ksm-playbook.nownodes.io/v1/blocks/head/header";
const apiKey = "YOUR_API_KEY";

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

  return response.json();
}

const result = await nownodesRequest({});
console.log(result);

const response = await fetch('https://ksm-playbook.nownodes.io/v1/blocks/head/header', {
  method: 'GET',
});

const data = await response.json();

import requests

response = requests.get('https://ksm-playbook.nownodes.io/v1/blocks/head/header')
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://ksm-playbook.nownodes.io/v1/blocks/head/header')
request = Net::HTTP::Get.new(uri)

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

200

{}