RC get block header

GET

https://dot-playbook.nownodes.io/v1/rc/blocks/{blockId}/header

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Returns the header of a relay chain block by block hash or block number.

Parameters

blockIdstringrequiredpath

Block height number or block hash

Response

200OK

Relay chain block header

400Bad Request

Invalid block identifier

500Internal Server Error

Internal server error

503Service Unavailable

Relay chain not configured

RC get block header

curl -X GET 'https://dot-playbook.nownodes.io/v1/rc/blocks/{blockId}/header'

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

const data = await response.json();

require 'net/http'
require 'json'

uri = URI('https://dot-playbook.nownodes.io/v1/rc/blocks/{blockId}/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://dot-playbook.nownodes.io/v1/rc/blocks/{blockId}/header')
data = response.json()

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

const data = await response.json();

const endpoint = "https://dot-playbook.nownodes.io/v1/rc/blocks/{blockId}/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://dot-playbook.nownodes.io/v1/rc/blocks/{blockId}/header', {
  method: 'GET',
});

const data = await response.json();

import requests

response = requests.get('https://dot-playbook.nownodes.io/v1/rc/blocks/{blockId}/header')
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://dot-playbook.nownodes.io/v1/rc/blocks/{blockId}/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

{}