chain_getHeader RPC Method

Parameters

hash

string

The block hash. If not provided, takes the latest block

Returns

result

object

The block header information

parentHash

string

Hash of the parent block

number

string

Block number in hexadecimal

stateRoot

string

Merkle root of the state trie after this block

extrinsicsRoot

string

Merkle root of the extrinsics in the block

digest

object

Block digest containing consensus and runtime logs

logs

array

List of digest log entries as hex strings

Request

curl --location 'https://docs-demo.dot-mainnet.quiknode.pro/asset-hub' \
     --header 'Content-Type: application/json' \
     --data '{"jsonrpc":"2.0","id":1,"method":"chain_getHeader","params":[]}'

const myHeaders = new Headers();
myHeaders.append("Content-Type", "application/json");

const raw = JSON.stringify({
  "jsonrpc": "2.0",
  "id": 1,
  "method": "chain_getHeader",
  "params": []
});

const requestOptions = {
  method: "POST",
  headers: myHeaders,
  body: raw,
  redirect: "follow"
};

fetch("https://docs-demo.dot-mainnet.quiknode.pro/asset-hub", requestOptions)
  .then((response) => response.text())
  .then((result) => console.log(result))
  .catch((error) => console.error(error));

import requests
import json

url = "https://docs-demo.dot-mainnet.quiknode.pro/asset-hub"

payload = json.dumps({
  "jsonrpc": "2.0",
  "id": 1,
  "method": "chain_getHeader",
  "params": []
})

headers = {
  'Content-Type': 'application/json'
}

response = requests.request("POST", url, headers=headers, data=payload)
print(response.text)

require "uri"
require "json"
require "net/http"

url = URI("https://docs-demo.dot-mainnet.quiknode.pro/asset-hub")

https = Net::HTTP.new(url.host, url.port)
https.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = "application/json"
request.body = JSON.dump({
  "jsonrpc": "2.0",
  "id": 1,
  "method": "chain_getHeader",
  "params": []
})

response = https.request(request)
puts response.read_body

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