getBlockByHeight Query

Parameters

height

string

REQUIRED

The height of the block

Returns

data

object

The data object which contains the following fields:

block

object

The object that holds information about the queried block

id

string

The unique identifier (hash) of the block.

Request

curl --location 'https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql' \
--header 'Accept: application/json' \
--header 'Content-Type: application/json' \
--data '{
  "query": "query Block($height: U64) { block(height: $height) { id } }",
  "variables": {
    "height": "3412"
  }
}'

const BLOCK_QUERY = `
  query Block($height: U64) {
    block(height: $height) {
      id
    }
  }
`;

const QUERY_VARIABLES = {
  height: '3412',
};

const fetchBlockByHeight = async () => {
  try {
    const response = await fetch('https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql', {
      method: 'POST',
      headers: {
        'Accept': 'application/json',
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        query: BLOCK_QUERY,
        variables: QUERY_VARIABLES,
      }),
    });

    if (!response.ok) {
      throw new Error(`HTTP error! status: ${response.status}`);
    }

    const result = await response.json();
    console.log('Block ID:', result.data.block.id);
  } catch (error) {
    console.error('Error fetching block:', error);
  }
};

fetchBlockByHeight();

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

const raw = JSON.stringify({
  "query": "query Block($height: U64) { block(height: $height) { id } }",
  "variables": {
    "height": "3412"
  }
});

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

fetch("https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql", requestOptions)
  .then((response) => response.text())
  .then((result) => console.log(result))
  .catch((error) => console.error(error));

const { ApolloClient, InMemoryCache, gql } = require('@apollo/client/core');
const fetch = require('cross-fetch');

const client = new ApolloClient({
  uri: 'https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql',
  cache: new InMemoryCache(),
  fetch: fetch,
  headers: {
    'Accept': 'application/json',
    'Content-Type': 'application/json'
  }
});

const BLOCK_BY_HEIGHT_QUERY = gql`
  query Block($height: U64) {
    block(height: $height) {
      id
    }
  }
`;

const variables = {
  height: "3412"
};

client.query({
  query: BLOCK_BY_HEIGHT_QUERY,
  variables: variables
})
.then(result => {
  console.log(JSON.stringify(result.data, null, 2));
})
.catch(error => console.error('Error:', error));

import requests
import json

url = "https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql"

payload = json.dumps({
  "query": "query Block($height: U64) { block(height: $height) { id } }",
  "variables": {
    "height": "3412"
  }
})
headers = {
  'Accept': 'application/json',
  '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.fuel-mainnet.quiknode.pro/v1/graphql")

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

request = Net::HTTP::Post.new(url)
request["Accept"] = "application/json"
request["Content-Type"] = "application/json"
request.body = JSON.dump({
  "query": "query Block(\$height: U64) { block(height: \$height) { id } }",
  "variables": {
    "height": "3412"
  }
})

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

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