Get block hash by block height

GET

https://trx-blockbook.nownodes.io/api/v2/block-index/{height}

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Returns the block hash corresponding to the specified block height in the Tron blockchain.

Parameters

heightinteger>= 0requiredpath

Block height for which the block hash is requested

Response

200OK

HTTP 200 response for getBlockHashByHeight. The body contains either a successful result or a node-level error.

400Bad Request

Bad Request. The request is malformed or contains invalid parameters.

401Unauthorized

Unauthorized: API key is present but rejected by the NOWNodes gateway.

405Method Not Allowed

Method Not Allowed. Returned by the NOWNodes gateway for malformed or unsupported gateway-level requests.

422Unprocessable Entity

Missing API key. The NOWNodes gateway returns plain text for this error.

500Internal Server Error

Internal Server Error. The gateway or node failed while processing the request.

Get block hash by block height

curl -X GET 'https://trx-blockbook.nownodes.io/api/v2/block-index/{height}'

const response = await fetch('https://trx-blockbook.nownodes.io/api/v2/block-index/{height}', {
  method: 'GET',
});

const data = await response.json();

require 'net/http'
require 'json'

uri = URI('https://trx-blockbook.nownodes.io/api/v2/block-index/{height}')
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://trx-blockbook.nownodes.io/api/v2/block-index/{height}')
data = response.json()

const response = await fetch('https://trx-blockbook.nownodes.io/api/v2/block-index/{height}', {
  method: 'GET',
});

const data = await response.json();

const endpoint = "https://trx-blockbook.nownodes.io/api/v2/block-index/{height}";
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://trx-blockbook.nownodes.io/api/v2/block-index/{height}', {
  method: 'GET',
});

const data = await response.json();

import requests

response = requests.get('https://trx-blockbook.nownodes.io/api/v2/block-index/{height}')
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://trx-blockbook.nownodes.io/api/v2/block-index/{height}')
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)

{
  "blockHash": "000000000502e9686b96165061a0c1deaa8818cb4c2950a60d0d713865b106d3"
}

{
  "Error": "class org.tron.core.exception.ContractValidateException: Invalid parameter",
  "code": "CONTRACT_VALIDATE_ERROR"
}

{
  "code": 400,
  "message": "Bad Request"
}

Unknown API_key

Method Not Allowed

Missing API_key

{
  "code": 500,
  "message": "Internal Server Error"
}