eth_getUncleCountByBlockNumber

Get Uncle Count By Block Number

POSThttps://site1.moralis-nodes.com/:chain/:apiKey

Returns the number of uncle blocks included in a block, identified by the block number. This method sheds light on the blockchain's branching behavior and the role of uncle blocks in enhancing network security.

Note

Please refer to RPC schema page for more details on the RPC params and RPC response definitions of the RPC method.

PATH PARAMS

chainstringrequired

The blockchain to interact with.

ethsepoliaholeskybasebase-sepoliapolygonamoybscbsc-testnetarbitrumarbitrum-sepoliaoptimismoptimism-sepoliagnosisgnosis-testnetlinealinea-sepoliaavalanchemoonbeammoonrivermoonbaseblastblast-sepoliamantlemantle-sepoliapolygon-zkevmpolygon-zkevm-cardonazksynczksync-sepoliazetachainzetachain-testnetfantomopbnbflowflow-testnetroninronin-testnetlisklisk-sepoliapulse

apiKeystringrequired

Your API key for authentication.

BODY PARAM

Request Bodyobjectrequired

The request payload for retrieving the number of uncles by block number.

{ "jsonrpc": "2.0", "id": 1, "method": "eth_getUncleCountByBlockNumber" }

Responses

200Returns the number of uncle blocks included in the specified block.

400Bad Request

404Not Found

429Too Many Requests

500Internal Server Error

cURL

curl --request POST \
     --url 'https://site1.moralis-nodes.com/eth/YOUR_API_KEY' \
     --header 'accept: application/json' \
     --header 'content-type: application/json' \
     --data '
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "eth_getUncleCountByBlockNumber"
}
'

Node.js

// Node.js v18+ has native fetch support
// No additional dependencies required

const options = {
  method: 'POST',
  headers: {
    accept: 'application/json',
    'content-type': 'application/json'
  },
  body: JSON.stringify({
    "jsonrpc": "2.0",
    "id": 1,
    "method": "eth_getUncleCountByBlockNumber"
  })
};

fetch('https://site1.moralis-nodes.com/eth/YOUR_API_KEY', options)
  .then(response => response.json())
  .then(response => console.log(response))
  .catch(err => console.error(err));

Python

# Dependencies to install:
# $ python -m pip install requests

import requests

url = "https://site1.moralis-nodes.com/eth/YOUR_API_KEY"

payload = {
  "jsonrpc": "2.0",
  "id": 1,
  "method": "eth_getUncleCountByBlockNumber"
}
headers = {
  "Accept": "application/json",
  "Content-Type": "application/json"
}

response = requests.request("POST", url, json=payload, headers=headers)

print(response.text)

Go

package main

import (
  "fmt"
  "strings"
  "net/http"
  "io"
)

func main() {

  url := "https://site1.moralis-nodes.com/eth/YOUR_API_KEY"

  payload := strings.NewReader("{\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"eth_getUncleCountByBlockNumber\"}")

  req, _ := http.NewRequest("POST", url, payload)

  req.Header.Add("Accept", "application/json")
  req.Header.Add("Content-Type", "application/json")

  res, _ := http.DefaultClient.Do(req)

  defer res.Body.Close()
  body, _ := io.ReadAll(res.Body)

  fmt.Println(res)
  fmt.Println(string(body))

}

PHP

<?php
// Dependencies to install:
// $ composer require guzzlehttp/guzzle

require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://site1.moralis-nodes.com/eth/YOUR_API_KEY', [
  'body' => '{"jsonrpc":"2.0","id":1,"method":"eth_getUncleCountByBlockNumber"}',
  'headers' => [
    'Accept' => 'application/json',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();

Response Example

200 Returns the number of uncle blocks included in the specified block.

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x2"
}