eth_getUncleCountByBlockNumber - BNB Smart Chain

Retrieve uncle count for a specific block in BSC using JSON-RPC API Interface with eth_getUncleCountByBlockNumber. Technical, concise, user-friendly.

The RPC method retrieves the number of uncle blocks for a specific block number on BNB Smart Chain, aiding in blockchain analysis and network health assessment.

The eth_getUncleCountByBlockNumber method in the BSC protocol is a JSON-RPC API call that retrieves the number of uncle blocks for a given block number. Utilizing the eth_getUncleCountByBlockNumber Web3 interface, developers can efficiently query uncle block data, enhancing blockchain analysis and network monitoring.

As part of the eth_getUncleCountByBlockNumber RPC protocol, this method requires a single parameter: the block number in hexadecimal format. The response returns the count of uncle blocks, aiding in understanding network performance and block propagation. This method is essential for developers focusing on blockchain metrics and performance optimization.

Supported Networks

The eth_getUncleCountByBlockNumber JSON-RPC API method supports the following network types:

• Mainnet

• Testnet

Parameters

Here is the list of parameters eth_getUncleCountByBlockNumber method needs to be executed. Always format the method name as inline code (wrapped in backticks).

• Block Number (required)

  • Type: String

  • Description: The block number for which the uncle count is being queried. It should be specified in hexadecimal format.

  • Supported Values: A hexadecimal string representing a block number, e.g., "0xc5043f".

Request Example

API Endpoint

https://go.getblock.io/<ACCESS-TOKEN>/

Request

Here’s a sample cURL request using eth_getUncleCountByBlockNumber :

curl

curl --location --request POST https://go.getblock.io/<ACCESS-TOKEN>/
--header 'Content-Type: application/json' 
--data-raw {
  "jsonrpc": "2.0",
  "method": "eth_getUncleCountByBlockNumber",
  "params": ["0xc5043f"],
  "id": 1
}

Response

Below is a sample JSON response returned by eth_getUncleCountByBlockNumber upon a successful call:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x0"
}

Body Parameters

Here is the list of body parameters for the eth_getUncleCountByBlockNumber method:

1. jsonrpc: This parameter specifies the version of the JSON-RPC protocol used. In this case, it is "2.0".

2. id: This is a unique identifier for the request. It helps in matching responses with requests. In the example provided, the id is 1.

3. result: This parameter contains the result of the method call. For the eth_getUncleCountByBlockNumber method, it returns the number of uncle blocks for a given block number. The result is represented as a hexadecimal value. In the example, the result is "0x0", indicating that there are no uncle blocks for the specified block number.

Use Cases

Here are some use-cases for eth_getUncleCountByBlockNumber method:

1. Blockchain Analysis and Research: Developers and researchers can use the eth_getUncleCountByBlockNumber method to analyze the frequency and distribution of uncle blocks within the Ethereum network. By retrieving the number of uncle blocks for different block numbers, they can study network performance, block propagation times, and the effectiveness of consensus mechanisms over time.

2. Network Health Monitoring: Blockchain explorers and monitoring tools can utilize the eth_getUncleCountByBlockNumber method to assess the health and efficiency of the Ethereum network. A higher number of uncle blocks might indicate network congestion or inefficiencies in block propagation, prompting further investigation or optimization.

3. Incentive and Reward Calculation: In Ethereum, miners receive rewards for including uncle blocks in the blockchain. By using the eth_getUncleCountByBlockNumber method, developers can accurately calculate the rewards that miners receive for including these uncle blocks. This can be crucial for financial modeling and understanding the economic incentives within the Ethereum network.

Code for eth_getUncleCountByBlockNumber

Python

import requests
import json
url = "https://go.getblock.io/<ACCESS-TOKEN>/"
headers = {
    "Content-Type": "application/json"
}
payload = {
  "jsonrpc": "2.0",
  "method": "eth_getUncleCountByBlockNumber",
  "params": ["0xc5043f"],
  "id": 1
}

response = requests.post(url, headers=headers, data=json.dumps(payload))

# Check the response and print the result
if response.status_code == 200:
    print("Result:", response.json().get("result"))
else:
    print("Error:", response.status_code, response.text)

JavaScript

const axios = require('axios');

const url = "https://go.getblock.io/<ACCESS-TOKEN>/";
const payload = {
  "jsonrpc": "2.0",
  "method": "eth_getUncleCountByBlockNumber",
  "params": ["0xc5043f"],
  "id": 1
};

axios.post(url, payload, {
  headers: { "Content-Type": "application/json" }
})
.then(response => {
  console.log("Result:", response.data.result);
})
.catch(error => {
  if (error.response) {
    console.error("Error:", error.response.status, error.response.data);
  } else {
    console.error("Request failed:", error.message);
  }
});

Common Errors

When using the eth_getUncleCountByBlockNumber JSON-RPC API BSC method, the following issues may occur:

• Incorrect block number format: Ensure that the block number is provided in hexadecimal format prefixed by "0x". Double-check the formatting to prevent invalid parameter errors.

• Network connectivity issues: If you experience timeouts or no response, verify your network connection and ensure that the BSC node endpoint is reachable.

• Node synchronization lag: If the returned uncle count seems outdated, it might be due to your node being out of sync. Make sure your node is fully synchronized with the BSC network.

• Invalid block number: Providing a block number that does not exist or is beyond the current chain height will result in an error. Verify the block number against the latest chain data.

Using the eth_getUncleCountByBlockNumber method in Web3 applications allows developers to efficiently retrieve the number of uncles for a specific block, providing insights into network performance and block validation processes. This functionality is essential for analytics and monitoring tools that aim to offer comprehensive data on blockchain operations and health.

Conclusion

The JSON-RPC method eth_getUncleCountByBlockNumber is used to retrieve the number of uncle blocks for a specific block number on blockchain networks like Ethereum and BSC. By providing a block number in the parameters, users can efficiently query the network for uncle block data, which is crucial for understanding network performance and block validation processes. Utilizing eth_getUncleCountByBlockNumber in JSON-RPC calls is essential for developers and analysts working with Ethereum and BSC to gain insights into the network's block production dynamics.