eth_maxPriorityFeePerGas - BNB Smart Chain

Retrieve the current max priority fee per gas on BSC using eth_maxPriorityFeePerGas via the JSON-RPC API Interface.

The method estimates the current optimal priority fee per gas for transactions on the BNB Smart Chain, enhancing transaction speed and efficiency.

The eth_maxPriorityFeePerGas method in the BSC protocol is a JSON-RPC API call that retrieves the maximum priority fee per gas unit suggested for transactions. This method aids users in determining an appropriate tip to include in their transactions, ensuring timely processing by miners on the network.

Utilizing the eth_maxPriorityFeePerGas Web3 interface, developers can integrate this functionality into their applications to enhance user experience by providing dynamic fee calculations. The eth_maxPriorityFeePerGas RPC protocol ensures efficient communication between clients and the BSC network, optimizing transaction handling.

Supported Networks

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

• Mainnet

• Testnet

Parameters

None: This method does not require any parameters.

Request Example

API Endpoint

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

Request

Here’s a sample cURL request using eth_maxPriorityFeePerGas :

curl

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

Response

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

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x3b9aca00"
}

Body Parameters

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

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

2. id: This is an identifier for the request. It is used to match the response with the request. In this example, the id is 1.

3. result: This parameter contains the result of the eth_maxPriorityFeePerGas method call. It is the maximum priority fee per gas that a user is willing to pay to have their transaction included in a block, represented in hexadecimal format. In this response, the result is "0x3b9aca00".

Use Cases

Here are some use-cases for eth_maxPriorityFeePerGas method:

1. Transaction Cost Estimation: When developing decentralized applications (dApps) on Ethereum, it's crucial to estimate transaction costs accurately. By using the eth_maxPriorityFeePerGas method, developers can retrieve the current maximum priority fee that users are paying to get their transactions processed quickly. This information helps in setting an appropriate maxPriorityFeePerGas for transactions, ensuring they are mined promptly without overpaying.

2. Dynamic Fee Adjustment: In volatile network conditions, the gas fees can fluctuate significantly. The eth_maxPriorityFeePerGas method provides real-time data that developers can use to adjust transaction fees dynamically. This is particularly useful for wallets or services that aim to optimize transaction costs for users by automatically adjusting fees based on current network conditions.

3. User Experience Enhancement: For applications that aim to provide a seamless user experience, understanding the current fee market is essential. By integrating the eth_maxPriorityFeePerGas method, developers can offer users recommendations or presets for transaction fees, helping them choose the right balance between cost and speed. This can lead to higher user satisfaction as transactions are confirmed in a timely manner without unnecessary expense.

Code for eth_maxPriorityFeePerGas

Python

import requests
import json
url = "https://go.getblock.io/<ACCESS-TOKEN>/"
headers = {
    "Content-Type": "application/json"
}
payload = {
  "jsonrpc": "2.0",
  "method": "eth_maxPriorityFeePerGas",
  "params": [],
  "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_maxPriorityFeePerGas",
  "params": [],
  "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_maxPriorityFeePerGas JSON-RPC API BSC method, the following issues may occur:

• Network Congestion: If the network is experiencing high traffic, the returned priority fee might be higher than expected. To address this, monitor network conditions and adjust your transaction strategy accordingly.

• Outdated Client Software: Using an outdated client version might lead to unexpected errors or inaccurate fee estimates. Ensure that your client software is up-to-date to maintain compatibility with the latest protocol changes.

• Rate Limiting: Excessive requests to the BSC node can result in rate limiting, leading to delayed or failed responses. Implement request throttling and caching strategies to optimize your application's performance.

• Node Synchronization Issues: If the BSC node is not fully synchronized with the network, it might provide incorrect fee estimates. Verify node synchronization status and consider using a reliable node provider to mitigate this risk.

Using the eth_maxPriorityFeePerGas method in Web3 applications allows developers to dynamically adjust transaction fees based on current network conditions, ensuring timely transaction processing. This capability enhances user experience by reducing transaction delays and optimizing gas costs, making it a valuable tool for efficient transaction management in decentralized applications.

Conclusion

The eth_maxPriorityFeePerGas method in the JSON-RPC API is crucial for determining the maximum priority fee per gas on networks like Ethereum and BSC. By leveraging eth_maxPriorityFeePerGas, developers can optimize transaction costs efficiently. This method is essential for ensuring transactions are processed promptly without overpaying.