Ethereum API Request Issue on Binance

As a developer working with Ethereum smart contracts, you rely heavily on APIs to interact with the Binance Exchange. However, it is not uncommon to encounter an error while making a request. In this article, we will explore the issue you are facing when making a universal transfer call to the Binance API.

The Problem: Required ‘type’ Parameter Not Sent

When constructing an Ethereum API request, it appears that one of the required parameters, “type”, is missing or missing from the query. This oversight may prevent the application from successfully processing the transaction.

To better understand the situation, let’s examine how Binance handles the universal transfer call and identify what could be causing the issue.

Binance API Request Structure

The universal transfer call to the Binance API requires three parameters:

• “asset”: The cryptocurrency being transferred (e.g. Ethereum).

• “value”: The amount of cryptocurrency to be transferred.

• “Type”: The type of transaction, which can be one of the following:

• “Send”: Transfers funds from your account to another user.

• “Receive”: Transfers funds from another user to your wallet.

The problem: the required ‘type’ parameter was not sent

In your case, it appears that you are sending a missing or empty value for the “type” parameter. This can be caused by a number of factors, including:

• Incorrectly formatted API request.

• Misunderstanding the Binance API documentation or user guide.

• Using an outdated or incompatible version of the Binance API client library.

Solution: Add a required “type” parameter

To resolve this issue, you need to ensure that the “type” parameter is included in your API request. You can do the following:

Option 1: Specify the transaction type manually

You can also specify the transaction type manually during the API request:

const params = {
"asset": "ETH",
'value': 100, // in wei
'type': 'send' // or any other valid value (e.g. "receive", "gasLimit")
};

Option 2: Update your Binance API client library

Make sure you are using the latest version of the Binance API client library. You can find updates in the official Binance documentation.

Additional Tips

• Pay attention to the size and structure of your API request. Make sure all parameters are properly formatted and included.

• Verify that your application is running with the appropriate permissions for API requests.

• Please keep an eye on Binance API policy or documentation changes that may impact your API call.

Conclusion

The issue you are experiencing with Binance’s universal transfer call requires attention to detail when constructing your Ethereum API request. Adding the required “type” parameter can resolve this issue and successfully process transactions. Remember to check that all required parameters are included in your request and be aware of any changes to Binance’s API policy or documentation.

Example use case

To demonstrate adding the “type” parameter, let’s create a simple JavaScript function that sends a transfer:

function sendTransfer() {
const params = {
"asset": "ETH",
"value": 100,
'to': '0x...', // recipient address
'type': 'send' // or any other valid value (e.g. "receive")
};
fetch(' {
method: 'POST',
headers: {
"Content-Type": "application/json"
},
body: JSON.stringify(params)
})
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error(error));
}

Following the steps below will ensure that your Ethereum API requests are properly formatted and successfully executed on the Binance Exchange.