Error sending ether on Ethereum: string must be a hexadecimal string when sending
When interacting with the Ethereum blockchain using web applications, certain requirements must be met to avoid errors and ensure successful transactions. One of these requirements is sending Ether (ETH) from an external wallet or through third-party services.
In this article, we will examine why sending the specified string “0x483a49dcf80B932cf94734B8fd5d3p9aa508a933” failed and what the error is. We will then discuss how to fix these issues and learn about another basic requirement for sending ETH.
The Problem: Sending a String as a Hexadecimal String
When sending Ether, the sender must provide the recipient’s private key in hexadecimal string format. However, the code provided, `0x483a49dcf80B932cf94734B8fd5d3p9aa508a933'', is not in this format.
When creating an address in the Ethereum Web3 library, you cannot simply use a simple string like0x483a49dcf80B932cf94734B8fd5d3'' without converting it to a hexadecimal string. This is because theWeb3.toChecksumAddressfunction expects the input as a checksum hexadecimal string.
The error
You can use the following code to resolve this issue:
cc = '0x483a49dcf80B932cf94734B8fd5d3p9aa508a933'
Addition = Web3.toChecksumAddress(cc)
Converting the input string to a hexadecimal string using the "toString(16)" method ensures that it is in the correct format for sending Ether.
Additional requirement: When sending a string, it must be a hexadecimal string
In addition to this issue, when sending a string as a hexadecimal string with a checksum, another important consideration is what happens if the input string contains characters other than letters and numbers (such as special characters, spaces, or punctuation marks).
For example:
cc = '0x483a49dcf80B932cf94734B8fd5d3p9aa508a933!@#'
In this case, the Web3.toChecksumAddressfunction will throw an error because it does not accept non-ASCII characters.
Conclusion
To successfully send Ether from external wallets or through third-party services, you must ensure that the sender provides the recipient's private key in a checksum hexadecimal string format. The code provided must be modified to convert the input string to a hexadecimal string using thetoString(16)’ method before passing it to the `Web3.toChecksumAddress’ function.
By following these guidelines and understanding the requirements for sending Ether, you can ensure that your web applications communicate with the Ethereum blockchain without errors.