Solana: Unable to get latest blockhash: Method not found Connection.getRecentBlockhash in vanilla javascript applet

It looks like you’re facing an issue with retrieving recent block hashes from the Solana blockchain in a vanilla JavaScript mini app using HTML and AJAX with a CDN.

The error message Method not found at Connection.getRecentBlockhash on vanilla javascript indicates that there is no method called getRecentBlockhash available in the Connection object, which is likely due to a compatibility issue or an outdated library.

Here’s an article that should help you resolve this issue:

Failed to Get Recent Block Hash from Solana Blockchain with Vanilla JavaScript Mini App

Error Message:

Method not found at Connection.getRecentBlockhash on vanilla javascript

Solution:

• Check the libraries used: Make sure you’re using a library that supports recent block hashes, such as solana-connect or solo-js. You can check the documentation for the library you’re using to see if it provides recent block hash functionality.

• Use the getRecentBlockhashAsync method: Instead of calling getRecentBlockhash, try using the getRecentBlockhashAsync method, which returns an asynchronous function that retrieves the latest block hash.

Here’s an example:

const connection = new Web3Connection(url); // Replace with your Solana wallet URL


async function getRecentBlockhash() {

  const recentHash = await connection.getRecentBlockhashAsync();

  return recentHash;

}

Code Example:

CDN Setup:

If you're using a CDN, make sure to add the following script tag to your HTML: