I can walk you through the process of finding BUFFER_PUBKEY to upgrade a Solana program. Here is an article that describes how to get and use this key:

Finding BUFFER_PUBKEY

To upgrade a Solana program, you must specify the required public keys as part of your upgrade request. These public keys are used to authenticate your request and ensure that only authorized programs can upgrade the specified contract.

• Review your program’s contract code: Before attempting upgrades, it is important to understand how your program is structured. See your solana-program-upgrade documentation for detailed instructions on specifying these public keys.

• Identify the required public keys

  :

– To upgrade a program using the upgrade_program function provided by Solana SDKs (e.g. solana-program-upgrade), you typically need a single BUFFER_PUBKEY. This key is used for authentication.

– If your upgrade request involves multiple programs, make sure each program has its own unique public key. These keys are critical for authorizing the upgrade process.

How to get “BUFFER_PUBKEY”

While directly obtaining a specific “BUFFER_PUBKEY” may not be possible without access to the Solana network or the codebase of a Solana program, here are some general steps to follow:

–
Use an upgrade library: Solana has several upgrade libraries that can help you upgrade your programs. These libraries often provide tools and functions for generating and verifying public keys.

– For example, the solana-program-upgrade library in solana-program-upgrade provides an easy way to upgrade a program by specifying the required public key.

–
Check the documentation: The official documentation for Solana SDKs should also contain information on how to obtain or generate specific public keys required for upgrades.

Sample upgrade request

Here is an example of what your upgrade request might look like:

const { UpgradeProgram } = require("solana-program-upgrade");
async function main() {
const programId = "your_program_id";
const tokenPubkey = "your_token_pubkey";
// Get the public key of a program or account
const programKey = await solanaProgramUpgrade.getProgramKey(programId);
const programPubkey = wait getProgramPubkey(programId);
// Specify your upgrade request with the required public keys
const upgradeRequest = {
upgradeProgram: new UpgradeProgram(
programId,
programKey.publicKey,
"BUFFER_PUBKEY",
tokenPubkey.publicKey,
),
};
try {
await upgradeProgram(upgradeRequest);
console.log("Upgrade successful.");
} catch ( error ) {
console.error("Error:", error.message);
}
}
main();

In this example, programId and tokenPubkey are placeholders that you should replace with the actual IDs and public keys of your program and token.

Note on direct access to public keys

Please note that directly accessing or retrieving certain Solana public keys without authorization may pose risks. Always make sure you have the necessary permissions and follow best practices when working with Solana’s upgrade features.

For most practical purposes, using upgrade libraries is recommended as they simplify the process of upgrading programs while providing robust security features to protect against unauthorized upgrades.