Decoding Base64 Encoded Data in Solana: A Guide
As a beginner on the Solana blockchain, you’re likely no stranger to WebSockets and Subscriptions. However, when dealing with base64 encoded data, things can get tricky.
In this article, we’ll take a closer look at how to decode base64 encoded data using the Raydium Authority V4 (RV4) in Solana.
The Problem: Base64 Encoding and Decoding
Base64 encoding is a widely used method for representing binary data in text format. It’s commonly used when transmitting sensitive information across networks, as it allows for compact representation of large amounts of data. However, when receiving the encoded data on the other end, you need to decode it back into its original form.
In Solana, the base64 encoding and decoding are handled by the solana-base64-encoded package, which is included in the Solana SDK. To make things more complex, we’ll be using the accountSubscribe method provided by Raydium Authority V4 to subscribe to a specific account’s base vault.
Decoding Base64 Encoded Data
To decode the base64 encoded data, you can use the following approach:
- Subscribe to the specified account and get the account’s base vault.
- Use the
base64::decode()function from the Solana SDK to decompress the base64 string into a buffer or a Uint8Array.
- Decode the buffer or Uint8Array back into its original binary form using the
base64::decode()function.
Here’s some sample code to illustrate this process:
“`rust
use raydium_authority_v4::{
Account,
BaseVault,
};
use solana_sdk::pubkey::{Pubkey, PubkeyCollection};
use solana_sdk::signature::{Signature, SignaturePubkey};
use solana_sdk::transaction::TransactionId;
use solana_sdk::vec::Vec;
// Subscribe to a specific account and get the base vault
async fn subscribe_to_base_vault(
account_id: &str,
pubkey: Pubkey,
) -> Result
// Assuming you have an Account object created from the account ID
let account = Account::from_account_id(Pubkey::from_str(account_id).unwrap());
// Get the base vault for the specified account
let vault = account.base_vault().await;
Ok(vault)
}
// Subscribe to a specific account and get the base vault using RV4
async fn subscribe_to_base_vault_rv4(
account_id: &str,
pubkey: Pubkey,
) -> Result
// Assuming you have an Account object created from the account ID
let account = Account::from_account_id(Pubkey::from_str(account_id).unwrap());
// Subscribe to a specific base vault using RV4
let base_vault_rv4 = account.base_vault_rv4().await?;
Ok(base_vault_rv4)
}
// Decode the base64 encoded data back into binary form
async fn decode_base64(data: Vec
// Assuming you have a base64 decoder function provided by RV4
let decoded_data = base64::decode(&data).await?;
Ok(decoded_data)
}
// Example usage:
async fn main() -> Result<(), String> {
// Subscribe to a specific account and get the base vault using RV4
let account_id = “your_account_id_here”;
let pubkey = Pubkey::from_str(“your_pubkey_here”).unwrap();
let base_vault_rv4 = subscribe_to_base_vault_rv4(&account_id, &pubkey).await?;
// Subscribe to a specific account and get the base vault using accountSubscribe
let subscription = accountSubscribe(&base_vault_rv4.base_vault().await, base_vault_rv4.public_key(), “your_account_id_here”, Pubkey::from_str(“your_pubkey_here”).unwrap()).await?;
let base_vault = subscription.get_last_transaction().await?;
// Decode the base64 encoded data back into binary form
let decoded_data = decode_base64(&base_vault.data).await?;
println!(“{:x?