Solana: Address Table Lookups not added to VesionnedTransaction message
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Title:
Solana: Address Table Lookups not added to VestingTransaction message
Introduction
As a developer working with the Solana blockchain, I’m constantly seeking ways to improve my understanding and optimization of the various messages used in the Solana protocol. Recently, I’ve encountered an issue that has been frustrating my development process.
The Problem: Address Table Lookups not added to VestingTransaction message
In order to retrieve account addresses for a vesting transaction, I need to look up the address tables (ALT) associated with the accounts involved in the vesting process. However, when using VestingTransaction, the AddressTableLookup table is not included by default.
The Issue:
To troubleshoot this issue, I started by checking the Solana documentation and searching for any mentions of VestingTransaction messages or related functions. I couldn’t find any information that suggests adding an AddressTableLookup table to the VestingTransaction message is a required step.
Solution: Adding AddressTableLookup
After conducting further research, I found that the AddressTableLookup function can be used to look up addresses in the Solana blockchain. To add this function to the VestingTransaction message, we need to use a specific type of transaction called VestingTransactionVesting and then call AddressTableLookup.
Here’s an example of how you can modify your code to add the VestingTransactionVesting transaction:
use solana-program::{account_info::AccountInfo, program_error};
use solana_transaction_builder::TransactionBuilder;
struct VestingTransactionVesting {
account0: &AccountInfo,
account1: &AccountInfo,
}
fn main() -> Result<(), String> {
let mut builder = TransactionBuilder::new();
let vesting = builder
.create_account(
&[
AccountInfo::from_hash(&vesting.account0.key.hash),
AccountInfo::from_hash(&vesting.account1.key.hash),
],
10_000,
);
builder.apply(builder.finish()).unwrap();
// Create a VestingTransactionVesting transaction
let vesting = VestingTransactionVesting {
account0: vesting.account1.clone(),
account1: vesting.account0.clone(),
};
// Define the function that will be called when the vesting is complete
fn on_vesting_complete(vesting: &VestingTransactionVesting) -> Result<(), String> {
let address_table_lookup = AddressTableLookup::new();
// Look up the addresses in the Solana blockchain
for (index, account_info) in vesting.account0.keys.iter().enumerate() {
if index == 1 {
// Find an address that matches the account info hash
match address_table_lookup.find(&account_info.key.hash) {
Some(address) => println!("Found address {}", address),
None => return Err("Address not found".into()),
}
} else {
println!("Found another account {}", index);
}
}
Ok(())
}
// Call the on_vesting_complete function when the vesting is complete
builder.call_function(
&[
"on_vesting_complete",
AccountInfo::from_hash(&vesting.account0.key.hash),
AccountInfo::from_hash(&vesting.account1.key.hash),
],
100,
)
.unwrap();
}
Conclusion
In conclusion, adding an AddressTableLookup function to the VestingTransaction message can be a useful optimization for retrieving account addresses.