Burn Tokens & Close Accounts

Code Breakdown

1. Burn Tokens

Burns all tokens in a specified token account:

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burn_instruction = burn(
    BurnParams(
        program_id=TOKEN_PROGRAM_ID,
        account=token_account_pubkey,
        mint=mint,
        owner=owner,
        amount=token_balance
    )
)
transaction.add(burn_instruction)

• Token Balance Check: Fetches the account’s token balance before proceeding.

• Mint Address: Identifies the token mint associated with the account.

2. Close Account

Closes the token account to reclaim rent-exempt lamports:

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close_account_instruction = close_account(
    CloseAccountParams(
        program_id=TOKEN_PROGRAM_ID,
        account=token_account_pubkey,
        dest=owner,
        owner=owner
    )
)
transaction.add(close_account_instruction)

• Destination: Remaining lamports are transferred to the owner.

3. Enhanced Compute Budget

Adjusts the compute budget to handle complex operations:

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transaction.add(set_compute_unit_price(100_000))
transaction.add(set_compute_unit_limit(100_000))

4. Transaction Execution

Signs and sends the transaction:

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transaction.sign(agent.wallet)
txn_sig = client.send_transaction(transaction, agent.wallet, opts=TxOpts(skip_preflight=True)).value

• Ensures secure and authenticated processing.

Key Features

1. Comprehensive Functionality

   • Handles both token burning and account closure within a single process.

2. Batch Processing

   • The process_multiple_accounts method allows for the efficient processing of multiple accounts:

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   for token_account in token_accounts:
       BurnManager.burn_and_close_account(agent, token_account)

3. Error Handling

   • Captures errors during balance fetching, instruction preparation, and transaction execution:

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   except Exception as e:
       print(f"Error sending transaction for {token_account}: {e}")

4. Compute Budget Adjustment

   • Ensures successful execution of complex transactions by increasing compute unit limits.