depositSol static method

Future<List<TransactionInstruction>> depositSol({ required SolanaProvider connection, required SolAddress stakePoolAddress, required SolAddress from, required SolAddress userSolTransfer, required BigInt lamports, SolAddress? destinationTokenAccount, SolAddress? referrerTokenAccount, required SolAddress depositAuthority, })

Creates instructions required to deposit sol to stake pool.

Implementation

static Future<List<TransactionInstruction>> depositSol({
  required SolanaProvider connection,
  required SolAddress stakePoolAddress,
  required SolAddress from,
  required SolAddress userSolTransfer,
  required BigInt lamports,
  SolAddress? destinationTokenAccount,
  SolAddress? referrerTokenAccount,
  required SolAddress depositAuthority,
}) async {
  final fromBalance = await connection.request(
    SolanaRequestGetBalance(account: from),
  );
  if (fromBalance < lamports) {
    throw const SolanaPluginException('Not enough SOL to deposit into pool.');
  }

  final stakePool = await connection.request(
    SolanaRPCGetStakePoolAccount(address: stakePoolAddress),
  );
  if (stakePool == null) {
    throw const SolanaPluginException('Stake pool account does not found.');
  }

  final instructions = <TransactionInstruction>[];

  // Create the ephemeral SOL account
  instructions.add(
    SystemProgram.transfer(
      from: from,
      to: userSolTransfer,
      layout: SystemTransferLayout(lamports: lamports),
    ),
  );

  // Create token account if not specified
  if (destinationTokenAccount == null) {
    final associatedAddress =
        AssociatedTokenAccountProgramUtils.associatedTokenAccount(
          mint: stakePool.poolMint,
          owner: from,
        );
    instructions.add(
      AssociatedTokenAccountProgram.associatedTokenAccountIdempotent(
        payer: from,
        associatedToken: associatedAddress.address,
        owner: from,
        mint: stakePool.poolMint,
      ),
    );
    destinationTokenAccount = associatedAddress.address;
  }

  final withdrawAuthority =
      StakePoolProgramUtils.findWithdrawAuthorityProgramAddress(
        stakePoolAddress: stakePoolAddress,
      );
  instructions.add(
    StakePoolProgram.depositSol(
      stakePool: stakePoolAddress,
      reserveStake: stakePool.reserveStake,
      fundingAccount: userSolTransfer,
      destinationPoolAccount: destinationTokenAccount,
      managerFeeAccount: stakePool.managerFeeAccount,
      referralPoolAccount: referrerTokenAccount ?? destinationTokenAccount,
      poolMint: stakePool.poolMint,
      layout: StakePoolDepositSolLayout(lamports: lamports),
      withdrawAuthority: withdrawAuthority.address,
      depositAuthority: depositAuthority,
    ),
  );

  return instructions;
}