redelegate static method

Future<List<TransactionInstruction>> redelegate({ required SolanaRPC connection, required SolAddress stakePoolAddress, required SolAddress sourceVoteAccount, required BigInt sourceTransientStakeSeed, required SolAddress destinationVoteAccount, required BigInt destinationTransientStakeSeed, required BigInt ephemeralStakeSeed, required BigInt lamports, })

Creates instructions required to redelegate stake.

Implementation

static Future<List<TransactionInstruction>> redelegate({
  required SolanaRPC connection,
  required SolAddress stakePoolAddress,
  required SolAddress sourceVoteAccount,
  required BigInt sourceTransientStakeSeed,
  required SolAddress destinationVoteAccount,
  required BigInt destinationTransientStakeSeed,
  required BigInt ephemeralStakeSeed,
  required BigInt lamports,
}) async {
  final stakePool = await connection
      .request(SolanaRPCGetStakePoolAccount(address: stakePoolAddress));
  if (stakePool == null) {
    throw const MessageException("Stake pool account does not found.");
  }

  final stakePoolWithdrawAuthority =
      StakePoolProgramUtils.findWithdrawAuthorityProgramAddress(
    stakePoolAddress: stakePoolAddress,
  );

  final sourceValidatorStake = StakePoolProgramUtils.findStakeProgramAddress(
    voteAccountAddress: sourceVoteAccount,
    stakePoolAddress: stakePoolAddress,
  );

  final sourceTransientStake =
      StakePoolProgramUtils.findTransientStakeProgramAddress(
    voteAccountAddress: sourceVoteAccount,
    stakePoolAddress: stakePoolAddress,
    seed: sourceTransientStakeSeed,
  );

  final destinationValidatorStake =
      StakePoolProgramUtils.findStakeProgramAddress(
    voteAccountAddress: destinationVoteAccount,
    stakePoolAddress: stakePoolAddress,
  );

  final destinationTransientStake =
      StakePoolProgramUtils.findTransientStakeProgramAddress(
    voteAccountAddress: destinationVoteAccount,
    stakePoolAddress: stakePoolAddress,
    seed: destinationTransientStakeSeed,
  );
  final ephemeralStake =
      StakePoolProgramUtils.findEphemeralStakeProgramAddress(
    stakePoolAddress: stakePoolAddress,
    seed: ephemeralStakeSeed,
  );

  final instructions = <TransactionInstruction>[];

  instructions.add(
    StakePoolProgram.redelegate(
        stakePool: stakePool.address,
        staker: stakePool.staker,
        validatorList: stakePool.validatorList,
        reserveStake: stakePool.reserveStake,
        stakePoolWithdrawAuthority: stakePoolWithdrawAuthority.address,
        ephemeralStake: ephemeralStake.address,
        sourceValidatorStake: sourceValidatorStake.address,
        sourceTransientStake: sourceTransientStake.address,
        destinationValidatorStake: destinationValidatorStake.address,
        destinationTransientStake: destinationTransientStake.address,
        validator: destinationVoteAccount,
        layout: StakePoolReDelegateLayout(
            lamports: lamports,
            sourceTransientStakeSeed: sourceTransientStakeSeed,
            ephemeralStakeSeed: ephemeralStakeSeed,
            destinationTransientStakeSeed: destinationTransientStakeSeed)),
  );

  return instructions;
}