createAccountWithSeed static method

TransactionInstruction createAccountWithSeed({ required Pubkey fromPubkey, required Pubkey newAccountPubkey, required Pubkey basePubkey, required String seed, required bu64 lamports, required bu64 space, required Pubkey programId, })

Creates a transaction instruction that creates a new account at an address generated with fromPubkey, a seed, and programId.

Keys:

• fromPubkey The account that will transfer lamports to the created account.
• newAccountPubkey The public key of the created account. Must be pre-calculated with Pubkey.createWithSeed().

Data:

• basePubkey The base public key used to derive the address of the created account. Must be the same as the base key used to create newAccountPubkey.
• seed The seed used to derive the address of the created account. Must be the same as the seed used to create newAccountPubkey.
• lamports The amount of lamports to transfer to the created account.
• space The amount of space in bytes to allocate to the created account.
• programId The public key of the program to assign as the owner of the created account.

Implementation

static TransactionInstruction createAccountWithSeed({
  required final Pubkey fromPubkey,
  required final Pubkey newAccountPubkey,
  required final Pubkey basePubkey,
  required final String seed,
  required final bu64 lamports,
  required final bu64 space,
  required final Pubkey programId,
}) {
  final List<AccountMeta> keys = [
    AccountMeta.signerAndWritable(fromPubkey),
    AccountMeta.writable(newAccountPubkey),
    if (fromPubkey != basePubkey)
      AccountMeta.signer(basePubkey),
  ];

  final List<Iterable<int>> data = [
    borsh.pubkey.encode(basePubkey.toBase58()),
    borsh.rustString().encode(seed),
    borsh.u64.encode(lamports),
    borsh.u64.encode(space),
    borsh.pubkey.encode(programId.toBase58()),
  ];

  return _instance.createTransactionIntruction(
    SystemInstruction.createWithSeed,
    keys: keys,
    data: data,
  );
}