Class: SolanaRuby::TransactionInstruction

Inherits:
Object
  • Object
show all
Defined in:
lib/solana_ruby/transaction_instruction.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(keys:, program_id:, data:) ⇒ TransactionInstruction

Returns a new instance of TransactionInstruction.



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# File 'lib/solana_ruby/transaction_instruction.rb', line 7

def initialize(keys:, program_id:, data:)
  @keys = keys           # Array of account metadata hashes
  @program_id = program_id  # Program ID in Base58
  @data = data           # Binary data for the instruction
end

Instance Attribute Details

#data ⇒ Object

Returns the value of attribute data.



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# File 'lib/solana_ruby/transaction_instruction.rb', line 5

def data
  @data
end

#keys ⇒ Object

Returns the value of attribute keys.



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# File 'lib/solana_ruby/transaction_instruction.rb', line 5

def keys
  @keys
end

#program_id ⇒ Object

Returns the value of attribute program_id.



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# File 'lib/solana_ruby/transaction_instruction.rb', line 5

def program_id
  @program_id
end

Instance Method Details

#serialize ⇒ Object 



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# File 'lib/solana_ruby/transaction_instruction.rb', line 13

def serialize
  serialized_instruction = ""

  # Convert and serialize the program ID from Base58 to binary
  program_id_binary = Base58.base58_to_binary(@program_id)
  serialized_instruction << program_id_binary

  # Serialize the number of keys
  serialized_instruction << [@keys.length].pack("C")

  # Serialize each key (pubkey in binary, is_signer, is_writable flags)
  @keys.each do |key_meta|
    # Convert public key to binary and serialize it
    pubkey_binary = Base58.base58_to_binary(key_meta[:pubkey])
    serialized_instruction << pubkey_binary

    # Serialize meta flags (is_signer and is_writable)
    meta_flags = (key_meta[:is_signer] ? 1 : 0) | (key_meta[:is_writable] ? 2 : 0)
    serialized_instruction << [meta_flags].pack("C")
  end

  # Serialize data length (encoded as a single byte, can adjust with C, S, and L accordingly if data is larger)
  serialized_instruction << [@data.length].pack("C")

  # Serialize the actual data in binary format
  serialized_instruction << @data
  serialized_instruction
end