View Source BitcoinLib.Transaction.Spec (BitcoinLib v0.3.0)

A simplified version of a %BitcoinLib.Transaction that can be filled with human readable formats

Link to this section Summary

Functions

Adds a human readable input into a transaction spec

Adds a human readable output into a transaction spec

With the help of a privat key, transforms a transaction into a signed binary that can be sent on the network so funds can be spent

Link to this section Functions

@spec add_input!(
  %BitcoinLib.Transaction.Spec{inputs: term(), outputs: term()},
  binary() | list()
) ::
  %BitcoinLib.Transaction.Spec{inputs: term(), outputs: term()}

Adds a human readable input into a transaction spec

examples

Examples

iex> %BitcoinLib.Transaction.Spec{}
...> |> BitcoinLib.Transaction.Spec.add_input!(
...>   txid: "6925062befcf8aafae78de879fec2535ec016e251c19b1c0792993258a6fda26",
...>   vout: 1,
...>   redeem_script: "76a914c39658833d83f2299416e697af2fb95a998853d388ac"
...> )
%BitcoinLib.Transaction.Spec{
  inputs: [
    %BitcoinLib.Transaction.Spec.Input{
      txid: "6925062befcf8aafae78de879fec2535ec016e251c19b1c0792993258a6fda26",
      vout: 1,
      redeem_script: [
        %BitcoinLib.Script.Opcodes.Stack.Dup{},
        %BitcoinLib.Script.Opcodes.Crypto.Hash160{},
        %BitcoinLib.Script.Opcodes.Data{value: <<0xc39658833d83f2299416e697af2fb95a998853d3::160>>},
        %BitcoinLib.Script.Opcodes.BitwiseLogic.EqualVerify{},
        %BitcoinLib.Script.Opcodes.Crypto.CheckSig{script: <<0x76a914c39658833d83f2299416e697af2fb95a998853d388ac::200>>}
      ]
    }
  ],
  outputs: []
}
Link to this function

add_output(spec, script_pub_key, value)

View Source
@spec add_output(
  %BitcoinLib.Transaction.Spec{inputs: term(), outputs: term()},
  binary() | list(),
  integer()
) :: %BitcoinLib.Transaction.Spec{inputs: term(), outputs: term()}

Adds a human readable output into a transaction spec

examples

Examples

iex> p2pkh_script = BitcoinLib.Script.Types.P2pkh.create(<<0xad6a62e2d23d1c060897cd0cc79c42dad715e4c7::160>>)
...> amount = 1000
...> transaction_spec = %BitcoinLib.Transaction.Spec{}
...> transaction_spec
...> |> BitcoinLib.Transaction.Spec.add_output(p2pkh_script, amount)
%BitcoinLib.Transaction.Spec{
  inputs: [],
  outputs: [%BitcoinLib.Transaction.Spec.Output{
    script_pub_key: [
      %BitcoinLib.Script.Opcodes.Stack.Dup{},
      %BitcoinLib.Script.Opcodes.Crypto.Hash160{},
      %BitcoinLib.Script.Opcodes.Data{value: <<0xad6a62e2d23d1c060897cd0cc79c42dad715e4c7::160>>},
      %BitcoinLib.Script.Opcodes.BitwiseLogic.EqualVerify{},
      %BitcoinLib.Script.Opcodes.Crypto.CheckSig{}
    ],
    value: 1000
    }
  ]
}
Link to this function

sign_and_encode(spec, private_key)

View Source
@spec sign_and_encode(
  %BitcoinLib.Transaction.Spec{inputs: term(), outputs: term()},
  %BitcoinLib.Key.PrivateKey{
    chain_code: term(),
    depth: term(),
    fingerprint: term(),
    index: term(),
    key: term(),
    parent_fingerprint: term()
  }
) :: binary()

With the help of a privat key, transforms a transaction into a signed binary that can be sent on the network so funds can be spent

examples

Examples

iex>  private_key = BitcoinLib.Key.PrivateKey.from_seed_phrase(
...>    "rally celery split order almost twenty ignore record legend learn chaos decade"
...>  )
...>%BitcoinLib.Transaction.Spec{
...>  inputs: [
...>    %BitcoinLib.Transaction.Spec.Input{
...>      txid: "6925062befcf8aafae78de879fec2535ec016e251c19b1c0792993258a6fda26",
...>      vout: 1,
...>      redeem_script: "76a914c39658833d83f2299416e697af2fb95a998853d388ac"
...>    }
...>  ],
...>  outputs: [%BitcoinLib.Transaction.Spec.Output{
...>    script_pub_key: [
...>      %BitcoinLib.Script.Opcodes.Stack.Dup{},
...>      %BitcoinLib.Script.Opcodes.Crypto.Hash160{},
...>      %BitcoinLib.Script.Opcodes.Data{value: <<0xad6a62e2d23d1c060897cd0cc79c42dad715e4c7::160>>},
...>      %BitcoinLib.Script.Opcodes.BitwiseLogic.EqualVerify{},
...>      %BitcoinLib.Script.Opcodes.Crypto.CheckSig{}
...>    ],
...>    value: 1000
...>    }
...>  ]
...>}
...>  |> BitcoinLib.Transaction.Spec.sign_and_encode(private_key)
"010000000126da6f8a25932979c0b1191c256e01ec3525ec9f87de78aeaf8acfef2b062569010000006a47304402203d219d9ae0cb87ff298ea0d54757abbb8a8a07c724b0d3979476f572178a9c2402203b026acc059654813b5ad6f5ad24422cbc4b92a76193f5765c8d77cb5ad3ec4f012102702ded1cca9816fa1a94787ffc6f3ace62cd3b63164f76d227d0935a33ee48c3ffffffff01e8030000000000001976a914ad6a62e2d23d1c060897cd0cc79c42dad715e4c788ac00000000"