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Elixir SDK for the Stellar network.
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lib/tx_build/transaction_envelope.ex
defmodule Stellar.TxBuild.TransactionEnvelope do
@moduledoc """
`TransactionEnvelope` struct definition.
"""
alias Stellar.TxBuild.{Signature, Transaction, TransactionSignature}
alias StellarBase.XDR.{
EnvelopeType,
TransactionV1Envelope,
TransactionEnvelope
}
@behaviour Stellar.TxBuild.XDR
@type signatures :: list(Signature.t())
@type t :: %__MODULE__{tx: Transaction.t(), signatures: signatures()}
defstruct [:tx, :signatures]
@impl true
def new(%Transaction{} = tx, signatures) when is_list(signatures) do
%__MODULE__{tx: tx, signatures: signatures}
end
@impl true
def to_xdr(%__MODULE__{tx: tx, signatures: signatures}) do
envelope_type = EnvelopeType.new(:ENVELOPE_TYPE_TX)
decorated_signatures = TransactionSignature.sign(tx, signatures)
tx
|> Transaction.to_xdr()
|> TransactionV1Envelope.new(decorated_signatures)
|> TransactionEnvelope.new(envelope_type)
end
@spec to_base64(tx_envelope_xdr :: TransactionEnvelope.t()) :: String.t()
def to_base64(%TransactionEnvelope{} = tx_envelope_xdr) do
tx_envelope_xdr
|> TransactionEnvelope.encode_xdr!()
|> Base.encode64()
end
end