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Elixir SDK for the Stellar network.
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lib/tx_build/payment.ex
defmodule Stellar.TxBuild.Payment do
@moduledoc """
Sends an amount in a specific asset to a destination account.
"""
import Stellar.TxBuild.Validations,
only: [
validate_account: 1,
validate_asset: 1,
validate_amount: 1,
validate_optional_account: 1
]
alias Stellar.TxBuild.{Account, Amount, Asset, OptionalAccount}
alias StellarBase.XDR.{OperationBody, OperationType, Operations.Payment}
@behaviour Stellar.TxBuild.XDR
@type t :: %__MODULE__{
destination: Account.t(),
asset: Asset.t(),
amount: Amount.t(),
source_account: OptionalAccount.t()
}
defstruct [:destination, :asset, :amount, :source_account]
@impl true
def new(args, opts \\ [])
def new(args, _opts) when is_list(args) do
destination = Keyword.get(args, :destination)
asset = Keyword.get(args, :asset)
amount = Keyword.get(args, :amount)
source_account = Keyword.get(args, :source_account)
with {:ok, destination} <- validate_account({:destination, destination}),
{:ok, asset} <- validate_asset({:asset, asset}),
{:ok, amount} <- validate_amount({:amount, amount}),
{:ok, source_account} <- validate_optional_account({:source_account, source_account}) do
%__MODULE__{
destination: destination,
asset: asset,
amount: amount,
source_account: source_account
}
end
end
def new(_args, _opts), do: {:error, :invalid_operation_attributes}
@impl true
def to_xdr(%__MODULE__{destination: destination, asset: asset, amount: amount}) do
op_type = OperationType.new(:PAYMENT)
destination = Account.to_xdr(destination)
asset = Asset.to_xdr(asset)
amount = Amount.to_xdr(amount)
destination
|> Payment.new(asset, amount)
|> OperationBody.new(op_type)
end
end