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Elixir SDK for the Stellar network.
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lib/tx_build/clawback.ex
defmodule Stellar.TxBuild.Clawback do
@moduledoc """
Creates a clawback operation.
"""
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.Clawback}
@behaviour Stellar.TxBuild.XDR
@type t :: %__MODULE__{
asset: Asset.t(),
from: Account.t(),
amount: Amount.t(),
source_account: OptionalAccount.t()
}
defstruct [:asset, :from, :amount, :source_account]
@impl true
def new(args, opts \\ [])
def new(args, _opts) when is_list(args) do
from = Keyword.get(args, :from)
asset = Keyword.get(args, :asset)
amount = Keyword.get(args, :amount)
source_account = Keyword.get(args, :source_account)
with {:ok, asset} <- validate_asset({:asset, asset}),
{:ok, from} <- validate_account({:from, from}),
{:ok, amount} <- validate_amount({:amount, amount}),
{:ok, source_account} <- validate_optional_account({:source_account, source_account}) do
%__MODULE__{
asset: asset,
from: from,
amount: amount,
source_account: source_account
}
end
end
def new(_args, _opts), do: {:error, :invalid_operation_attributes}
@impl true
def to_xdr(%__MODULE__{asset: asset, from: from, amount: amount}) do
op_type = OperationType.new(:CLAWBACK)
asset = Asset.to_xdr(asset)
from = Account.to_xdr(from)
amount = Amount.to_xdr(amount)
asset
|> Clawback.new(from, amount)
|> OperationBody.new(op_type)
end
end