/// <inheritdoc />
public async Task MakePaymentAsync(IAgentContext agentContext, PaymentRecord paymentRecord,
PaymentAddressRecord addressFromRecord = null)
{
if (paymentRecord.Amount == 0)
{
throw new AriesFrameworkException(ErrorCode.InvalidRecordData, "Cannot make a payment with 0 amount");
}
await paymentRecord.TriggerAsync(PaymentTrigger.ProcessPayment);
if (paymentRecord.Address == null)
{
throw new AriesFrameworkException(ErrorCode.InvalidRecordData, "Payment record is missing an address");
}
var provisioning = await provisioningService.GetProvisioningAsync(agentContext.Wallet);
if (addressFromRecord == null)
{
addressFromRecord = await GetDefaultPaymentAddressAsync(agentContext);
}
await RefreshBalanceAsync(agentContext, addressFromRecord);
if (addressFromRecord.Balance < paymentRecord.Amount)
{
throw new AriesFrameworkException(ErrorCode.PaymentInsufficientFunds,
"Address doesn't have enough funds to make this payment");
}
var txnFee = await GetTransactionFeeAsync(agentContext, TransactionTypes.XFER_PUBLIC);
var paymentResult = await IndyPayments.BuildPaymentRequestAsync(
wallet : agentContext.Wallet,
submitterDid : null,
inputsJson : addressFromRecord.Sources.Select(x => x.Source).ToJson(),
outputsJson : new[]
{
new IndyPaymentOutputSource
{
Amount = paymentRecord.Amount,
Recipient = paymentRecord.Address
},
new IndyPaymentOutputSource
{
Recipient = addressFromRecord.Address,
Amount = addressFromRecord.Balance - paymentRecord.Amount - txnFee
}
}.ToJson(),
extra : null);
var response = await IndyLedger.SignAndSubmitRequestAsync(await agentContext.Pool, agentContext.Wallet,
provisioning.Endpoint.Did, paymentResult.Result);
var paymentResponse = await IndyPayments.ParsePaymentResponseAsync(TokenConfiguration.MethodName, response);
var paymentOutputs = paymentResponse.ToObject <IList <IndyPaymentOutputSource> >();
var paymentOutput = paymentOutputs.SingleOrDefault(x => x.Recipient == paymentRecord.Address);
paymentRecord.ReceiptId = paymentOutput.Receipt;
addressFromRecord.Sources = paymentOutputs
.Where(x => x.Recipient == addressFromRecord.Address)
.Select(x => new IndyPaymentInputSource
{
Amount = x.Amount,
PaymentAddress = x.Recipient,
Source = x.Receipt
})
.ToList();
await recordService.UpdateAsync(agentContext.Wallet, paymentRecord);
await recordService.UpdateAsync(agentContext.Wallet, addressFromRecord);
}
