/// <inheritdoc />
public async Task OnMessageAsync(IAgentContext agentContext, UnpackedMessageContext messageContext)
{
var message = messageContext.GetMessage <AnyAgentMessage>();
var requestDecorator = message.FindDecorator <PaymentRequestDecorator>("payment_request");
if (requestDecorator != null)
{
var record = new PaymentRecord
{
ConnectionId = messageContext.Connection.Id,
Details = requestDecorator.Details,
ReferenceId = requestDecorator.Details.Id,
Address = requestDecorator.Method.Data.PayeeId,
Amount = requestDecorator.Details.Total.Amount.Value
};
await record.TriggerAsync(PaymentTrigger.RequestReceived);
await _recordService.AddAsync(agentContext.Wallet, record);
if (messageContext.ContextRecord != null)
{
messageContext.ContextRecord.SetTag("PaymentRecordId", record.Id);
await _recordService.UpdateAsync(agentContext.Wallet, messageContext.ContextRecord);
}
}
var receiptDecorator = message.FindDecorator <PaymentReceiptDecorator>("payment_receipt");
if (receiptDecorator != null)
{
var search = await _recordService.SearchAsync <PaymentRecord>(
wallet : agentContext.Wallet,
query : SearchQuery.Equal(nameof(PaymentRecord.ReferenceId), receiptDecorator.RequestId),
options : null,
count : 5);
var record = search.FirstOrDefault() ?? new PaymentRecord();
record.ReceiptId = receiptDecorator.TransactionId;
await record.TriggerAsync(PaymentTrigger.ReceiptReceived);
if (search.Any())
{
await _recordService.UpdateAsync(agentContext.Wallet, record);
}
else
{
await _recordService.AddAsync(agentContext.Wallet, record);
}
}
}
public async Task <PaymentRecord> AttachPaymentRequestAsync(IAgentContext context, AgentMessage agentMessage, PaymentDetails details, PaymentAddressRecord addressRecord = null)
{
// TODO: Add validation
var paymentRecord = new PaymentRecord
{
Address = addressRecord.Address,
Method = "sov",
Amount = details.Total.Amount.Value,
Details = details
};
details.Id = details.Id ?? paymentRecord.Id;
paymentRecord.ReferenceId = details.Id;
await paymentRecord.TriggerAsync(PaymentTrigger.RequestSent);
await recordService.AddAsync(context.Wallet, paymentRecord);
agentMessage.AddDecorator(new PaymentRequestDecorator
{
Method = new PaymentMethod
{
SupportedMethods = "sov",
Data = new PaymentMethodData
{
PayeeId = addressRecord.Address,
SupportedNetworks = new[] { "Sovrin MainNet" }
}
},
Details = details
}, "payment_request");
return(paymentRecord);
}
/// <inheritdoc />
public async Task MakePaymentAsync(IAgentContext agentContext, PaymentRecord paymentRecord,
PaymentAddressRecord addressFromRecord = null)
{
if (paymentRecord.Amount == 0)
{
throw new AgentFrameworkException(ErrorCode.InvalidRecordData, "Cannot make a payment with 0 amount");
}
await paymentRecord.TriggerAsync(PaymentTrigger.ProcessPayment);
if (paymentRecord.Address == null)
{
throw new AgentFrameworkException(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 AgentFrameworkException(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 Ledger.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);
}