public IActionResult GetProposedOnChainPaymentMethodPreview(
string storeId,
string cryptoCode,
[FromBody] OnChainPaymentMethodDataPreview paymentMethodData,
int offset = 0, int amount = 10)
{
if (!GetCryptoCodeWallet(cryptoCode, out var network, out BTCPayWallet _))
{
return(NotFound());
}
if (string.IsNullOrEmpty(paymentMethodData?.DerivationScheme))
{
ModelState.AddModelError(nameof(OnChainPaymentMethodData.DerivationScheme),
"Missing derivationScheme");
}
if (!ModelState.IsValid)
{
return(this.CreateValidationError(ModelState));
}
DerivationSchemeSettings strategy;
try
{
strategy = DerivationSchemeSettings.Parse(paymentMethodData.DerivationScheme, network);
}
catch
{
ModelState.AddModelError(nameof(OnChainPaymentMethodData.DerivationScheme),
"Invalid Derivation Scheme");
return(this.CreateValidationError(ModelState));
}
var deposit = new NBXplorer.KeyPathTemplates(null).GetKeyPathTemplate(DerivationFeature.Deposit);
var line = strategy.AccountDerivation.GetLineFor(deposit);
var result = new OnChainPaymentMethodPreviewResultData();
for (var i = offset; i < amount; i++)
{
var derivation = line.Derive((uint)i);
result.Addresses.Add(
new
OnChainPaymentMethodPreviewResultData.
OnChainPaymentMethodPreviewResultAddressItem()
{
KeyPath = deposit.GetKeyPath((uint)i).ToString(),
Address = strategy.Network.NBXplorerNetwork.CreateAddress(strategy.AccountDerivation,
line.KeyPathTemplate.GetKeyPath((uint)i),
derivation.ScriptPubKey).ToString()
});
}
return(Ok(result));
}
public IActionResult GetOnChainPaymentMethodPreview(
string storeId,
string cryptoCode,
int offset = 0, int amount = 10)
{
if (!GetCryptoCodeWallet(cryptoCode, out var network, out BTCPayWallet _))
{
return(NotFound());
}
var paymentMethod = GetExistingBtcLikePaymentMethod(cryptoCode);
if (string.IsNullOrEmpty(paymentMethod?.DerivationScheme))
{
return(NotFound());
}
try
{
var strategy = DerivationSchemeSettings.Parse(paymentMethod.DerivationScheme, network);
var deposit = new NBXplorer.KeyPathTemplates(null).GetKeyPathTemplate(DerivationFeature.Deposit);
var line = strategy.AccountDerivation.GetLineFor(deposit);
var result = new OnChainPaymentMethodPreviewResultData();
for (var i = offset; i < amount; i++)
{
var address = line.Derive((uint)i);
result.Addresses.Add(
new OnChainPaymentMethodPreviewResultData.OnChainPaymentMethodPreviewResultAddressItem()
{
KeyPath = deposit.GetKeyPath((uint)i).ToString(),
Address = address.ScriptPubKey.GetDestinationAddress(strategy.Network.NBitcoinNetwork)
.ToString()
});
}
return(Ok(result));
}
catch
{
ModelState.AddModelError(nameof(OnChainPaymentMethodData.DerivationScheme),
"Invalid Derivation Scheme");
return(this.CreateValidationError(ModelState));
}
}