Uniformize Wallet API's path (#6209)

* Uniformize Wallet API's path

* Rewrite old API path to new API

* Rename routes
This commit is contained in:
Nicolas Dorier
2024-09-12 15:19:10 +09:00
committed by GitHub
parent b4946f4db1
commit 36bada8feb
14 changed files with 561 additions and 674 deletions

View File

@@ -95,10 +95,10 @@ namespace BTCPayServer.Controllers.Greenfield
}
[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet")]
public async Task<IActionResult> ShowOnChainWalletOverview(string storeId, string cryptoCode)
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet")]
public async Task<IActionResult> ShowOnChainWalletOverview(string storeId, string paymentMethodId)
{
if (IsInvalidWalletRequest(cryptoCode, out var network,
if (IsInvalidWalletRequest(paymentMethodId, out var network,
out var derivationScheme, out var actionResult))
return actionResult;
@@ -115,10 +115,10 @@ namespace BTCPayServer.Controllers.Greenfield
}
[Authorize(Policy = Policies.CanViewStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/feerate")]
public async Task<IActionResult> GetOnChainFeeRate(string storeId, string cryptoCode, int? blockTarget = null)
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet/feerate")]
public async Task<IActionResult> GetOnChainFeeRate(string storeId, string paymentMethodId, int? blockTarget = null)
{
if (IsInvalidWalletRequest(cryptoCode, out var network,
if (IsInvalidWalletRequest(paymentMethodId, out var network,
out _, out var actionResult))
return actionResult;
@@ -131,15 +131,15 @@ namespace BTCPayServer.Controllers.Greenfield
}
[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/address")]
public async Task<IActionResult> GetOnChainWalletReceiveAddress(string storeId, string cryptoCode,
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet/address")]
public async Task<IActionResult> GetOnChainWalletReceiveAddress(string storeId, string paymentMethodId,
bool forceGenerate = false)
{
if (IsInvalidWalletRequest(cryptoCode, out var network,
if (IsInvalidWalletRequest(paymentMethodId, out var network,
out var derivationScheme, out var actionResult))
return actionResult;
var kpi = await _walletReceiveService.GetOrGenerate(new WalletId(storeId, cryptoCode), forceGenerate);
var kpi = await _walletReceiveService.GetOrGenerate(new WalletId(storeId, network.CryptoCode), forceGenerate);
if (kpi is null)
{
return BadRequest();
@@ -151,7 +151,7 @@ namespace BTCPayServer.Controllers.Greenfield
{
bip21.QueryParams.Add(PayjoinClient.BIP21EndpointKey,
Request.GetAbsoluteUri(Url.Action(nameof(PayJoinEndpointController.Submit), "PayJoinEndpoint",
new { cryptoCode })));
new { network.CryptoCode })));
}
return Ok(new OnChainWalletAddressData()
@@ -163,28 +163,28 @@ namespace BTCPayServer.Controllers.Greenfield
}
[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
[HttpDelete("~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/address")]
public async Task<IActionResult> UnReserveOnChainWalletReceiveAddress(string storeId, string cryptoCode)
[HttpDelete("~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet/address")]
public async Task<IActionResult> UnReserveOnChainWalletReceiveAddress(string storeId, string paymentMethodId)
{
if (IsInvalidWalletRequest(cryptoCode, out _,
if (IsInvalidWalletRequest(paymentMethodId, out var network,
out _, out var actionResult))
return actionResult;
var addr = await _walletReceiveService.UnReserveAddress(new WalletId(storeId, cryptoCode));
var addr = await _walletReceiveService.UnReserveAddress(new WalletId(storeId, network.CryptoCode));
if (addr is null)
{
return this.CreateAPIError("no-reserved-address",
$"There was no reserved address for {cryptoCode} on this store.");
$"There was no reserved address for {network.CryptoCode} on this store.");
}
return Ok();
}
[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/transactions")]
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet/transactions")]
public async Task<IActionResult> ShowOnChainWalletTransactions(
string storeId,
string cryptoCode,
string paymentMethodId,
[FromQuery] TransactionStatus[]? statusFilter = null,
[FromQuery] string? labelFilter = null,
[FromQuery] int skip = 0,
@@ -192,12 +192,12 @@ namespace BTCPayServer.Controllers.Greenfield
CancellationToken cancellationToken = default
)
{
if (IsInvalidWalletRequest(cryptoCode, out var network,
if (IsInvalidWalletRequest(paymentMethodId, out var network,
out var derivationScheme, out var actionResult))
return actionResult;
var wallet = _btcPayWalletProvider.GetWallet(network);
var walletId = new WalletId(storeId, cryptoCode);
var walletId = new WalletId(storeId, network.CryptoCode);
var walletTransactionsInfoAsync = await _walletRepository.GetWalletTransactionsInfo(walletId, (string[]?)null);
var preFiltering = true;
@@ -238,11 +238,11 @@ namespace BTCPayServer.Controllers.Greenfield
}
[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/transactions/{transactionId}")]
public async Task<IActionResult> GetOnChainWalletTransaction(string storeId, string cryptoCode,
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet/transactions/{transactionId}")]
public async Task<IActionResult> GetOnChainWalletTransaction(string storeId, string paymentMethodId,
string transactionId)
{
if (IsInvalidWalletRequest(cryptoCode, out var network,
if (IsInvalidWalletRequest(paymentMethodId, out var network,
out var derivationScheme, out var actionResult))
return actionResult;
@@ -253,7 +253,7 @@ namespace BTCPayServer.Controllers.Greenfield
return this.CreateAPIError(404, "transaction-not-found", "The transaction was not found.");
}
var walletId = new WalletId(storeId, cryptoCode);
var walletId = new WalletId(storeId, network.CryptoCode);
var walletTransactionsInfoAsync =
(await _walletRepository.GetWalletTransactionsInfo(walletId, new[] { transactionId })).Values
.FirstOrDefault();
@@ -263,16 +263,16 @@ namespace BTCPayServer.Controllers.Greenfield
[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
[HttpPatch(
"~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/transactions/{transactionId}")]
"~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet/transactions/{transactionId}")]
public async Task<IActionResult> PatchOnChainWalletTransaction(
string storeId,
string cryptoCode,
string paymentMethodId,
string transactionId,
[FromBody] PatchOnChainTransactionRequest request,
bool force = false
)
{
if (IsInvalidWalletRequest(cryptoCode, out var network,
if (IsInvalidWalletRequest(paymentMethodId, out var network,
out var derivationScheme, out var actionResult))
return actionResult;
@@ -283,7 +283,7 @@ namespace BTCPayServer.Controllers.Greenfield
return this.CreateAPIError(404, "transaction-not-found", "The transaction was not found.");
}
var walletId = new WalletId(storeId, cryptoCode);
var walletId = new WalletId(storeId, network.CryptoCode);
var txObjectId = new WalletObjectId(walletId, WalletObjectData.Types.Tx, transactionId);
if (request.Comment != null)
@@ -305,20 +305,20 @@ namespace BTCPayServer.Controllers.Greenfield
}
[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/utxos")]
public async Task<IActionResult> GetOnChainWalletUTXOs(string storeId, string cryptoCode)
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet/utxos")]
public async Task<IActionResult> GetOnChainWalletUTXOs(string storeId, string paymentMethodId)
{
if (IsInvalidWalletRequest(cryptoCode, out var network,
if (IsInvalidWalletRequest(paymentMethodId, out var network,
out var derivationScheme, out var actionResult))
return actionResult;
var wallet = _btcPayWalletProvider.GetWallet(network);
var walletId = new WalletId(storeId, cryptoCode);
var walletId = new WalletId(storeId, network.CryptoCode);
var utxos = await wallet.GetUnspentCoins(derivationScheme.AccountDerivation);
var walletTransactionsInfoAsync = await _walletRepository.GetWalletTransactionsInfo(walletId,
utxos.SelectMany(GetWalletObjectsQuery.Get).Distinct().ToArray());
var pmi = PaymentTypes.CHAIN.GetPaymentMethodId(cryptoCode);
var pmi = PaymentMethodId.Parse(paymentMethodId);
return Ok(utxos.Select(coin =>
{
walletTransactionsInfoAsync.TryGetValue(coin.OutPoint.Hash.ToString(), out var info1);
@@ -347,17 +347,17 @@ namespace BTCPayServer.Controllers.Greenfield
}
[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
[HttpPost("~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/transactions")]
public async Task<IActionResult> CreateOnChainTransaction(string storeId, string cryptoCode,
[HttpPost("~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet/transactions")]
public async Task<IActionResult> CreateOnChainTransaction(string storeId, string paymentMethodId,
[FromBody] CreateOnChainTransactionRequest request)
{
if (IsInvalidWalletRequest(cryptoCode, out var network,
if (IsInvalidWalletRequest(paymentMethodId, out var network,
out var derivationScheme, out var actionResult))
return actionResult;
if (network.ReadonlyWallet)
{
return this.CreateAPIError(503, "not-available",
$"{cryptoCode} sending services are not currently available");
$"{network.CryptoCode} sending services are not currently available");
}
//This API is only meant for hot wallet usage for now. We can expand later when we allow PSBT manipulation.
@@ -387,7 +387,7 @@ namespace BTCPayServer.Controllers.Greenfield
return this.CreateValidationError(ModelState);
}
var explorerClient = _explorerClientProvider.GetExplorerClient(cryptoCode);
var explorerClient = _explorerClientProvider.GetExplorerClient(network);
var wallet = _btcPayWalletProvider.GetWallet(network);
var utxos = await wallet.GetUnspentCoins(derivationScheme.AccountDerivation, request.ExcludeUnconfirmed);
@@ -552,7 +552,7 @@ namespace BTCPayServer.Controllers.Greenfield
if (!derivationScheme.IsHotWallet || signingKeyStr is null)
{
return this.CreateAPIError(503, "not-available",
$"{cryptoCode} sending services are not currently available");
$"{network.CryptoCode} sending services are not currently available");
}
var signingKey = ExtKey.Parse(signingKeyStr, network.NBitcoinNetwork);
@@ -599,12 +599,12 @@ namespace BTCPayServer.Controllers.Greenfield
payjoinPSBT.Finalize();
var payjoinTransaction = payjoinPSBT.ExtractTransaction();
var hash = payjoinTransaction.GetHash();
await this._walletRepository.AddWalletTransactionAttachment(new WalletId(Store.Id, cryptoCode),
await this._walletRepository.AddWalletTransactionAttachment(new WalletId(Store.Id, network.CryptoCode),
hash, Attachment.Payjoin());
broadcastResult = await explorerClient.BroadcastAsync(payjoinTransaction);
if (broadcastResult.Success)
{
return await GetOnChainWalletTransaction(storeId, cryptoCode, hash.ToString());
return await GetOnChainWalletTransaction(storeId, paymentMethodId, hash.ToString());
}
}
catch (PayjoinException)
@@ -621,7 +621,7 @@ namespace BTCPayServer.Controllers.Greenfield
broadcastResult = await explorerClient.BroadcastAsync(transaction);
if (broadcastResult.Success)
{
return await GetOnChainWalletTransaction(storeId, cryptoCode, transactionHash.ToString());
return await GetOnChainWalletTransaction(storeId, paymentMethodId, transactionHash.ToString());
}
else
{
@@ -629,9 +629,9 @@ namespace BTCPayServer.Controllers.Greenfield
}
}
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/objects")]
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet/objects")]
[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
public async Task<IActionResult> GetOnChainWalletObjects(string storeId, string cryptoCode, string? type = null, [FromQuery(Name = "ids")] string[]? ids = null, bool? includeNeighbourData = null)
public async Task<IActionResult> GetOnChainWalletObjects(string storeId, string paymentMethodId, string? type = null, [FromQuery(Name = "ids")] string[]? ids = null, bool? includeNeighbourData = null)
{
if (ids?.Length is 0 && !Request.Query.ContainsKey("ids"))
ids = null;
@@ -639,28 +639,34 @@ namespace BTCPayServer.Controllers.Greenfield
ModelState.AddModelError(nameof(ids), "If ids is specified, type should be specified");
if (!ModelState.IsValid)
return this.CreateValidationError(ModelState);
var walletId = new WalletId(storeId, cryptoCode);
if (IsInvalidWalletRequest(paymentMethodId, out var network, out var actionResult))
return actionResult;
var walletId = new WalletId(storeId, network.CryptoCode);
return Ok((await _walletRepository.GetWalletObjects(new(walletId, type, ids) { IncludeNeighbours = includeNeighbourData ?? true })).Select(kv => kv.Value).Select(ToModel).ToArray());
}
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/objects/{objectType}/{objectId}")]
[HttpGet("~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet/objects/{objectType}/{objectId}")]
[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
public async Task<IActionResult> GetOnChainWalletObject(string storeId, string cryptoCode,
public async Task<IActionResult> GetOnChainWalletObject(string storeId, string paymentMethodId,
string objectType, string objectId,
bool? includeNeighbourData = null)
{
var walletId = new WalletId(storeId, cryptoCode);
if (IsInvalidWalletRequest(paymentMethodId, out var network, out var actionResult))
return actionResult;
var walletId = new WalletId(storeId, network.CryptoCode);
var wo = await _walletRepository.GetWalletObject(new(walletId, objectType, objectId), includeNeighbourData ?? true);
if (wo is null)
return WalletObjectNotFound();
return Ok(ToModel(wo));
}
[HttpDelete("~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/objects/{objectType}/{objectId}")]
[HttpDelete("~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet/objects/{objectType}/{objectId}")]
[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
public async Task<IActionResult> RemoveOnChainWalletObject(string storeId, string cryptoCode,
public async Task<IActionResult> RemoveOnChainWalletObject(string storeId, string paymentMethodId,
string objectType, string objectId)
{
var walletId = new WalletId(storeId, cryptoCode);
if (IsInvalidWalletRequest(paymentMethodId, out var network, out var actionResult))
return actionResult;
var walletId = new WalletId(storeId, network.CryptoCode);
if (await _walletRepository.RemoveWalletObjects(new WalletObjectId(walletId, objectType, objectId)))
return Ok();
else
@@ -672,11 +678,14 @@ namespace BTCPayServer.Controllers.Greenfield
return this.CreateAPIError(404, "wallet-object-not-found", "This wallet object's can't be found");
}
[HttpPost("~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/objects")]
[HttpPost("~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet/objects")]
[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
public async Task<IActionResult> AddOrUpdateOnChainWalletObject(string storeId, string cryptoCode,
public async Task<IActionResult> AddOrUpdateOnChainWalletObject(string storeId,
string paymentMethodId,
[FromBody] AddOnChainWalletObjectRequest request)
{
if (IsInvalidWalletRequest(paymentMethodId, out var network, out var actionResult))
return actionResult;
if (request?.Type is null)
ModelState.AddModelError(nameof(request.Type), "Type is required");
if (request?.Id is null)
@@ -684,13 +693,13 @@ namespace BTCPayServer.Controllers.Greenfield
if (!ModelState.IsValid)
return this.CreateValidationError(ModelState);
var walletId = new WalletId(storeId, cryptoCode);
var walletId = new WalletId(storeId, network.CryptoCode);
try
{
await _walletRepository.SetWalletObject(
new WalletObjectId(walletId, request!.Type, request.Id), request.Data);
return await GetOnChainWalletObject(storeId, cryptoCode, request!.Type, request.Id);
return await GetOnChainWalletObject(storeId, network.CryptoCode, request!.Type, request.Id);
}
catch (DbUpdateException)
{
@@ -698,12 +707,14 @@ namespace BTCPayServer.Controllers.Greenfield
}
}
[HttpPost("~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/objects/{objectType}/{objectId}/links")]
[HttpPost("~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet/objects/{objectType}/{objectId}/links")]
[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
public async Task<IActionResult> AddOrUpdateOnChainWalletLinks(string storeId, string cryptoCode,
public async Task<IActionResult> AddOrUpdateOnChainWalletLinks(string storeId, string paymentMethodId,
string objectType, string objectId,
[FromBody] AddOnChainWalletObjectLinkRequest request)
{
if (IsInvalidWalletRequest(paymentMethodId, out var network, out var actionResult))
return actionResult;
if (request?.Type is null)
ModelState.AddModelError(nameof(request.Type), "Type is required");
if (request?.Id is null)
@@ -711,7 +722,7 @@ namespace BTCPayServer.Controllers.Greenfield
if (!ModelState.IsValid)
return this.CreateValidationError(ModelState);
var walletId = new WalletId(storeId, cryptoCode);
var walletId = new WalletId(storeId, network.CryptoCode);
try
{
await _walletRepository.SetWalletObjectLink(
@@ -726,13 +737,15 @@ namespace BTCPayServer.Controllers.Greenfield
}
}
[HttpDelete("~/api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/objects/{objectType}/{objectId}/links/{linkType}/{linkId}")]
[HttpDelete("~/api/v1/stores/{storeId}/payment-methods/{paymentMethodId}/wallet/objects/{objectType}/{objectId}/links/{linkType}/{linkId}")]
[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Greenfield)]
public async Task<IActionResult> RemoveOnChainWalletLink(string storeId, string cryptoCode,
public async Task<IActionResult> RemoveOnChainWalletLink(string storeId, string paymentMethodId,
string objectType, string objectId,
string linkType, string linkId)
{
var walletId = new WalletId(storeId, cryptoCode);
if (IsInvalidWalletRequest(paymentMethodId, out var network, out var actionResult))
return actionResult;
var walletId = new WalletId(storeId, network.CryptoCode);
if (await _walletRepository.RemoveWalletObjectLink(
new WalletObjectId(walletId, objectType, objectId),
new WalletObjectId(walletId, linkType, linkId)))
@@ -769,31 +782,19 @@ namespace BTCPayServer.Controllers.Greenfield
return await _authorizationService.CanUseHotWallet(PoliciesSettings, User);
}
private bool IsInvalidWalletRequest(string cryptoCode, [MaybeNullWhen(true)] out BTCPayNetwork network,
private bool IsInvalidWalletRequest(string paymentMethodId, [MaybeNullWhen(true)] out BTCPayNetwork network,
[MaybeNullWhen(true)] out DerivationSchemeSettings derivationScheme,
[MaybeNullWhen(false)] out IActionResult actionResult)
{
var pmi = PaymentTypes.CHAIN.GetPaymentMethodId(cryptoCode);
derivationScheme = null;
if (!_handlers.TryGetValue(pmi, out var handler))
{
throw new JsonHttpException(this.CreateAPIError(404, "unknown-cryptocode",
"This crypto code isn't set up in this BTCPay Server instance"));
}
network = ((IHasNetwork)handler).Network;
if (!network.WalletSupported || !_btcPayWalletProvider.IsAvailable(network))
{
actionResult = this.CreateAPIError(503, "not-available",
$"{cryptoCode} services are not currently available");
if (IsInvalidWalletRequest(paymentMethodId, out network, out actionResult))
return true;
}
derivationScheme = GetDerivationSchemeSettings(cryptoCode);
derivationScheme = GetDerivationSchemeSettings(network.CryptoCode);
if (derivationScheme?.AccountDerivation is null)
{
actionResult = this.CreateAPIError(503, "not-available",
$"{cryptoCode} doesn't have any derivation scheme set");
$"{network.CryptoCode} doesn't have any derivation scheme set");
return true;
}
@@ -801,6 +802,28 @@ namespace BTCPayServer.Controllers.Greenfield
return false;
}
private bool IsInvalidWalletRequest(string paymentMethodId, [MaybeNullWhen(true)] out BTCPayNetwork network,
[MaybeNullWhen(false)] out IActionResult actionResult)
{
if (!PaymentMethodId.TryParse(paymentMethodId, out var pmi)
|| !_handlers.TryGetValue(pmi, out var handler)
|| handler is not IHasNetwork { Network: { WalletSupported: true } })
{
throw new JsonHttpException(this.CreateAPIError(404, "unknown-paymentMethodId",
"This payment method doesn't exists or doesn't offer wallet services"));
}
network = ((IHasNetwork)handler).Network;
if (!_btcPayWalletProvider.IsAvailable(network))
{
actionResult = this.CreateAPIError(503, "not-available",
$"{pmi} services are not currently available");
return true;
}
actionResult = null;
return false;
}
private DerivationSchemeSettings? GetDerivationSchemeSettings(string cryptoCode)
{
return Store.GetPaymentMethodConfig<DerivationSchemeSettings>(PaymentTypes.CHAIN.GetPaymentMethodId(cryptoCode), _handlers);