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https://github.com/aljazceru/BTCPayServerPlugins.git
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Kukks
222
Plugins/BTCPayServer.Plugins.AOPP/AOPPController.cs
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222
Plugins/BTCPayServer.Plugins.AOPP/AOPPController.cs
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using System;
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using System.IO;
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using System.Linq;
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using System.Net.Http;
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using System.Text;
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using System.Threading.Tasks;
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using System.Web;
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using BTCPayServer.Abstractions.Constants;
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using BTCPayServer.Abstractions.Contracts;
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using BTCPayServer.Client;
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using BTCPayServer.Client.Models;
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using BTCPayServer.Common;
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using Microsoft.AspNetCore.Authorization;
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using Microsoft.AspNetCore.Mvc;
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using NBitcoin;
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using NBitcoin.Crypto;
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using NBitcoin.Protocol;
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using NBXplorer;
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using Newtonsoft.Json;
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namespace BTCPayServer.Plugins.AOPP
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{
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[Authorize(AuthenticationSchemes = AuthenticationSchemes.Cookie)]
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[Authorize(Policy = Policies.CanModifyStoreSettings, AuthenticationSchemes = AuthenticationSchemes.Cookie)]
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[Route("plugins/{storeId}/AOPP")]
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public class AOPPController : Controller
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{
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private readonly BTCPayServerClient _btcPayServerClient;
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private readonly AOPPService _AOPPService;
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public AOPPController(BTCPayServerClient btcPayServerClient, AOPPService AOPPService)
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{
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_btcPayServerClient = btcPayServerClient;
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_AOPPService = AOPPService;
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}
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[HttpGet("")]
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public async Task<IActionResult> UpdateAOPPSettings(string storeId)
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{
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var store = await _btcPayServerClient.GetStore(storeId);
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UpdateAOPPSettingsViewModel vm = new UpdateAOPPSettingsViewModel();
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vm.StoreName = store.Name;
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AOPPSettings AOPP = null;
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try
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{
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AOPP = await _AOPPService.GetAOPPForStore(storeId);
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}
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catch (Exception)
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{
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// ignored
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}
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SetExistingValues(AOPP, vm);
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return View(vm);
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}
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private void SetExistingValues(AOPPSettings existing, UpdateAOPPSettingsViewModel vm)
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{
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if (existing == null)
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return;
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vm.Enabled = existing.Enabled;
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}
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[HttpPost("")]
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public async Task<IActionResult> UpdateAOPPSettings(string storeId, UpdateAOPPSettingsViewModel vm,
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string command)
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{
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if (vm.Enabled)
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{
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if (!ModelState.IsValid)
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{
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return View(vm);
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}
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}
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var AOPPSettings = new AOPPSettings()
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{
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Enabled = vm.Enabled,
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};
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switch (command)
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{
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case "save":
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await _AOPPService.SetAOPPForStore(storeId, AOPPSettings);
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TempData["SuccessMessage"] = "AOPP settings modified";
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return RedirectToAction(nameof(UpdateAOPPSettings), new {storeId});
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default:
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return View(vm);
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}
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}
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internal static String BITCOIN_SIGNED_MESSAGE_HEADER = "Bitcoin Signed Message:\n";
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internal static byte[] BITCOIN_SIGNED_MESSAGE_HEADER_BYTES = Encoding.UTF8.GetBytes(BITCOIN_SIGNED_MESSAGE_HEADER);
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//http://bitcoinj.googlecode.com/git-history/keychain/core/src/main/java/com/google/bitcoin/core/Utils.java
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private static byte[] FormatMessageForSigning(byte[] messageBytes)
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{
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MemoryStream ms = new MemoryStream();
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ms.WriteByte((byte)BITCOIN_SIGNED_MESSAGE_HEADER_BYTES.Length);
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ms.Write(BITCOIN_SIGNED_MESSAGE_HEADER_BYTES, 0, BITCOIN_SIGNED_MESSAGE_HEADER_BYTES.Length);
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VarInt size = new VarInt((ulong)messageBytes.Length);
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ms.Write(size.ToBytes(), 0, size.ToBytes().Length);
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ms.Write(messageBytes, 0, messageBytes.Length);
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return ms.ToArray();
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}
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public class AoppRequest
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{
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public Uri aopp { get; set; }
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}
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[HttpPost]
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[Route("{invoiceId}")]
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[AllowAnonymous]
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public async Task<IActionResult> AOPPExecute(string storeId, string invoiceId,
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[FromBody] AoppRequest request ,
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[FromServices] IHttpClientFactory httpClientFactory,
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[FromServices] BTCPayNetworkProvider btcPayNetworkProvider,
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[FromServices] IExplorerClientProvider explorerClientProvider,
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[FromServices] BTCPayServerClient btcPayServerClient,
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[FromServices] IBTCPayServerClientFactory btcPayServerClientFactory)
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{
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try
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{
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var client = await btcPayServerClientFactory.Create(null, new[] {storeId});
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var invoice = await client.GetInvoice(storeId, invoiceId);
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if (invoice.Status is not InvoiceStatus.New)
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{
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return NotFound();
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}
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var qs = HttpUtility.ParseQueryString(request.aopp.Query);
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var asset = qs.Get("asset");
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var network = btcPayNetworkProvider.GetNetwork<BTCPayNetwork>(asset);
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var invoicePaymentMethods = await client.GetInvoicePaymentMethods(storeId, invoiceId);
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var pm = invoicePaymentMethods.FirstOrDefault(model =>
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model.PaymentMethod.Equals(asset, StringComparison.InvariantCultureIgnoreCase));
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if (pm is null)
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{
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return NotFound();
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}
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var supported = (await client.GetStoreOnChainPaymentMethods(storeId))
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.FirstOrDefault(settings => settings.CryptoCode.Equals(asset, StringComparison.InvariantCultureIgnoreCase));
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;
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var msg = qs.Get("msg");
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var format = qs.Get("format");
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var callback = new Uri(qs.Get("callback")!, UriKind.Absolute);
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ScriptType? expectedType = null;
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switch (format)
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{
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case "p2pkh":
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expectedType = ScriptType.P2PKH;
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break;
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case "p2wpkh":
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expectedType = ScriptType.P2WPKH;
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break;
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case "p2sh":
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expectedType = ScriptType.P2SH;
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break;
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case "p2tr":
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expectedType = ScriptType.Taproot;
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break;
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case "any":
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break;
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}
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var address = BitcoinAddress.Create(pm.Destination, network.NBitcoinNetwork);
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if (expectedType is not null && !address.ScriptPubKey
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.IsScriptType(expectedType.Value))
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{
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return BadRequest();
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}
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var derivatonScheme =
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network.NBXplorerNetwork.DerivationStrategyFactory.Parse(supported.DerivationScheme);
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var explorerClient = explorerClientProvider.GetExplorerClient(network);
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var extKeyStr = await explorerClient.GetMetadataAsync<string>(
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derivatonScheme,
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WellknownMetadataKeys.AccountHDKey);
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if (extKeyStr == null)
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{
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return BadRequest();
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}
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var accountKey = ExtKey.Parse(extKeyStr, network.NBitcoinNetwork);
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var keyInfo = await explorerClient.GetKeyInformationAsync(derivatonScheme, address.ScriptPubKey);
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var privateKey = accountKey.Derive(keyInfo.KeyPath).PrivateKey;
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var messageBytes = Encoding.UTF8.GetBytes(msg);
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byte[] data = FormatMessageForSigning(messageBytes);
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var hash = Hashes.DoubleSHA256(data);
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var sig = Convert.ToBase64String(privateKey.SignCompact(hash, true).Signature);
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var response = new
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{
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version = 0,
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address = pm.Destination,
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signature = sig
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};
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using var httpClient = httpClientFactory.CreateClient();
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await httpClient.PostAsync(callback,
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new StringContent(JsonConvert.SerializeObject(response), Encoding.UTF8, "application/json"));
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return Ok();
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}
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catch (Exception e)
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{
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return BadRequest(new {ErrorMessage = e.Message});
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}
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}
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}
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}
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