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Refactor the RateProvider

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This commit is contained in:
nicolas.dorier
2018-05-03 03:32:42 +09:00
parent 43be1e191f
commit e57a488371
34 changed files with 583 additions and 616 deletions
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101
BTCPayServer/Controllers/RateController.cs
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@@ -8,17 +8,19 @@ using System.Threading.Tasks;
using BTCPayServer.Filters;
using BTCPayServer.Services.Rates;
using BTCPayServer.Services.Stores;
using BTCPayServer.Rating;
using Newtonsoft.Json;
namespace BTCPayServer.Controllers
{
public class RateController : Controller
{
IRateProviderFactory _RateProviderFactory;
BTCPayRateProviderFactory _RateProviderFactory;
BTCPayNetworkProvider _NetworkProvider;
CurrencyNameTable _CurrencyNameTable;
StoreRepository _StoreRepo;
public RateController(
IRateProviderFactory rateProviderFactory,
BTCPayRateProviderFactory rateProviderFactory,
BTCPayNetworkProvider networkProvider,
StoreRepository storeRepo,
CurrencyNameTable currencyNameTable)
@@ -32,45 +34,90 @@ namespace BTCPayServer.Controllers
[Route("rates")]
[HttpGet]
[BitpayAPIConstraint]
public async Task<IActionResult> GetRates(string cryptoCode = null, string storeId = null)
public async Task<IActionResult> GetRates(string currencyPairs, string storeId)
{
var result = await GetRates2(cryptoCode, storeId);
var result = await GetRates2(currencyPairs, storeId);
var rates = (result as JsonResult)?.Value as NBitpayClient.Rate[];
if(rates == null)
if (rates == null)
return result;
return Json(new DataWrapper<NBitpayClient.Rate[]>(rates));
return Json(new DataWrapper<NBitpayClient.Rate[]>(rates));
}
[Route("api/rates")]
[HttpGet]
public async Task<IActionResult> GetRates2(string cryptoCode = null, string storeId = null)
public async Task<IActionResult> GetRates2(string currencyPairs, string storeId)
{
cryptoCode = cryptoCode ?? "BTC";
var network = _NetworkProvider.GetNetwork(cryptoCode);
if (network == null)
return NotFound();
RateRules rules = null;
if (storeId != null)
if(storeId == null || currencyPairs == null)
{
var store = await _StoreRepo.FindStore(storeId);
if (store == null)
return NotFound();
rules = store.GetStoreBlob().GetRateRules();
var result = Json(new BitpayErrorsModel() { Error = "You need to specify storeId (in your store settings) and currencyPairs (eg. BTC_USD,LTC_CAD)" });
result.StatusCode = 400;
return result;
}
var rateProvider = _RateProviderFactory.GetRateProvider(network, rules);
if (rateProvider == null)
return NotFound();
var store = await _StoreRepo.FindStore(storeId);
if (store == null)
{
var result = Json(new BitpayErrorsModel() { Error = "Store not found" });
result.StatusCode = 404;
return result;
}
var rules = store.GetStoreBlob().GetRateRules(_NetworkProvider);
var allRates = (await rateProvider.GetRatesAsync());
return Json(allRates.Select(r =>
new NBitpayClient.Rate()
HashSet<CurrencyPair> pairs = new HashSet<CurrencyPair>();
foreach(var currency in currencyPairs.Split(','))
{
if(!CurrencyPair.TryParse(currency, out var pair))
{
var result = Json(new BitpayErrorsModel() { Error = $"Currency pair {currency} uncorrectly formatted" });
result.StatusCode = 400;
return result;
}
pairs.Add(pair);
}
var fetching = _RateProviderFactory.FetchRates(pairs, rules);
await Task.WhenAll(fetching.Select(f => f.Value).ToArray());
return Json(pairs
.Select(r => (Pair: r, Value: fetching[r].GetAwaiter().GetResult().Value))
.Where(r => r.Value.HasValue)
.Select(r =>
new Rate()
{
Code = r.Currency,
Name = _CurrencyNameTable.GetCurrencyData(r.Currency)?.Name,
Value = r.Value
CryptoCode = r.Pair.Left,
Code = r.Pair.Right,
Name = _CurrencyNameTable.GetCurrencyData(r.Pair.Right)?.Name,
Value = r.Value.Value
}).Where(n => n.Name != null).ToArray());
}
public class Rate
{
[JsonProperty(PropertyName = "name")]
public string Name
{
get;
set;
}
[JsonProperty(PropertyName = "cryptoCode")]
public string CryptoCode
{
get;
set;
}
[JsonProperty(PropertyName = "code")]
public string Code
{
get;
set;
}
[JsonProperty(PropertyName = "rate")]
public decimal Value
{
get;
set;
}
}
}
}