kjh2064
c41e5063b7
Removed entire kbx-foundation-v36 directory as it's been replaced by the new KBX Foundation v4 patterns implemented in this session: - Registry-driven screen definitions - Density-aware UI adapter components - Feature module templates (ShadowRun, Models) Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
40 lines
2.3 KiB
C#
40 lines
2.3 KiB
C#
using System.Text;
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using System.Text.Json;
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namespace Kbx.Shared.Providers;
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public interface IKisAccessTokenProvider { ValueTask<string> GetAsync(bool sandbox, CancellationToken cancellationToken); }
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public sealed class KisAccessTokenProvider(HttpClient http, IKbxProviderSecretStore secrets) : IKisAccessTokenProvider
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{
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private readonly SemaphoreSlim _gate = new(1,1);
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private string? _token;
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private DateTimeOffset _expiresAt;
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private bool _sandbox;
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public async ValueTask<string> GetAsync(bool sandbox, CancellationToken ct)
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{
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if (_token is not null && _sandbox == sandbox && DateTimeOffset.UtcNow < _expiresAt.AddMinutes(-5)) return _token;
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await _gate.WaitAsync(ct);
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try
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{
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if (_token is not null && _sandbox == sandbox && DateTimeOffset.UtcNow < _expiresAt.AddMinutes(-5)) return _token;
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var appKey = await secrets.GetRequiredAsync("ExternalProviders:Kis:AppKey", ct);
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var appSecret = await secrets.GetRequiredAsync("ExternalProviders:Kis:AppSecret", ct);
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var baseUri = sandbox ? "https://openapivts.koreainvestment.com:29443" : "https://openapi.koreainvestment.com:9443";
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var payload = JsonSerializer.Serialize(new { grant_type="client_credentials", appkey=appKey, appsecret=appSecret });
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using var req = new HttpRequestMessage(HttpMethod.Post, baseUri + "/oauth2/tokenP") { Content = new StringContent(payload, Encoding.UTF8, "application/json") };
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using var res = await http.SendAsync(req, ct);
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res.EnsureSuccessStatusCode();
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using var doc = JsonDocument.Parse(await res.Content.ReadAsStringAsync(ct));
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_token = doc.RootElement.GetProperty("access_token").GetString() ?? throw new InvalidOperationException("KIS access_token missing");
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_sandbox = sandbox;
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if (doc.RootElement.TryGetProperty("access_token_token_expired", out var exp) && DateTimeOffset.TryParse(exp.GetString(), out var parsed)) _expiresAt = parsed;
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else if (doc.RootElement.TryGetProperty("expires_in", out var sec) && sec.TryGetInt32(out var seconds)) _expiresAt = DateTimeOffset.UtcNow.AddSeconds(seconds);
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else _expiresAt = DateTimeOffset.UtcNow.AddHours(24);
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return _token;
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}
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finally { _gate.Release(); }
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}
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}
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