| | | 1 | | using System.Net; |
| | | 2 | | using Microsoft.Extensions.Logging; |
| | | 3 | | |
| | | 4 | | namespace Orchestrator.Infrastructure.Langfuse; |
| | | 5 | | |
| | | 6 | | internal sealed class LangfuseRetryLoggingHandler : DelegatingHandler |
| | | 7 | | { |
| | | 8 | | private readonly ILogger<LangfuseRetryLoggingHandler> _logger; |
| | | 9 | | |
| | 1 | 10 | | public LangfuseRetryLoggingHandler(ILogger<LangfuseRetryLoggingHandler> logger) |
| | | 11 | | { |
| | 1 | 12 | | _logger = logger; |
| | 1 | 13 | | } |
| | | 14 | | |
| | | 15 | | protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellat |
| | | 16 | | { |
| | 1 | 17 | | var response = await base.SendAsync(request, cancellationToken); |
| | | 18 | | |
| | 1 | 19 | | if (ShouldLogPotentialRetry(response.StatusCode)) |
| | | 20 | | { |
| | 1 | 21 | | var retryMetadata = LangfuseRetryAfterUtility.GetRetryAfterMetadata(response.Headers); |
| | 1 | 22 | | _logger.LogWarning( |
| | 1 | 23 | | "Langfuse request {Method} {Path} returned {StatusCode} ({ReasonPhrase}). Retry-After: {RetryAfterHeader |
| | 1 | 24 | | request.Method.Method, |
| | 1 | 25 | | request.RequestUri?.PathAndQuery ?? string.Empty, |
| | 1 | 26 | | (int)response.StatusCode, |
| | 1 | 27 | | response.ReasonPhrase, |
| | 1 | 28 | | retryMetadata.RetryAfterHeaderValue, |
| | 1 | 29 | | retryMetadata.RetryAfterDelay, |
| | 1 | 30 | | retryMetadata.RetryAfterAtUtc); |
| | | 31 | | } |
| | | 32 | | |
| | 1 | 33 | | return response; |
| | 1 | 34 | | } |
| | | 35 | | |
| | | 36 | | private static bool ShouldLogPotentialRetry(HttpStatusCode statusCode) |
| | | 37 | | { |
| | 1 | 38 | | return statusCode == HttpStatusCode.RequestTimeout |
| | 1 | 39 | | || statusCode == HttpStatusCode.TooManyRequests |
| | 1 | 40 | | || (int)statusCode >= 500; |
| | | 41 | | } |
| | | 42 | | } |