弃用 OpenTelemetry，并建立日志驱动的真实慢接口基线

2026-08-11 11:32:50 +08:00
parent 9708f81764
commit 292d029459
9 changed files with 87 additions and 157 deletions
@@ -0,0 +1,49 @@
+using System.Diagnostics;
+using Jiaowu.Api.Infrastructure.Observability;
+
+namespace Jiaowu.Api.Infrastructure.Middleware;
+
+public sealed class SlowRequestLoggingMiddleware(
+    RequestDelegate next,
+    ObservabilityOptions options,
+    ILogger<SlowRequestLoggingMiddleware> logger)
+{
+    public async Task InvokeAsync(HttpContext context)
+    {
+        if (!options.Enabled ||
+            !context.Request.Path.StartsWithSegments("/api"))
+        {
+            await next(context);
+            return;
+        }
+
+        var startedAt = Stopwatch.GetTimestamp();
+        await next(context);
+
+        var durationMilliseconds = Stopwatch.GetElapsedTime(startedAt).TotalMilliseconds;
+        var endpoint = context.GetEndpoint()?.DisplayName ?? context.Request.Path.Value ?? "/api";
+        if (durationMilliseconds >= options.SlowRequestThresholdMilliseconds ||
+            context.Response.StatusCode >= StatusCodes.Status500InternalServerError)
+        {
+            logger.LogWarning(
+                "Slow API request completed: {Method} {Path} ({Endpoint}) returned {StatusCode} in {DurationMs:F1} ms, request {RequestId}.",
+                context.Request.Method,
+                context.Request.Path.Value,
+                endpoint,
+                context.Response.StatusCode,
+                durationMilliseconds,
+                context.TraceIdentifier);
+        }
+        else if (options.LogAllApiRequests)
+        {
+            logger.LogInformation(
+                "API request completed: {Method} {Path} ({Endpoint}) returned {StatusCode} in {DurationMs:F1} ms, request {RequestId}.",
+                context.Request.Method,
+                context.Request.Path.Value,
+                endpoint,
+                context.Response.StatusCode,
+                durationMilliseconds,
+                context.TraceIdentifier);
+        }
+    }
+}