align naming of request duration metric to conventions

Author: KodrAus

src/Roastery/Metrics/RoasteryMetrics.cs

@@ -24,8 +24,8 @@ public class Sample
         */
 
         // `http.request.duration`: histogram
-        public record struct RequestDurationKey(string Path, int StatusCode);
-        public readonly Dictionary<RequestDurationKey, ExponentialHistogram> RequestDuration = new();
+        public record struct HttpRequestDurationKey(string Path, int StatusCode);
+        public readonly Dictionary<HttpRequestDurationKey, ExponentialHistogram> HttpRequestDuration = new();
 
         // `orders.created`: counter
         public ulong OrdersCreated;
@@ -37,7 +37,7 @@ public record struct RequestDurationKey(string Path, int StatusCode);
 
         public IEnumerable<LogEvent> ToLogEvents(ILogger logger, PropertyNameMapping propertyNameMapping, DateTimeOffset timestamp)
         {
-            foreach (var (key, metric) in RequestDuration)
+            foreach (var (key, metric) in HttpRequestDuration)
             {
                 yield return ToLogEvent(
                     logger,
@@ -105,14 +105,14 @@ static LogEvent ToLogEvent(ILogger logger, PropertyNameMapping propertyNameMappi
     readonly Lock _lock = new();
     Sample _current = new();
 
-    public void RecordRequestDuration(Sample.RequestDurationKey key, double rawValue)
+    public void RecordHttpRequestDuration(Sample.HttpRequestDurationKey key, double rawValue)
     {
         lock (_lock)
         {
-            if (!_current.RequestDuration.TryGetValue(key, out var metric))
+            if (!_current.HttpRequestDuration.TryGetValue(key, out var metric))
             {
                 metric = new ExponentialHistogram();
-                _current.RequestDuration.Add(key, metric);
+                _current.HttpRequestDuration.Add(key, metric);
             }
 
             metric.Record(rawValue);

src/Roastery/Web/RequestLoggingMiddleware.cs

@@ -36,7 +36,7 @@ public override async Task<HttpResponse> InvokeAsync(HttpRequest request)
             var response = await _next.InvokeAsync(request);
 
             LogCompletion(activity, null, response.StatusCode);
-            _metrics.RecordRequestDuration(new RoasteryMetrics.Sample.RequestDurationKey(request.Path, (int)response.StatusCode), requestTiming.ElapsedMilliseconds);
+            _metrics.RecordHttpRequestDuration(new RoasteryMetrics.Sample.HttpRequestDurationKey(request.Path, (int)response.StatusCode), requestTiming.ElapsedMilliseconds);
 
             return response;
         }
@@ -49,7 +49,7 @@ public override async Task<HttpResponse> InvokeAsync(HttpRequest request)
         {
             var statusCode = HttpStatusCode.InternalServerError;
 
-            _metrics.RecordRequestDuration(new RoasteryMetrics.Sample.RequestDurationKey(request.Path, (int)statusCode), requestTiming.ElapsedMilliseconds);
+            _metrics.RecordHttpRequestDuration(new RoasteryMetrics.Sample.HttpRequestDurationKey(request.Path, (int)statusCode), requestTiming.ElapsedMilliseconds);
             return new HttpResponse(statusCode, "An error occurred.");
         }
     }