Add label (#194)

* add label

* fix

src/ProjectOrigin.Stamp.Server/EventHandlers/MarkCertificateAsIssuedConsumer.cs

@@ -72,7 +72,7 @@ await _unitOfWork.OutboxMessageRepository.Create(new OutboxMessage
             JsonPayload = JsonSerializer.Serialize(payloadObj)
         });
         _unitOfWork.Commit();
-        _stampMetrics.IncrementIssuedCounter();
+        _stampMetrics.IncrementIssuedCounter(certificate.CertificateType);
 
         _logger.LogInformation("Certificate with registry {Registry} and certificateId {CertificateId} issued.", message.Registry, message.CertificateId);
     }

src/ProjectOrigin.Stamp.Server/Metrics/StampMetrics.cs

@@ -1,10 +1,12 @@
+using System.Collections.Generic;
 using System.Diagnostics.Metrics;
+using ProjectOrigin.Stamp.Server.Models;
 
 namespace ProjectOrigin.Stamp.Server.Metrics;
 
 public interface IStampMetrics
 {
-    void IncrementIssuedCounter();
+    void IncrementIssuedCounter(GranularCertificateType type);
     void IncrementIntentsCounter();
 }
 
@@ -22,6 +24,6 @@ public class StampMetrics(MeterBase meterBase) : IStampMetrics
             unit: "1",
             description: "The total number of certificate issuance intents received.");
 
-    public void IncrementIssuedCounter() => _issuanceIssuedCounter.Add(1);
+    public void IncrementIssuedCounter(GranularCertificateType type) => _issuanceIssuedCounter.Add(1, new KeyValuePair<string, object?>("CertificateType", type.ToString()));
     public void IncrementIntentsCounter() => _issuanceIntentsCounter.Add(1);
 }

src/ProjectOrigin.Stamp.Test/CertificateIssuingTests.cs

@@ -228,6 +228,7 @@ public async Task IssueSingleCertificate_IncrementsIssuedAndIntentsCountersByOne
         var issuedMeasurements = issuedCollector.GetMeasurementSnapshot();
         var intentsMeasurements = intentsCollector.GetMeasurementSnapshot();
 
+        issuedMeasurements[0].Tags["CertificateType"].Should().Be("Production");
         Assert.Equal(1, issuedMeasurements.EvaluateAsCounter());
         Assert.Equal(1, intentsMeasurements.EvaluateAsCounter());
     }