fix: include metadata in dimensions

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/kelseyhightower/envconfig v1.4.0
 	github.com/sirupsen/logrus v1.9.0
 	github.com/stretchr/testify v1.8.1
-	go.k6.io/k6 v0.40.0
+	go.k6.io/k6 v0.42.0
 )
 
 require (

output.go

@@ -152,6 +152,17 @@ func (o *Output) createRecords(samples []metrics.Sample) []types.Record {
 			})
 		}
 
+		for tagKey, tagValue := range sample.Metadata {
+			if len(strings.TrimSpace(tagValue)) == 0 {
+				continue
+			}
+
+			dimensions = append(dimensions, types.Dimension{
+				Name:  aws.String(tagKey),
+				Value: aws.String(tagValue),
+			})
+		}
+
 		records = append(records, types.Record{
 			Dimensions:       dimensions,
 			MeasureName:      aws.String(sample.Metric.Name),

output_test.go

@@ -235,6 +235,10 @@ func TestCreateRecords(t *testing.T) {
 			},
 			Time:  time.UnixMicro(int64(0)),
 			Value: float64(1),
+			Metadata: map[string]string{
+				"md1.1": "mdval1.1",
+				"md2.1": "mdval2.1",
+			},
 		},
 		{
 			TimeSeries: metrics.TimeSeries{
@@ -245,6 +249,10 @@ func TestCreateRecords(t *testing.T) {
 			},
 			Time:  time.UnixMicro(int64(1)),
 			Value: float64(2.2),
+			Metadata: map[string]string{
+				"empty": "",
+				"md2.2": "mdval2.2",
+			},
 		},
 	}
 
@@ -259,6 +267,14 @@ func TestCreateRecords(t *testing.T) {
 					Name:  aws.String("key2.1"),
 					Value: aws.String("val2.1"),
 				},
+				{
+					Name:  aws.String("md1.1"),
+					Value: aws.String("mdval1.1"),
+				},
+				{
+					Name:  aws.String("md2.1"),
+					Value: aws.String("mdval2.1"),
+				},
 			},
 			MeasureName:      aws.String("test_metric1"),
 			MeasureValue:     aws.String("1.000000"),
@@ -272,6 +288,10 @@ func TestCreateRecords(t *testing.T) {
 					Name:  aws.String("key2.2"),
 					Value: aws.String("val2.2"),
 				},
+				{
+					Name:  aws.String("md2.2"),
+					Value: aws.String("mdval2.2"),
+				},
 			},
 			MeasureName:      aws.String("test_metric2"),
 			MeasureValue:     aws.String("2.200000"),