_, err := svc.PutMetricData(&cloudwatch.PutMetricDataInput{
    Namespace: aws.String("Site/Traffic"),
    MetricData: []*cloudwatch.MetricDatum{
        &cloudwatch.MetricDatum{
            MetricName: aws.String("UniqueVisitors"),
            Unit:       aws.String("Count"),
            Value:      aws.Float64(5885.0),
            Dimensions: []*cloudwatch.Dimension{
                &cloudwatch.Dimension{
                    Name:  aws.String("SiteName"),
                    Value: aws.String("example.com"),
                },
            },
        },
        &cloudwatch.MetricDatum{
            MetricName: aws.String("UniqueVisits"),
            Unit:       aws.String("Count"),
            Value:      aws.Float64(8628.0),
            Dimensions: []*cloudwatch.Dimension{
                &cloudwatch.Dimension{
                    Name:  aws.String("SiteName"),
                    Value: aws.String("example.com"),
                },
            },
        },
        &cloudwatch.MetricDatum{
            MetricName: aws.String("PageViews"),
            Unit:       aws.String("Count"),
            Value:      aws.Float64(18057.0),
            Dimensions: []*cloudwatch.Dimension{
                &cloudwatch.Dimension{
                    Name:  aws.String("PageURL"),
                    Value: aws.String("my-page.html"),
                },
            },
        },
    },
})