improv(metrics): logMetricsAfterOrError middleware, examples update

Author: saragerion

packages/metrics/examples/decorator/single-metric.ts

@@ -3,7 +3,7 @@ import * as dummyEvent from '../../../tests/resources/events/custom/hello-world.
 import { context as dummyContext } from '../../../tests/resources/contexts/hello-world';
 import { LambdaInterface } from './utils/lambda/LambdaInterface';
 import { Callback, Context } from 'aws-lambda/handler';
-import { Metrics, MetricUnits } from '../src';
+import { Metrics, MetricUnits } from '../../src';
 
 // Populate runtime
 populateEnvironmentVariables();
@@ -16,11 +16,14 @@ class Lambda implements LambdaInterface {
 
   @metrics.logMetrics()
   public handler<TEvent, TResult>(_event: TEvent, _context: Context, _callback: Callback<TResult>): void | Promise<TResult> {
+    metrics.addDimension('metricUnit', 'milliseconds');
+    // This metric will have the "metricUnit" dimension, and no "metricType" dimension:
+    metrics.addMetric('latency', MetricUnits.Milliseconds, 56);
+
     const singleMetric = metrics.singleMetric();
-    metrics.addDimension('OuterDimension', 'true');
-    singleMetric.addDimension('InnerDimension', 'true');
-    metrics.addMetric('test-metric', MetricUnits.Count, 10);
-    singleMetric.addMetric('single-metric', MetricUnits.Percent, 50);
+    // This metric will have the "metricType" dimension, and no "metricUnit" dimension:
+    singleMetric.addDimension('metricType', 'business');
+    singleMetric.addMetric('videoClicked', MetricUnits.Count, 1);
   }
 
 }

packages/metrics/examples/single-metric.ts

@@ -13,11 +13,14 @@ process.env.POWERTOOLS_METRICS_NAMESPACE = 'hello-world';
 const metrics = new Metrics();
 
 const lambdaHandler = async (): Promise<void> => {
+  metrics.addDimension('metricUnit', 'milliseconds');
+  // This metric will have the "metricUnit" dimension, and no "metricType" dimension:
+  metrics.addMetric('latency', MetricUnits.Milliseconds, 56);
+
   const singleMetric = metrics.singleMetric();
-  metrics.addDimension('OuterDimension', 'true');
-  singleMetric.addDimension('InnerDimension', 'true');
-  metrics.addMetric('test-metric', MetricUnits.Count, 10);
-  singleMetric.addMetric('single-metric', MetricUnits.Percent, 50);
+  // This metric will have the "metricType" dimension, and no "metricUnit" dimension:
+  singleMetric.addDimension('metricType', 'business');
+  singleMetric.addMetric('videoClicked', MetricUnits.Count, 1);
 };
 
 const handlerWithMiddleware = middy(lambdaHandler)