Fix spelling typo

internal/cli/metrics_root.go

@@ -129,11 +129,17 @@ func getExporterOptions(c *cli.Context, mc *metrics.Config) ([]otlpmetricgrpc.Op
 	}
 
 	if c.String("temporality") == "delta" {
+		logger.Info("using", zap.String("temporarility", c.String("temporality")))
 		grpcExpOpt = append(grpcExpOpt, otlpmetricgrpc.WithTemporalitySelector(preferDeltaTemporalitySelector))
 		httpExpOpt = append(httpExpOpt, otlpmetrichttp.WithTemporalitySelector(preferDeltaTemporalitySelector))
-	} else {
+	} else if c.String("temporality") == "cumulative" {
+		logger.Info("using", zap.String("temporarility", c.String("temporality")))
 		grpcExpOpt = append(grpcExpOpt, otlpmetricgrpc.WithTemporalitySelector(preferCumulativeTemporalitySelector))
 		httpExpOpt = append(httpExpOpt, otlpmetrichttp.WithTemporalitySelector(preferCumulativeTemporalitySelector))
+	} else {
+		logger.Error("falliing back to delta temporality", zap.String("use one of", "delta, cumulative"))
+		grpcExpOpt = append(grpcExpOpt, otlpmetricgrpc.WithTemporalitySelector(preferDeltaTemporalitySelector))
+		httpExpOpt = append(httpExpOpt, otlpmetrichttp.WithTemporalitySelector(preferDeltaTemporalitySelector))
 	}
 
 	return grpcExpOpt, httpExpOpt

internal/metrics/worker.go

@@ -32,6 +32,15 @@ func NewWorker(c *Config, logger *zap.Logger) *Worker {
 	}
 }
 
+// run is a function that runs a worker
+func run(c *Config, logger *zap.Logger, workerFunc WorkerFunc) error {
+	w := NewWorker(c, logger)
+	if err := w.Run(context.Background(), workerFunc); err != nil {
+		return fmt.Errorf("failed to run worker: %w", err)
+	}
+	return nil
+}
+
 // Run runs the worker
 func (w *Worker) Run(ctx context.Context, workerFunc WorkerFunc) error {
 	if w.totalDuration == 0 {