Add metadata for dequeued message in bindings.azure.storagequeues (#3028)

Signed-off-by: Yash Nisar <yashnisar@microsoft.com>

bindings/azure/storagequeues/storagequeues.go

@@ -38,6 +38,12 @@ const (
 	defaultTTL               = 10 * time.Minute
 	defaultVisibilityTimeout = 30 * time.Second
 	defaultPollingInterval   = 10 * time.Second
+	dequeueCount             = "dequeueCount"
+	insertionTime            = "insertionTime"
+	expirationTime           = "expirationTime"
+	nextVisibleTime          = "nextVisibleTime"
+	popReceipt               = "popReceipt"
+	messageID                = "messageID"
 )
 
 type consumer struct {
@@ -177,9 +183,30 @@ func (d *AzureQueueHelper) Read(ctx context.Context, consumer *consumer) error {
 		}
 	}
 
+	metadata := make(map[string]string, 6)
+
+	if res.Messages[0].MessageID != nil {
+		metadata[messageID] = *res.Messages[0].MessageID
+	}
+	if res.Messages[0].PopReceipt != nil {
+		metadata[popReceipt] = *res.Messages[0].PopReceipt
+	}
+	if res.Messages[0].InsertionTime != nil {
+		metadata[insertionTime] = res.Messages[0].InsertionTime.Format(time.RFC3339)
+	}
+	if res.Messages[0].ExpirationTime != nil {
+		metadata[expirationTime] = res.Messages[0].ExpirationTime.Format(time.RFC3339)
+	}
+	if res.Messages[0].TimeNextVisible != nil {
+		metadata[nextVisibleTime] = res.Messages[0].TimeNextVisible.Format(time.RFC3339)
+	}
+	if res.Messages[0].DequeueCount != nil {
+		metadata[dequeueCount] = strconv.FormatInt(*res.Messages[0].DequeueCount, 10)
+	}
+
 	_, err = consumer.callback(ctx, &bindings.ReadResponse{
 		Data:     data,
-		Metadata: map[string]string{},
+		Metadata: metadata,
 	})
 	if err != nil {
 		return err