From 78e86140b42b540fc67a8e24ba1bb02f86a25e9a Mon Sep 17 00:00:00 2001
From: weibaohui <weibaohui@yeah.net>
Date: Wed, 21 Aug 2024 12:59:58 +0800
Subject: [PATCH] fix npe

---
 BlazorApp/Service/k8s/impl/KubeService.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/BlazorApp/Service/k8s/impl/KubeService.cs b/BlazorApp/Service/k8s/impl/KubeService.cs
index f3fc31ef..1e99e9df 100644
--- a/BlazorApp/Service/k8s/impl/KubeService.cs
+++ b/BlazorApp/Service/k8s/impl/KubeService.cs
@@ -167,6 +167,11 @@ public async Task<List<IMetric>> ConvertStringToMetrics(string metricString)
     public async Task<List<IMetric>> GetMetricsSlis()
     {
         var metricString = await GetStringAsync("/metrics/slis");
+        if (metricString.IsNullOrWhiteSpace())
+        {
+            return [];
+        }
+
         var byteArray = Encoding.UTF8.GetBytes(metricString);
         await using var ms = new MemoryStream(byteArray);
         var metric = await PrometheusMetricsParser.ParseAsync(ms);