From c1dbe94c645b5b19913e462bbc2d9232b31c3d4b Mon Sep 17 00:00:00 2001
From: Christian Georgi <christian.georgi@sap.com>
Date: Wed, 12 Mar 2025 10:23:46 +0100
Subject: [PATCH] Handle singleton results in data viewer

---
 data-viewer/srv/data-service.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/data-viewer/srv/data-service.js b/data-viewer/srv/data-service.js
index d92870cd..e0a5c776 100644
--- a/data-viewer/srv/data-service.js
+++ b/data-viewer/srv/data-service.js
@@ -34,7 +34,8 @@ class DataService extends cds.ApplicationService { init(){
     query.SELECT.limit = req.query.SELECT.limit  // forward $skip / $top
 
     const dataSource = findDataSource(dataSourceName, entityName)
-    const res = await dataSource.run(query)
+    let res = await dataSource.run(query)
+    if (!Array.isArray(res))  res = [res] // singleton result
     return res.map((line) => {
       const record = Object.entries(line).map(([column, data]) => ({ column, data }))
       return {