fix(lib): correctly handle parse empty query results

Author: danji90

lib/src/utils/parseQueryResult.ts

@@ -3,19 +3,26 @@ import { QueryExecResult } from "sql.js";
 import safeJsonParse from "./safeJsonParse";
 
 function parseQueryResult<T>(queryResponse: QueryExecResult[]): T[] {
-  const [{ columns, values }] = queryResponse;
-  if (!values) {
-    throw new Error("No data found");
+  const result = queryResponse?.[0];
+
+  if (!result || !result.columns || !result.values) {
+    return [];
   }
 
-  return values.map((entry) => {
-    return columns.reduce((acc, column, idx) => {
-      const value = safeJsonParse(entry[idx]);
+  const { columns, values } = result;
+
+  return values.map((entry) =>
+    columns.reduce((acc, column, idx) => {
+      const raw = entry[idx];
+      const value = safeJsonParse(raw);
+
       const isStringToNumber =
-        typeof entry[idx] === "string" && typeof value === "number"; // JSON.parse converts strings to numbers
-      return { ...acc, [column]: isStringToNumber ? `${value}` : value };
-    }, {} as T);
-  }, []);
+        typeof raw === "string" && typeof value === "number";
+
+      acc[column as keyof T] = (isStringToNumber ? `${value}` : value) as T[keyof T];
+      return acc;
+    }, {} as T)
+  );
 }
 
 export default parseQueryResult;