From 72d08e98e1ceff709d248a92232436ab0aa990f2 Mon Sep 17 00:00:00 2001
From: Ludo <Ludovit.Velas@ekonom.at>
Date: Sun, 6 Jul 2025 23:08:25 +0000
Subject: [PATCH] =?UTF-8?q?Nahr=C3=A1t=20soubory=20do=20=E2=80=9E/?=
 =?UTF-8?q?=E2=80=9C?=
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---
 server.js | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 server.js

diff --git a/server.js b/server.js
new file mode 100644
index 0000000..a5cef6c
--- /dev/null
+++ b/server.js
@@ -0,0 +1,70 @@
+// Node.js API server to fetch and merge Slovak company data by IČO
+// from two Finančná správa SR API endpoints with 404-safe handling
+
+const express = require("express");
+const axios = require("axios");
+
+const app = express();
+const PORT = 3000;
+
+// Insert your API key below
+const API_KEY = "2t5lK487ces7Rc4oEHrIwCjB5DpoZUBChQxCLBiSrwGNdEubKpraAtQLEiJmPXkdjNw5FssYpuO0LXSZpk3U6oqePyFaIGHokg4WNPEM0302X2BK4iXpkFv9Qg7jyeUXh50bWVExVrVSBuOnOQpBzzdJ1k1D54b115MD3y5ticWxvGDLUaqLQgA6nzFgbYOx6dR0ToJUxU714TetLBZCBy0xKSnBaOrxYv10I1gZ1q4rQx4Q8k7BTR6MaP";
+
+// Safe fetch wrapper to handle 404 as empty result
+async function fetchSafe(url) {
+  try {
+    const res = await axios.get(url, {
+      headers: {
+        accept: "application/json",
+        key: API_KEY
+      }
+    });
+    return res.data?.data || [];
+  } catch (err) {
+    if (err.response?.status === 404) {
+      return []; // return empty list if not found
+    }
+    throw err;
+  }
+}
+
+// API endpoint: /api/lookup?ico=XXXXXXXX
+app.get("/api/lookup", async (req, res) => {
+  const ico = req.query.ico;
+
+  if (!ico) {
+    return res.status(400).json({ error: "Missing ICO parameter" });
+  }
+
+  const endpoints = [
+    `https://iz.opendata.financnasprava.sk/api/data/ds_dsrdp/search?page=1&column=ico&search=${ico}`,
+    `https://iz.opendata.financnasprava.sk/api/data/ds_dphs/search?page=1&column=ico&search=${ico}`
+  ];
+
+  try {
+    const [data1, data2] = await Promise.all([
+      fetchSafe(endpoints[0]),
+      fetchSafe(endpoints[1])
+    ]);
+
+    const merged = [...data1, ...data2].filter(
+      (item, index, self) =>
+        index === self.findIndex((t) =>
+          JSON.stringify(t) === JSON.stringify(item)
+        )
+    );
+
+    res.json({
+      source1_count: data1.length,
+      source2_count: data2.length,
+      merged_count: merged.length,
+      data: merged
+    });
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+app.listen(PORT, () => {
+  console.log(`API server running at http://localhost:${PORT}`);
+});
\ No newline at end of file