Looped sync works, but is slow. No retry or resiliency built in.

frontend/src/captureuserupdate.js

@@ -0,0 +1,70 @@
+import fs from "fs";
+import path from "path";
+import axios from "axios";
+import qs from "qs";
+import dotenv from "dotenv";
+import PocketBase from "pocketbase";
+import XLSX from "xlsx";
+
+dotenv.config();
+
+// -----------------------------
+// CONFIG
+// -----------------------------
+const CONFIG = JSON.parse(fs.readFileSync("config.json", "utf8"));
+const tenantId = CONFIG.tenantId;
+const clientId = CONFIG.clientId;
+const clientSecret = process.env.CLIENT_SECRET;
+
+
+// -----------------------------
+// EXCEL HEADER AND DATA ROW PARAMETERS
+// -----------------------------
+const HEADER_ROW_INDEX = 1; // headers on row 2 (index 1)
+const DATA_START_ROW_INDEX = 2; // data starts on row 3 (index 2)
+
+
+// -----------------------------
+// GRAPH TOKEN ACQUISITION
+// -----------------------------
+async function getGraphToken() {
+  const tokenUrl = `https://login.microsoftonline.com/${tenantId}/oauth2/v2.0/token`;
+  const body = qs.stringify({
+    client_id: clientId,
+    client_secret: clientSecret,
+    scope: "https://graph.microsoft.com/.default",
+    grant_type: "client_credentials",
+  });
+  const res = await axios.post(tokenUrl, body, {
+    headers: { "Content-Type": "application/x-www-form-urlencoded" },
+  });
+  log("✅ Graph token acquired");
+  return res.data.access_token;
+}
+
+// -----------------------------
+// GRAPH EXCEL DOWNLOAD HELPER
+// -----------------------------
+async function downloadExcelFromGraph(graphToken, driveId, itemId) {
+  const url = `https://graph.microsoft.com/v1.0/drives/${driveId}/items/${itemId}/content`;
+  const res = await axios.get(url, {
+    headers: { Authorization: `Bearer ${graphToken}` },
+    responseType: "arraybuffer",
+  });
+  return Buffer.from(res.data);
+}
+
+// -----------------------------
+// MAIN SYNC LOGIC
+// -----------------------------
+async function runSync() {
+  try {
+    const graphToken = await getGraphToken();
+
+    const driveId = "b!9YOqqr2xM0G2DFBwMEJYY4UzQgocFddEtpLYWuS9_AtkCKl2q8yjQJteQ7Ti4QSx";
+    const itemId = "01SPNXLDSQTMG4F6BDANCLJU2FZKEDQLVU";
+
+    const excelBuffer = await downloadExcelFromGraph(graphToken, driveId, itemId);
+  } catch (error) {
+    console.error("❌ Error during sync:", error);
+  }}