diff --git a/src/officesense_pi/src/api/mapper/mapper.controller.ts b/src/officesense_pi/src/api/mapper/mapper.controller.ts
new file mode 100644
index 0000000..f6e9c2c
--- /dev/null
+++ b/src/officesense_pi/src/api/mapper/mapper.controller.ts
@@ -0,0 +1,17 @@
+import type { NextFunction, Request, Response } from "express";
+import { generateMap } from "./mapper.repository.js";
+
+export function checkSession(req: Request, res: Response, next: NextFunction) {
+    if (!(req.session as any)?.adminUser) {
+        return res.status(401).json({ error: 'Unauthorized' })
+    }
+    next();
+}
+
+export async function getRedisMapping(req: Request, res: Response) {
+    try {
+        res.status(200).send(await generateMap());
+    } catch (err) {
+        res.status(500).json({ error: 'Failed to fetch sessions' })
+    }
+}
diff --git a/src/officesense_pi/src/api/mapper/mapper.repository.ts b/src/officesense_pi/src/api/mapper/mapper.repository.ts
new file mode 100644
index 0000000..3a03969
--- /dev/null
+++ b/src/officesense_pi/src/api/mapper/mapper.repository.ts
@@ -0,0 +1,29 @@
+import { getRedis } from "../../redis/redis.js";
+import { prisma } from "../../lib/prisma.js";
+
+export async function generateMap() {
+    const redis = getRedis();
+
+    const keys = await redis.keys('user:*')
+
+    const sessions = await Promise.all(keys.map(async (key) => {
+        const raw = await redis.get(key)
+        const session = JSON.parse(raw!)
+        const realUserId = key.replace('user:', '')
+
+        const user = await prisma.user.findUnique({
+            where: { id: realUserId },
+            select: { id: true, firstName: true, lastName: true }
+        })
+
+        return {
+            realUserId,
+            firstName: user?.firstName ?? 'Unknown',
+            lastName: user?.lastName ?? 'Unknown',
+            pseudoId: session.userID,
+            pseudoName: session.name
+        }
+    }))
+
+    return sessions;
+}
diff --git a/src/officesense_pi/src/api/mapper/mapper.routes.ts b/src/officesense_pi/src/api/mapper/mapper.routes.ts
new file mode 100644
index 0000000..1fa6965
--- /dev/null
+++ b/src/officesense_pi/src/api/mapper/mapper.routes.ts
@@ -0,0 +1,8 @@
+import express from "express";
+import { getRedisMapping, checkSession } from "./mapper.controller.js";
+
+const router = express.Router();
+
+router.get("/map", checkSession, getRedisMapping);
+
+export default router;