diff --git a/functions/src/index.ts b/functions/src/index.ts
index 9462d2c..0ca7bde 100644
--- a/functions/src/index.ts
+++ b/functions/src/index.ts
@@ -7,13 +7,85 @@
  * See a full list of supported triggers at https://firebase.google.com/docs/functions
  */
 
-import {onRequest} from "firebase-functions/v2/https";
-import * as logger from "firebase-functions/logger";
+// import {onSchedule} from "firebase-functions/v2/scheduler";
+import {
+  onDocumentCreated,
+  onDocumentUpdated
+} from "firebase-functions/v2/firestore";
 
-// Start writing functions
-// https://firebase.google.com/docs/functions/typescript
+import * as admin from "firebase-admin";
+import {error, info} from "firebase-functions/lib/logger";
 
-// export const helloWorld = onRequest((request, response) => {
-//   logger.info("Hello logs!", {structuredData: true});
-//   response.send("Hello from Firebase!");
-// });
+admin.initializeApp();
+
+exports.CalculateCategoryTotals = onDocumentCreated(
+  "leaderboard/{userId}", (event) => {
+    info("Calculating totals");
+    const snapshot = event.data;
+    if (!snapshot) {
+      error("Document does not exist");
+      return;
+    }
+    const data = snapshot.data();
+    const categoriesTotals = data.CategoryTotals as { [key: string]: number };
+    let total = 0;
+    for (const category in categoriesTotals) {
+      /* eslint guard-for-in: 1 */
+      total += categoriesTotals[category];
+    }
+    const db = admin.firestore();
+    const colpath = "leaderboard";
+    db.collection(colpath).doc(snapshot.id).update({total: total}).then(() => {
+      info("Total updated");
+    }).catch((error) => {
+      error("Error updating total: ", error);
+    });
+  });
+
+exports.UpdateCategoryTotals = onDocumentUpdated(
+  "leaderboard/{userId}", (event) => {
+    info("Updating totals on document update");
+    const snapshot = event.data;
+    if (!snapshot) {
+      error("Document does not exist");
+      return;
+    }
+    const data = snapshot.after.data();
+    const categoriesTotals = data.CategoryTotals as { [key: string]: number };
+    let total = 0;
+    for (const category in categoriesTotals) {
+      /* eslint guard-for-in: 1 */
+      total += categoriesTotals[category];
+    }
+    const db = admin.firestore();
+    const colpath = "leaderboard";
+    db.collection(colpath).doc(snapshot.after.id)
+      .update({total: total}).then(() => {
+        info("Total updated");
+      }).catch((error) => {
+        error("Error updating total: ", error);
+      });
+  });
+
+  export const getApiKey = functions.https.onCall(async (_, context) => {
+    info("Generating ApiKey");
+    info("Request data: ", context);
+    if (!context.auth) {
+      error("Not authenticated");
+      return {error: "Not authenticated"};
+    }
+    const db = admin.firestore();
+    const colpath = "apiKeys";
+    const docpath = context.auth?.uid;
+    const docref = db.collection(colpath).doc(docpath);
+    const doc = await docref.get();
+    if (doc.exists && doc.data() && doc.data()?.apiKey) {
+      info("ApiKey found");
+      return {apiKey: doc.data()?.apiKey};
+    } else {
+      const apiKey = genKey.generateApiKey();
+      await docref.set({apiKey: apiKey});
+      info("ApiKey set and sent to client");
+      return {apiKey: apiKey};
+    }
+  });