diff --git a/server/types/index.ts b/server/types/index.ts
new file mode 100644
index 0000000..db20151
--- /dev/null
+++ b/server/types/index.ts
@@ -0,0 +1,4 @@
+// TODO: Complete interface / class declaration.
+export interface NodeSecrets {
+    monitoringToken: string; // TODO: Token type.
+}
diff --git a/server/utils/strings.js b/server/utils/strings.js
deleted file mode 100644
index e48f612..0000000
--- a/server/utils/strings.js
+++ /dev/null
@@ -1,27 +0,0 @@
-'use strict';
-
-const _ = require('lodash')
-
-module.exports = {
-    normalizeString (str) {
-        return _.isString(str) ? str.trim().replace(/\s+/g, ' ') : str;
-    },
-
-    normalizeMac (mac) {
-        // parts only contains values at odd indexes
-        const parts = mac.toUpperCase().replace(/:/g, '').split(/([A-F0-9]{2})/);
-
-        const macParts = [];
-
-        for (let i = 1; i < parts.length; i += 2) {
-            macParts.push(parts[i]);
-        }
-
-        return macParts.join(':');
-    },
-
-    parseInt (str) {
-        const parsed = _.parseInt(str, 10);
-        return parsed.toString() === str ? parsed : undefined;
-    }
-}
diff --git a/server/utils/strings.ts b/server/utils/strings.ts
new file mode 100644
index 0000000..5f9c345
--- /dev/null
+++ b/server/utils/strings.ts
@@ -0,0 +1,23 @@
+import _ from "lodash"
+
+export function normalizeString (str: string): string {
+    return _.isString(str) ? str.trim().replace(/\s+/g, ' ') : str;
+}
+
+export function normalizeMac (mac: string): string {
+    // parts only contains values at odd indexes
+    const parts = mac.toUpperCase().replace(/:/g, '').split(/([A-F0-9]{2})/);
+
+    const macParts = [];
+
+    for (let i = 1; i < parts.length; i += 2) {
+        macParts.push(parts[i]);
+    }
+
+    return macParts.join(':');
+}
+
+export function parseInt (str: string): number | undefined {
+    const parsed = _.parseInt(str, 10);
+    return parsed.toString() === str ? parsed : undefined;
+}
diff --git a/server/utils/urlBuilder.js b/server/utils/urlBuilder.js
deleted file mode 100644
index 04bba70..0000000
--- a/server/utils/urlBuilder.js
+++ /dev/null
@@ -1,41 +0,0 @@
-'use strict';
-
-const _ = require('lodash')
-
-const config = require('../config').config
-
-function formUrl(route, queryParams) {
-    let url = config.server.baseUrl;
-    if (route || queryParams) {
-        url += '/#/';
-    }
-    if (route) {
-        url += route;
-    }
-    if (queryParams) {
-        url += '?';
-        url += _.join(
-            _.map(
-                queryParams,
-                function (value, key) {
-                    return encodeURIComponent(key) + '=' + encodeURIComponent(value);
-                }
-            ),
-            '&'
-        );
-    }
-    return url;
-}
-
-module.exports = {
-    editNodeUrl () {
-        return formUrl('update');
-    },
-
-    monitoringConfirmUrl (nodeSecrets) {
-        return formUrl('monitoring/confirm', { token: nodeSecrets.monitoringToken });
-    },
-    monitoringDisableUrl (nodeSecrets) {
-        return formUrl('monitoring/disable', { token: nodeSecrets.monitoringToken });
-    }
-}
diff --git a/server/utils/urlBuilder.ts b/server/utils/urlBuilder.ts
new file mode 100644
index 0000000..03d180c
--- /dev/null
+++ b/server/utils/urlBuilder.ts
@@ -0,0 +1,40 @@
+import _ from "lodash"
+import {config} from "../config"
+import {NodeSecrets} from "../types"
+
+// TODO: Typed URLs
+
+function formUrl(route: string, queryParams?: {[key: string]: string}): string {
+    let url = config.server.baseUrl;
+    if (route || queryParams) {
+        url += '/#/';
+    }
+    if (route) {
+        url += route;
+    }
+    if (queryParams) {
+        url += '?';
+        url += _.join(
+            _.map(
+                queryParams,
+                function (value, key) {
+                    return encodeURIComponent(key) + '=' + encodeURIComponent(value);
+                }
+            ),
+            '&'
+        );
+    }
+    return url;
+}
+
+export function editNodeUrl (): string {
+    return formUrl('update');
+}
+
+export function monitoringConfirmUrl (nodeSecrets: NodeSecrets): string {
+    return formUrl('monitoring/confirm', { token: nodeSecrets.monitoringToken });
+}
+
+export function monitoringDisableUrl (nodeSecrets: NodeSecrets): string {
+    return formUrl('monitoring/disable', { token: nodeSecrets.monitoringToken });
+}