diff --git a/index.js b/index.js
new file mode 100644
index 0000000..f3c5eca
--- /dev/null
+++ b/index.js
@@ -0,0 +1,21 @@
+
+/**
+ * 
+ * @param {number} len length of the id which shall be generated 
+ * @returns 
+ */
+
+const generateId = (len) => {
+    const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
+    let result = '';
+    for (let i = 0; i < len; i++) {
+        const randomIndex = Math.floor(Math.random() * characters.length);
+        result += characters[randomIndex];
+    }
+
+    return result;
+}
+
+module.exports = {
+    generateId
+}
\ No newline at end of file
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..6e1b0de
--- /dev/null
+++ b/package.json
@@ -0,0 +1,12 @@
+{
+  "name": "id-generator",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC"
+}