diff --git a/package-lock.json b/package-lock.json
index bce6a86..774faec 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,9 +8,13 @@
       "name": "openapigen",
       "version": "1.0.0",
       "license": "ISC",
+      "dependencies": {
+        "uuid": "^11.1.0"
+      },
       "devDependencies": {
         "@accordproject/concerto-cli": "^3.4.0",
         "@ibm-cloud/openapi-ruleset": "^0.44.3",
+        "@types/uuid": "^10.0.0",
         "ibm-openapi-validator": "^0.96.4",
         "openapi-typescript": "^6.1.0",
         "reslate": "^3.0.0-5",
@@ -215,6 +219,16 @@
         "npm": ">=6"
       }
     },
+    "node_modules/@accordproject/concerto-core/node_modules/uuid": {
+      "version": "8.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+      "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "uuid": "dist/bin/uuid"
+      }
+    },
     "node_modules/@accordproject/concerto-cto": {
       "version": "3.4.0",
       "resolved": "https://registry.npmjs.org/@accordproject/concerto-cto/-/concerto-cto-3.4.0.tgz",
@@ -1107,6 +1121,13 @@
       "integrity": "sha512-FDJNkyhmKLw7uEvTxx5tSXfPeQpO0iy73Ry+PmYZJvQy0QIWX8a7kJ4kLWRf+EbTPJEPDSgPXHaM7pzr5lmvCg==",
       "dev": true
     },
+    "node_modules/@types/uuid": {
+      "version": "10.0.0",
+      "resolved": "https://registry.npmjs.org/@types/uuid/-/uuid-10.0.0.tgz",
+      "integrity": "sha512-7gqG38EyHgyP1S+7+xomFtL+ZNHcKv6DwNaCZmJmo1vgMugyF3TCnXVg4t1uk89mLNwnLtnY3TpOpCOyp1/xHQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/a-sync-waterfall": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/a-sync-waterfall/-/a-sync-waterfall-1.0.1.tgz",
@@ -8283,12 +8304,16 @@
       }
     },
     "node_modules/uuid": {
-      "version": "8.3.2",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
-      "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
-      "dev": true,
+      "version": "11.1.0",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-11.1.0.tgz",
+      "integrity": "sha512-0/A9rDy9P7cJ+8w1c9WD9V//9Wj15Ce2MPz8Ri6032usz+NfePxx5AcN3bN+r6ZL6jEo066/yNYB3tn4pQEx+A==",
+      "funding": [
+        "https://github.com/sponsors/broofa",
+        "https://github.com/sponsors/ctavan"
+      ],
+      "license": "MIT",
       "bin": {
-        "uuid": "dist/bin/uuid"
+        "uuid": "dist/esm/bin/uuid"
       }
     },
     "node_modules/valid-url": {
diff --git a/package.json b/package.json
index 76ce187..86766ef 100644
--- a/package.json
+++ b/package.json
@@ -18,10 +18,14 @@
   "devDependencies": {
     "@accordproject/concerto-cli": "^3.4.0",
     "@ibm-cloud/openapi-ruleset": "^0.44.3",
+    "@types/uuid": "^10.0.0",
     "ibm-openapi-validator": "^0.96.4",
     "openapi-typescript": "^6.1.0",
     "reslate": "^3.0.0-5",
     "swagger-combine": "^1.4.0",
     "widdershins": "^4.0.1"
+  },
+  "dependencies": {
+    "uuid": "^11.1.0"
   }
 }
diff --git a/server/index.ts b/server/index.ts
index e400e69..0b5539c 100644
--- a/server/index.ts
+++ b/server/index.ts
@@ -1,48 +1,94 @@
-import 'source-map-support/register';
-import OpenAPIBackend, { Request } from 'openapi-backend';
-import Express from 'express';
-import morgan from 'morgan'
-import path from 'path';
+import "source-map-support/register";
+import OpenAPIBackend, { Request } from "openapi-backend";
+import Express from "express";
+import morgan from "morgan";
+import path from "path";
+import { v4 as uuidv4 } from "uuid";
 
-import { Request as ExpressReq, Response as ExpressRes } from 'express';
+import { Request as ExpressReq, Response as ExpressRes } from "express";
 
 const app = Express();
 app.use(Express.json());
 
-const openApiPath = path.join(__dirname, '..', '..', 'openapi.json');
+const openApiPath = path.join(__dirname, "..", "..", "openapi.json");
 console.log(openApiPath);
 
+const templates: Record<string, any> = {};
+
 // define api
 const api = new OpenAPIBackend({
-    quick: true, // disabled validation of OpenAPI on load
-    definition: openApiPath,
-    handlers: {
-        listTemplates: async (c, req: Express.Request, res: Express.Response) =>
-            res.status(200).json([]),
-        createTemplate: async (c, req: Express.Request, res: Express.Response) =>
-            res.status(200).json({}),
-        getTemplate: async (c, req: Express.Request, res: Express.Response) =>
-            res.status(200).json({}),
-        replaceTemplate: async (c, req: Express.Request, res: Express.Response) =>
-            res.status(200).json({}),
-        deleteTemplate: async (c, req: Express.Request, res: Express.Response) =>
-            res.status(200).json({}),
-        validationFail: async (c, req: ExpressReq, res: ExpressRes) => res.status(400).json({ err: c.validation.errors }),
-        notFound: async (c, req: ExpressReq, res: ExpressRes) => res.status(404).json({ err: 'not found' }),
-        notImplemented: async (c, req: ExpressReq, res: ExpressRes) => {
-            const { status, mock } = c.api.mockResponseForOperation(c.operation.operationId);
-            return res.status(status).json(mock);
-        },
+  quick: true, // disabled validation of OpenAPI on load
+  definition: openApiPath,
+  handlers: {
+    createTemplate: async (c, req: Express.Request, res: Express.Response) => {
+      const { $class, name, ...otherData } = req.body;
+
+      if (!$class) {
+        return res
+          .status(400)
+          .json({ error: "Missing required property: $class" });
+      }
+
+      const id = uuidv4();
+
+      const newTemplate = { id, $class, name, ...otherData };
+      templates[id] = newTemplate;
+
+      return res
+        .status(201)
+        .header("Location", `/templates/${id}`)
+        .json({ id });
+    },
+
+    getTemplate: async (c, req: Express.Request, res: Express.Response) => {
+      const { id } = req.params;
+
+      const template = templates[id];
+
+      if (!template) {
+        return res.status(404).json({ error: "Template not found" });
+      }
+
+      res.json(template);
+    },
+
+    listTemplates: async (c, req: Express.Request, res: Express.Response) =>
+      res.status(200).json(Object.values(templates)),
+
+    deleteTemplate: async (c, req: Express.Request, res: Express.Response) => {
+      const { id } = req.params;
+
+      if (!templates[id]) {
+        return res.status(404).json({ error: "Template not found" });
+      }
+
+      delete templates[id];
+      res.status(204).send();
+    },
+
+    replaceTemplate: async (c, req: Express.Request, res: Express.Response) =>
+      res.status(200).json({}),
+
+    validationFail: async (c, req: ExpressReq, res: ExpressRes) =>
+      res.status(400).json({ err: c.validation.errors }),
+    notFound: async (c, req: ExpressReq, res: ExpressRes) =>
+      res.status(404).json({ err: "not found" }),
+    notImplemented: async (c, req: ExpressReq, res: ExpressRes) => {
+      const { status, mock } = c.api.mockResponseForOperation(
+        c.operation.operationId
+      );
+      return res.status(status).json(mock);
     },
+  },
 });
 
 api.init();
 
 // logging
-app.use(morgan('combined'));
+app.use(morgan("combined"));
 
 // use as express middleware
 app.use((req, res) => api.handleRequest(req as Request, req, res));
 
 // start server
-app.listen(9000, () => console.info('api listening at http://localhost:9000'));
\ No newline at end of file
+app.listen(9000, () => console.info("api listening at http://localhost:9000"));