diff --git a/catDataMocking/package.json b/catDataMocking/package.json
new file mode 100644
index 0000000..0d16fb0
--- /dev/null
+++ b/catDataMocking/package.json
@@ -0,0 +1,21 @@
+{
+  "scripts": {
+    "build": "tsc",
+    "start:dev": "tsc-watch --onSuccess \"node dist/app.js\"",
+    "prestart": "npm run build",
+    "start": "node dist/app.js"
+  },
+  "devDependencies": {
+    "@types/cors": "^2.8.18",
+    "@types/express": "^5.0.2",
+    "@types/node": "^15.3.0",
+    "prettier": "^2.2.1",
+    "tsc": "^2.0.3",
+    "tsc-watch": "^4.2.9",
+    "typescript": "^4.3.4"
+  },
+  "dependencies": {
+    "cors": "^2.8.5",
+    "express": "^5.1.0"
+  }
+}
diff --git a/catDataMocking/src/app.model.ts b/catDataMocking/src/app.model.ts
new file mode 100644
index 0000000..2f892d9
--- /dev/null
+++ b/catDataMocking/src/app.model.ts
@@ -0,0 +1,84 @@
+export type CatType = {
+  id: string;
+
+  name: string;
+
+  age: number;
+
+  species: string;
+
+  isCute: boolean;
+
+  friends: string[];
+};
+
+export const Cat: CatType[] = [
+  {
+    id: "fsduifh",
+    name: "blue",
+
+    age: 8,
+
+    species: "Russian Blue",
+
+    isCute: true,
+
+    friends: ["asdfhj29009", "WE09tju2j"],
+  },
+
+  {
+    id: "iohf2309q4hr",
+
+    name: "som",
+
+    age: 4,
+
+    species: "Sphynx cat",
+
+    isCute: true,
+
+    friends: ["weju0fj20qj", "asdfhj29009", "weju0fj20qj"],
+  },
+
+  {
+    id: "WE09tju2j",
+
+    name: "lean",
+
+    age: 6,
+
+    species: "Munchkin",
+
+    isCute: false,
+
+    friends: [],
+  },
+
+  {
+    id: "asdfhj29009",
+
+    name: "star",
+
+    age: 10,
+
+    species: "Scottish Fold",
+
+    isCute: true,
+
+    friends: ["weju0fj20qj"],
+  },
+
+  {
+    id: "weju0fj20qj",
+
+    name: "red",
+
+    age: 2,
+
+    species: "Sharm",
+
+    isCute: false,
+
+    friends: [],
+  },
+];
diff --git a/catDataMocking/src/app.ts b/catDataMocking/src/app.ts
new file mode 100644
index 0000000..cdd4bb6
--- /dev/null
+++ b/catDataMocking/src/app.ts
@@ -0,0 +1,18 @@
+import * as express from "express";
+import * as cors from "cors";
+
+import { CatType, Cat } from "./app.model";
+
+const app: express.Express = express();
+const port: number = 8000;
+
+app.use(cors());
+
+app.get("/", (req: express.Request, res: express.Response) => {
+  console.log(req);
+  res.send({ cats: Cat });
+});
+
+app.listen(port, () => {
+  console.log(`server is on ${port}`);
+});
diff --git a/catDataMocking/tsconfig.json b/catDataMocking/tsconfig.json
new file mode 100644
index 0000000..9c7d8ec
--- /dev/null
+++ b/catDataMocking/tsconfig.json
@@ -0,0 +1,20 @@
+//* https://www.staging-typescript.org/tsconfig
+
+{
+    "compilerOptions": {
+      "strict": true,
+      "module": "commonjs",
+      "declaration": true,
+      "removeComments": true,
+      "emitDecoratorMetadata": true,
+      "experimentalDecorators": true,
+      "allowSyntheticDefaultImports": true,
+      "target": "ES5",
+      "sourceMap": true,
+      "outDir": "./dist",
+      "baseUrl": "./src",
+      "incremental": true
+    },
+    "include": ["src/**/*"]
+  }
+  
\ No newline at end of file
diff --git a/letsStart/package.json b/letsStart/package.json
index 9ce32b1..0d16fb0 100644
--- a/letsStart/package.json
+++ b/letsStart/package.json
@@ -6,6 +6,7 @@
     "start": "node dist/app.js"
   },
   "devDependencies": {
+    "@types/cors": "^2.8.18",
     "@types/express": "^5.0.2",
     "@types/node": "^15.3.0",
     "prettier": "^2.2.1",
@@ -14,6 +15,7 @@
     "typescript": "^4.3.4"
   },
   "dependencies": {
+    "cors": "^2.8.5",
     "express": "^5.1.0"
   }
 }
diff --git a/letsStart/src/app.ts b/letsStart/src/app.ts
index bf6242c..cd9a2ed 100644
--- a/letsStart/src/app.ts
+++ b/letsStart/src/app.ts
@@ -1,13 +1,20 @@
 import * as express from "express";
+import * as cors from "cors";
 
 const app: express.Express = express();
 const port: number = 8000;
 
-app.get("/", (req: express.Request, res: express.Response) => {
+app.use(cors());
+
+app.get("/test", (req: express.Request, res: express.Response) => {
   console.log(req);
   res.send("Hello World!");
 });
 
+app.post("/test", (req, res) => {
+  res.send({ person: "Test" });
+});
+
 app.listen(port, () => {
   console.log(`Example app listening at http://localhost:${port}`);
 });