Update README.md

Signed-off-by: Pranav Metil <76805382+Pranav5255@users.noreply.github.com>

Author: Pranav5255

crud-app-mongodb/README.md

@@ -1 +1,72 @@
-# samples-mongodb
+# CRUD app using MongoDB
+
+This repository contains a sample .NET 7 Web API that uses MongoDB for CRUD operations and integrates with [Keploy](https://keploy.io) to auto-generate and run test cases by recording real API traffic.
+
+---
+
+## 📦 Tech Stack
+
+- [.NET 8 Web API](https://dotnet.microsoft.com/)
+- [MongoDB](https://www.mongodb.com/)
+- [Keploy](https://keploy.io) – API testing and mocking tool
+
+---
+
+## 🚀 Getting Started
+
+### 1. Clone the Repository
+
+``` bash
+git clone https://github.com/Pranav5255/samples-mongodb.git
+cd samples-mongodb
+```
+
+### 2. Configure MongoDB
+Update `appsettings.json` with your MongoDB connection string: 
+
+``` json
+{
+  "ConnectionString": "mongodb://localhost:27017",
+  "DatabaseName": "UserDb",
+  "UsersCollectionName": "Users"
+}
+```
+### 3. Run the .NET App
+``` bash
+dotnet run
+```
+
+App runs by default at:
+``` arduino
+http://localhost:5067
+```
+
+You can test endpoints like:
+``` http
+GET    /users
+POST   /users
+GET    /users/{id}
+```
+
+## 🐾 Generate Test Cases with Keploy
+### 1. Download Keploy
+``` powershell
+curl -O -L https://keploy.io/install.sh && source install.sh
+```
+
+### 2. Record API Calls
+``` bash
+keploy.exe record --proxy-port 8080 --app-port 5067 --path ./keploy-tests
+```
+
+Now send traffic to:
+``` bash
+http://localhost:8080/users
+```
+Use Postman, Swagger or cURL to generate traffic.
+
+### 3. Replay Tests
+After Recording:
+``` bash
+keploy.exe test --path ./keploy-tests
+```