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Week 5.2 React Project —Todo Application

Up until now, our discussions have primarily revolved around theoretical concepts. In this lecture, Harkirat takes a practical approach by guiding us through the hands-on process of building a to-do application. We’ll be applying the knowledge we’ve gained so far, specifically focusing on implementing the frontend using React and the backend using Node.js, MongoDB, and Express — creating a classic MERN stack application.

While there are no specific notes provided for this section, a mini guide is outlined below to assist you in navigating through the process of building the application. Therefore, it is strongly advised to actively follow along during the lecture for a hands-on learning experience.

Building a MERN Stack Todo Application with Zod

1] Environment Setup

  • Install Node.js and npm on your machine.
  • Set up a new React project using Vite: npm create vite@latest.
  • Create a new Node.js project for the backend.

2] Frontend Development (React)

  • Design the UI structure for your to-do app.
  • Create React components for adding, displaying, and deleting todos.
  • Utilize React Hooks (useState, useEffect) for managing the frontend state.
  • Set up a clean and user-friendly interface for a seamless user experience.

3] Backend Development (Node.js, Express, MongoDB, Zod)

  • Configure a Node.js and Express backend server.
  • Integrate MongoDB for data storage.
  • Implement Zod for backend data validation to ensure secure and valid inputs.
  • Create API endpoints for handling todo operations like add, fetch, and delete.

4] Zod Integration

  • Install Zod in your Node.js backend project using npm: npm install zod.
  • Define schemas using Zod to validate incoming data.
  • Integrate Zod validation within your API routes for robust data validation.

5] Connect Frontend to Backend

  • Establish a connection between your React frontend and Node.js backend.
  • Make API calls from the frontend to interact with the backend endpoints.

6] Run the Application

  • Start both the React and Node.js servers.
  • Open your to-do app in a browser and verify its functionality.

By following these steps, you’ll gain practical insights into building a MERN stack application with Zod integration, ensuring both frontend and backend components work seamlessly.