React Weather App

Live at : meteo.arnaudrabel.com

A simple React application that displays a 5-day weather forecast for a searched city. The project was recently modernized from its original 2020-era codebase to a 2025/2026 standard using Vite and TypeScript.

Tech Stack

• React: For building the user interface.
• Vite: As the modern, fast build tool and development server.
• TypeScript: For static typing and improved developer experience.
• Bootstrap: For basic styling and components.

Project Modernization (2020 to 2025)

This project was recently upgraded to resolve security vulnerabilities reported by Dependabot and to bring it up to modern web development standards.

The key updates include:

• Migration from Create React App to Vite: Switched the underlying build tool for faster performance and a more modern development environment.
• JavaScript to TypeScript Conversion: All .js files were migrated to .tsx, and strict typing was applied across all components and utility functions.
• Replaced prop-types with Interfaces: Runtime prop-types validation was removed and replaced with compile-time TypeScript interfaces, providing better type safety and eliminating a legacy dependency.
• Secure Handling of API Keys: All hardcoded API keys were removed from the source code and moved into a .env file. This is a critical security practice to prevent leaking secrets.

By updating the entire dependency tree and removing outdated packages, the common security alerts were resolved.

Getting Started

To run this project locally, follow these steps:

1. Clone the repository:

   git clone <your-repo-url>
   cd <your-repo-name>
   

2. Install dependencies:

   npm install
   

3. Create an environment file:

   Create a file named .env in the root of the project and add your API keys. Vite requires these variables to be prefixed with VITE_.

   VITE_METEO_KEY=your_openweathermap_api_key
   VITE_GEO_KEY=your_ipstack_api_key
   VITE_IPIFY_API_KEY=your_ipify_api_key
   

4. Run the development server:

   npm run dev
   

   The application should now be running on http://localhost:5173 (or another port if 5173 is busy).