This is a Next.js project bootstrapped with create-next-app.

Getting Started

First, run the development server:

npm run dev
# or
yarn dev
# or
pnpm dev
# or
bun dev

Open http://localhost:3000 with your browser to see the result.

*** Ask for admin credentials ***

Currency Calculator Application

Overview

The Currency Calculator application consists of two main components:

1. REST API: Built using Node.js to handle currency conversion, manage exchange rates, and perform CRUD operations. Includes authentication for protected endpoints.

2. Graphical User Interface (GUI): Developed using React Js allowing users to interact with the API for currency conversion, adding/updating exchange rates, and managing currencies.

Features

API

• Currency Conversion: Convert a specific amount from a base currency to a target currency.
• CRUD Operations: Add, read, update, and delete currencies and their exchange rates dynamically.
• Authentication and Authorization: Secured endpoints (with CRUD operations) with a simple login mechanism and NEXT_PUBLIC_ADMIN_PASSWORD_HASH, bcrypt, JSON Web Tokens (JWT).

GUI

• Conversion Tool: Simple interface to select base/target currencies, input amounts, and view conversion results.
• Currency Management: Add or update currencies and their rates using forms.
• Authentication: Log in to access protected API features like managing currencies.
• Dynamic Updates: Leverages API endpoints to fetch and update live data.

Tech Stack

Backend

• Node.js
• Database: SQLite3 (for storing users and exchange rates)
• Authentication: JSON Web Tokens (JWT)
• Environment Variables: dotenv for managing secrets like JWT_SECRET.

Frontend

• React
• Styling: Tailwind CSS
• State Management: React's useState/useEffect
• API Communication: Fetch API

Installation and Setup

Backend Setup

1. Clone the Repository: ```bash git clone cd currency-calculator-api

Jest testing

• jest test
• For testing run the command npm test