06-currency-converter-api.md

Backend Challenge - Currency Converter API

Introduction

Build a web service that converts amounts between different currencies using fixed exchange rates.

This challenge is tech-agnostic. Choose your preferred programming language and framework. For beginner level, no database required.

Objectives

• Handle currency conversion logic
• Manage multiple currency pairs
• Provide accurate calculations

Instructions

1. Environment Setup:

   • Programming language and web framework

2. Implementation Details:

   • Create a GET endpoint at /convert that accepts amount, from, and to parameters (e.g., from=USD, to=EUR)
   • Use fixed exchange rates (e.g., 1 USD = 0.85 EUR)

3. Testing:

   • Test with: GET /convert?amount=100&from=USD&to=EUR

Possible Improvements

• Fetch real-time rates from an external API
• Support more currencies
• Add historical conversion

Conclusion

By completing this challenge, you will learn to implement financial calculations in web services.

Happy coding!