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Backend Challenge - Temperature Converter API

Introduction

The "Temperature Converter API" challenge is designed to create a REST API that converts temperatures between different units (e.g., Celsius, Fahrenheit, Kelvin).

Objectives

  • Set up a web server capable of handling API requests.
  • Implement endpoints for converting temperatures between different units.
  • Understand HTTP methods (GET) and status codes.

Instructions

  1. Objective: Develop a REST API that converts temperatures between various units.

  2. Environment Setup: Choose your preferred programming language (e.g., JavaScript, Python, Java, C#) and set up the necessary environment.

  3. Implementation Details:

    • Define endpoints for handling temperature conversion:
      • GET /convert?from={unit}&to={unit}&value={temperature}: Convert a specific temperature from one unit to another.
        • Supported units: Celsius, Fahrenheit, Kelvin.
        • Example: GET /convert?from=Celsius&to=Fahrenheit&value=100 should return 212 (since 100°C is 212°F).
    • Implement logic to perform the conversion calculations:
      • Celsius to Fahrenheit: (C × 9/5) + 32
      • Fahrenheit to Celsius: (F − 32) × 5/9
      • Celsius to Kelvin: C + 273.15
      • Kelvin to Celsius: K − 273.15
      • Fahrenheit to Kelvin: (F − 32) × 5/9 + 273.15
      • Kelvin to Fahrenheit: (K − 273.15) × 9/5 + 32
    • Return the converted temperature as JSON in the response.

  4. Testing: Test your API using an HTTP client (e.g., Postman, curl).

    • Send requests to the /convert endpoint with various combinations of units and temperatures.
    • Verify that the responses contain the expected converted temperature and that status codes are appropriate (e.g., 200 OK, 400 Bad Request).

Possible Improvements

  • Support Additional Units: Add support for other temperature units such as Rankine.
  • Batch Conversion: Implement an endpoint that allows conversion of multiple temperature values in one request.
  • Error Handling: Enhance error messages and responses, especially for invalid units or non-numeric temperature values.
  • Unit Detection: Allow the API to detect the unit from the input value (e.g., 100C, 212F) and convert it accordingly.
  • UI Integration: Build a simple frontend or UI component that interacts with this API for users to easily convert temperatures.

Conclusion

By completing this challenge, you will gain practical experience in developing a temperature converter API and learn essential practices for backend development. Explore additional improvements and challenges to further enhance your skills.

Happy coding!