echo-api.md

Backend Challenge - Echo API

Introduction

The "Echo API" challenge is designed to build a simple RESTful API that echoes back the data sent in a POST request.

Objectives

• Set up a web server capable of handling API requests.
• Create an endpoint (/echo) that accepts data via HTTP POST requests and returns the same data.
• Understand HTTP methods (POST for sending data) and status codes.

Instructions

1. Objective: Develop a RESTful API that echoes back data sent in a POST request.

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

3. Implementation Details:

   • Set up a web server with an endpoint (/echo) that accepts POST requests.
   • Retrieve the data sent in the request body.
   • Return the received data as JSON or plain text in the response body.

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

   • Send POST requests to the /echo endpoint with different data payloads.
   • Verify that the response contains the same data as sent in the request.

Possible Improvements

• Response Format: Add options to return the echoed data in different formats (e.g., JSON, XML).
• Validation: Implement validation to ensure the POST request body is not empty.
• Error Handling: Handle cases where the API cannot echo back the data (e.g., server error).
• Logging: Introduce logging to track incoming requests and responses for debugging purposes.

Conclusion

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

Happy coding!