Random Data Fetcher Tornado Web Server

This code creates a Tornado web server that can randomly fetch data from a predefined list of URLs and return the data to the client.

Technology Stack : Tornado, HTTPClient

Code Type : Tornado Web Server

Code Difficulty : Intermediate

                
                    
import tornado.ioloop
import tornado.web
import tornado.httpclient
import random

def fetch_random_data(url):
    # Create HTTP client
    client = tornado.httpclient.HTTPClient()
    # Fetch data from the given URL
    response = client.fetch(url)
    # Return the response body
    return response.body

def random_data_handler(request):
    # Generate a random URL from a predefined list
    urls = ["http://jsonplaceholder.typicode.com/todos/1", "http://jsonplaceholder.typicode.com/posts/1", "http://jsonplaceholder.typicode.com/users/1"]
    random_url = random.choice(urls)
    # Fetch data from the random URL
    data = fetch_random_data(random_url)
    # Return the fetched data as JSON
    return tornado.web.HTTPResponse(
        body=data,
        headers={"Content-Type": "application/json"}
    )

def main():
    # Create a Tornado web application
    application = tornado.web.Application([
        (r"/random_data", random_data_handler)
    ])
    # Start the Tornado I/O loop
    application.listen(8888)
    tornado.ioloop.IOLoop.current().start()

if __name__ == "__main__":
    main()