Tornado Web App with Random URL Fetching

This code example creates a simple Tornado web application, including an asynchronous HTTP client to fetch responses from a random URL, as well as a basic HTTP request handler.

Technology Stack : Tornado, HTTPClient

Code Type : Tornado Web Application

Code Difficulty : Intermediate

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

def fetch_random_url():
    urls = [
        "https://www.google.com",
        "https://www.bing.com",
        "https://www.wikipedia.org",
        "https://www.reddit.com"
    ]
    client = tornado.httpclient.AsyncHTTPClient()
    url = random.choice(urls)
    def handle_response(response):
        print("Response from", url, "status:", response.code)
    client.fetch(url, handle_response)

class MainHandler(tornado.web.RequestHandler):
    def get(self):
        self.write("Hello, world")

def make_app():
    return tornado.web.Application([
        (r"/", MainHandler),
    ])