Random URL Fetcher Web Application

This function creates a simple Tornado web application that randomly accesses a predefined list of URLs and returns the results to the user.

Technology Stack : Tornado, HTTPClient

Code Type : Web Application

Code Difficulty : Intermediate

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

def fetch_random_url():
    urls = [
        "http://www.google.com",
        "http://www.example.com",
        "http://www.wikipedia.org",
        "http://www.stackoverflow.com"
    ]
    return random.choice(urls)

class MainHandler(tornado.web.RequestHandler):
    def get(self):
        url = fetch_random_url()
        http_client = tornado.httpclient.AsyncHTTPClient()
        http_client.fetch(url, self.handle_response)

    def handle_response(self, response):
        if response.error:
            self.write("Error: " + response.error)
        else:
            self.write("Fetched URL: " + response.request.url)

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