Http Status codes

1. Http Status codes

Run the simple python server and execute the following curl commands to get an idea about the HTTP methods and their status codes.

curl-i http://localhost:5000/get

curl --H "Content-Type: application/json" -X POST -d '("username":"user", "password": "pass"}" http://localhost:5000/post

curl-i-H "Content-Type: application/json" -X POST -d "("username":"wrong", "password": "wrong")' http://localhost:5000/post

curl-i http://localhost:5000/redirect

curl -i http://localhost:5000/divide_by_zero

curl-i http://localhost:5000/unavailable_resource

Steps to do the handson:

Install the necessary requirements (run -> install) Run the server(run -> run)

from http.server import BaseHTTPRequestHandler, HTTPServer

class SimpleHTTPRequestHandler(BaseHTTPRequestHandler):
    def do_GET(self):
        if self.path == '/get':
            self.send_response(200)
            self.send_header('Content-type', 'text/html')
            self.end_headers()
            self.wfile.write(b"GET request received")

        elif self.path == '/redirect':
            self.send_response(302)
            self.send_header('Location', 'http://www.example.com')
            self.end_headers()

        elif self.path == '/divide_by_zero':
            This will intentionally raise a ZeroDivisionError
            result = 1 / 0

        else:
            self.send_response(404)
            self.end_headers()

    def do_POST(self):
        content_length = int(self.headers['Content-Length'])
        post_data = self.rfile.read(content_length)
        if self.path == '/post':
            if post_data.decode('utf-8') == '{"username":"user", "password": "pass"}':
                self.send_response(200)
                self.send_header('Content-type', 'application/json')
                self.end_headers()
                self.wfile.write(b"POST request received with correct credentials")
            else:
                self.send_response(401)
                self.send_header('Content-type', 'application/json')
                self.end_headers()
                self.wfile.write(b"Unauthorized")
        else:
            self.send_response(404)
            self.end_headers()

def run(server_class=HTTPServer, handler_class=SimpleHTTPRequestHandler, port=5000):
    server_address = ('', port)
    httpd = server_class(server_address, handler_class)
    print("Starting server on port {}...".format(port))
    httpd.serve_forever()


if __name__ == "__main__":
    app.run(debug=True)