Welcome to the Ultimate Guide to HTTPDispatcher

HTTPDispatcher is a powerful Python library designed to simplify the handling of HTTP requests.
Whether you’re building a simple web server or a more complex application, HTTPDispatcher provides a plethora
of utilities and functionalities to make your job easier.

Getting Started with HTTPDispatcher

To install HTTPDispatcher, simply run:

 pip install httpdispatcher 

Key Features and API Examples

1. Creating a Simple Web Server

 from http.server import HTTPServer from httpdispatcher import BaseHTTPDispatcher
class SimpleHandler(BaseHTTPDispatcher):
    def do_GET(self):
        self.send_response(200)
        self.send_header('Content-type', 'text/html')
        self.end_headers()
        self.wfile.write(b"Hello, World!")

server = HTTPServer(('localhost', 8080), SimpleHandler) print("Starting server on http://localhost:8080") server.serve_forever() 

2. Handling Different HTTP Methods (GET, POST)

 class MyHandler(BaseHTTPDispatcher):
    def do_GET(self):
        self.send_response(200)
        self.send_header('Content-type', 'text/html')
        self.end_headers()
        self.wfile.write(b"GET request received")

    def do_POST(self):
        content_length = int(self.headers['Content-Length'])
        post_data = self.rfile.read(content_length)
        self.send_response(200)
        self.send_header('Content-type', 'text/html')
        self.end_headers()
        self.wfile.write(b"POST request received: " + post_data)

3. Routing Support

 from httpdispatcher import HTTPDispatcher, HTTPDispatcherApp
class MyRouteHandler(HTTPDispatcher):
    def get(self, request, response):
        response.send_response(200)
        response.send_header('Content-type', 'text/html')
        response.end_headers()
        response.wfile.write(b"GET request on /home")

    @staticmethod
    def configure_routes():
        return [
            ("GET", "/home", MyRouteHandler),
        ]

app = HTTPDispatcherApp() app.add_route(MyRouteHandler.configure_routes()) app.run(port=8080) 

4. Middleware Support

 from httpdispatcher import HTTPDispatcher, HTTPDispatcherApp, Middleware
class AuthenticationMiddleware(Middleware):
    def before_request(self, request, response):
        if "Authorization" not in request.headers:
            response.send_response(401)
            response.send_header('Content-type', 'text/html')
            response.end_headers()
            response.wfile.write(b"Unauthorized")
            return False
        return True

app = HTTPDispatcherApp() app.add_middleware(AuthenticationMiddleware()) app.run(port=8080) 

5. JSON Response Handling

 import json from httpdispatcher import HTTPDispatcher, HTTPDispatcherApp
class JSONHandler(HTTPDispatcher):
    def get(self, request, response):
        data = {"message": "Hello, World!"}
        response.send_response(200)
        response.send_header('Content-type', 'application/json')
        response.end_headers()
        response.wfile.write(json.dumps(data).encode())

app = HTTPDispatcherApp() app.add_route([("GET", "/json", JSONHandler)]) app.run(port=8080) 

Full Application Example

Let’s create a full application that uses all of the above features:

 from http.server import BaseHTTPRequestHandler, HTTPServer from httpdispatcher import HTTPDispatcher, HTTPDispatcherApp, Middleware import json
class SimpleHandler(HTTPDispatcher):
    def get(self, request, response):
        response.send_response(200)
        response.send_header('Content-type', 'text/html')
        response.end_headers()
        response.wfile.write(b"Hello, World!")

class JSONHandler(HTTPDispatcher):
    def get(self, request, response):
        data = {"message": "Hello, World!"}
        response.send_response(200)
        response.send_header('Content-type', 'application/json')
        response.end_headers()
        response.wfile.write(json.dumps(data).encode())

class AuthMiddleware(Middleware):
    def before_request(self, request, response):
        if "Authorization" not in request.headers:
            response.send_response(401)
            response.send_header('Content-type', 'text/html')
            response.end_headers()
            response.wfile.write(b"Unauthorized")
            return False
        return True

app = HTTPDispatcherApp() app.add_middleware(AuthMiddleware()) app.add_route([
    ("GET", "/home", SimpleHandler),
    ("GET", "/json", JSONHandler),
]) app.run(port=8080) 

With HTTPDispatcher, you can seamlessly create and manage your HTTP requests and responses. It’s an excellent
library for both beginners and advanced users looking to streamline their web server development process.

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