Flask Routing Explained
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Flask Routing Explained
Flask, a lightweight Python web framework, is widely known for its simplicity and flexibility. One of its core features is routing, which defines how a web application responds to client requests. Simply put, routing is the process of mapping URLs to specific functions in your Flask application.
In Flask, routes are created using the @app.route() decorator. This decorator binds a URL path to a function, known as a view function. For example:
from flask import Flask
app = Flask(__name__)
@app.route("/")
def home():
return "Welcome to Flask!"
Here, visiting the root URL (/) triggers the home() function, returning a response to the browser.
Flask also supports dynamic routing, allowing you to pass variables through the URL. For instance:
@app.route("/user/<name>")
def user(name):
return f"Hello, {name}!"
When you visit /user/Alex, the app responds with Hello, Alex!. You can even specify types like <int:id> for integer values.
Another key aspect is handling HTTP methods. By default, routes handle GET requests, but you can specify others such as POST, PUT, or DELETE:
@app.route("/submit", methods=["POST"])
def submit():
return "Form submitted!"
In summary, Flask routing gives developers a clean and powerful way to define application endpoints. By combining static and dynamic routes with different HTTP methods, you can build everything from simple pages to complex APIs with ease.
Read More
Handling Forms and Validation in HTML
Vue.js Basics for Python Backends
Introduction to React.js for Python Developers
Integrating jQuery into Flask/Django
Using Bootstrap in Python Projects
DOM Manipulation with Vanilla JavaScript
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