Empowering Web Development with Encapsulation in Python

Streamline web apps, boost maintainability, and reduce errors using Python’s encapsulation superpowers

Photo by Tran Mau Tri Tam ✪ on Unsplash

Web development comprises many moving pieces. From front-end frameworks to back-end APIs, encapsulation provides structure, helping developers minimize bugs, speed up troubleshooting, and promote separation of concerns.

This article outlines the importance of encapsulation in web development using Python.

Building RESTful Services with Flask

Flask, a popular microframework for developing web applications, lends itself nicely to encapsulation. Each route handler can represent a standalone capsule responsible for specific business logic, as demonstrated in this toy example:

from flask import Flask, jsonify

app = Flask(__name__)

class UserService:
    def __init__(self):
        self.data = {}

    def register(self, name, occupation):
        uid = max(self.data.keys(), default=-1) + 1
        self.data[uid] = {'name': name, 'occupation': occupation}
        return uid

    def delete(self, uid):
        if uid in self.data:
            del self.data[uid]
        return uid not in self.data

user_service = UserService()

@app.route('/register'…