As the scale of software systems continues to expand and business needs increase, monolithic application architectures gradually expose some problems, such as poor scalability, complex deployment, and high coupling. In order to solve these problems, the concept of microservice architecture gradually emerged. This article will introduce the evolution process from a single application to a microservice architecture and provide corresponding source code examples.
- Monolithic Application Architecture
In a monolithic application architecture, the entire application is built as a single deployment unit. Typically, this architecture consists of a front-end user interface, a back-end business logic, and a database. Here is sample code for a simple monolithic application:
# main.py
from flask import Flask, request
from database import Database
app = Flask(__name__)
db = Database()
@app.route