Building REST APIs with Flask-RESTful

🐍 FlaskLesson 11Advanced

While Flask can return JSON naturally, extensions like Flask-RESTful provide cleaner routing mechanisms and resource class structures for API design.

1 Class-Based Resource Mapping

Python — rest_api.py

from flask import Flask
from flask_restful import Resource, Api

app = Flask(__name__)
api = Api(app)

class UserResource(Resource):
    def get(self, user_id):
        return {"id": user_id, "username": "balaji"}

    def put(self, user_id):
        return {"updated": True}

api.add_resource(UserResource, "/users/<int:user_id>")

2 Code Challenge

Challenge: Extend the resource setup adding a PostListResource that supports both GET (retrieving all posts) and POST (creating a new post) actions using validation arguments.