Flask Web App for Summing JSON-Encoded Numbers

This code creates a Flask web application that can accept JSON data containing two numbers and return their sum.

Technology Stack : Flask, JSON

Code Type : Flask Web Application

Code Difficulty : Intermediate

                
                    
from flask import Flask, jsonify, request

def create_app():
    app = Flask(__name__)

    @app.route('/add', methods=['POST'])
    def add_numbers():
        data = request.get_json()
        a = data.get('a')
        b = data.get('b')
        if a is None or b is None:
            return jsonify({"error": "Missing 'a' or 'b' in JSON payload"}), 400
        return jsonify({"result": a + b})

    return app

# Flask is used to create a web application that can accept JSON data and perform basic arithmetic operations.