Question 13: Consider the Flask Restful API code given below: File na…

1from flask import Flask, request
2from flask_restful import Resource, Api
3
4app = Flask(__name__)
5api = Api(app)
6
7
8class APICalculator(Resource):
9   def post(self):
10       d = request.json
11       a = int(d["val1"])
12       b = int(d["val2"])
13       oper = d["operator"]
14       if oper == "+":
15           return {"Sum=": (a + b)}, 200
16       elif oper == "-":
17           return {"Difference=": (a - b)}, 200
18       elif oper == "*":
19           return {"Product=": (a * b)}, 200
20       else:
21           return {"Error": "Invalid option"}, 401
22
23api.add_resource(APICalculator, "/")
24
25app.run(debug=True)