Addition, subtraction, division and multiplication of two numbers

• cal.py: includes 4 endpoints, explain in Endpoints section
• cal_eval.py: includes only 1 endpoint, explain in Endpoints section

To run this project, an environment with Python 3.7 and Flask is required

git clone https://github.com/minhtanngo/Calculator-API-Flask.git

Access the project directory

cd Calculator-API-Flask

Inside the project directory, execute the following:

• To use the cal.py

set FLASK_APP=cal.py 
flask run

• To use the cal_eval.py

set FLASK_APP=cal_eval.py 
flask run

You should see something like this if you configured correctly:

 * Serving Flask app "cal.py"
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: off
 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)

The webservice has the following endpoints:

• Add two numbers and return the result

POST: /add

• Subtract two numbers and return the result

POST: /sub

• Divide two numbers and return the result

POST: /div

• Multiply two numbers and return the result

POST: /mult

The endpoints can be tested with the following body and URLs:

POST Body:
{"n1":5, "n2":10}

URLs:
http://localhost:5000/add
http://localhost:5000/sub
http://localhost:5000/div
http://localhost:5000/mult