In this project I use Python3, Flask and Connexion to build a REST APIs that can include i/o validation. The project also provides Swagger documentation. In addition, a web application is created that demonstrates using the API with Javascript. The REST API builds and serves a simple people data structure.
The project consists of several steps.
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First, a web server using Flask is created. Then Connexion module is used to add a REST API endpoint. This in turn allows a Python program to use the Swagger specification. The latter provides a lot of functionality including validation of i/o data to and from API, a really nice UI interface among others. The file swagger.yml gets it done. The file people.py creates database manually, however, this will be changes in the next step. The next step is to display the people on a web application that allow CRUD. This is done by AJAX calls from JavaScript to the people API URL endpoints. Finally some static css and js files are added for a better web interface.
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In this part I added the ability to save changes made through the REST API to a database using SQLAlchemy and showed how to serialize that data for the REST API using Marshmallow.
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The last part takes scalability into consideration. More precisely, I build more tables and relate them to each other using one-to-many relationship. This was achieved by SQLAlchemy](https://www.sqlalchemy.org/) again.
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