Flask-SQLAlchemy - It's a Flask wrapper around SQLAlchemy which is a popular Python SQL toolkit and Object Relational Mapping (ORM) wrappers for developing database operations.
Flask-Marshmallow - wrapper for Flask apps to do serialization/deserialization to display Python objects in JSON format (also used for Swagger UI).
Swagger UI - visualize and interact with your DB endpoints seemlessly. Makes backend implemenation easy and client-side consumption easy.
Connexion - built on top of Flask to handle connection requests from Swagger UI design to database endpoints.
config.py - Defines the configuration required for the Flask-App. This includes initializations for SQLAlchemy, Marshmallow and connexion objects.
models.py - Defines ORM of Table level classes and column level attributes for the components stored in DB. They are Video, Snapshot and OccupancyType.
video.py - Describes the video functions that run against Video endpoints. Like create, delete, update etc.
snapshot.py - Describes the snapshot functions that run against Snapshot endpoints. Like get_weekly_data, get_daily_data etc.
occupancytype.py - Function to display all Occupancy types available.
app.py -
- It stiches all the above functionalities together into one driver application.
- Its containes functionality for fethcing required video and snapshot information from the client.
- Coordinating with
TensorFlowandTorchservemodel servers. - Creating all the necessary DB tables if not already present and load Occupancy data from static CSV file.
The Swagger UI is driven by the swagger.yaml present in the root folder. The connexion config in config.py picks up this file using basedir during the start.
UI is available at http://<publicIPv4>:8081/api/ui/ after the application has started.
It should look something like this : (feel free to play around)
