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This repository has been archived by the owner on May 7, 2024. It is now read-only.

The project is created in order to practice using design patterns in backend development.

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Open-election-system/open-election-backend

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Open election system

The Aim of the project

The project is created in order to practice using design patterns in backend development.

Project setup

Adding secret keys

In the root directory, create a file env_variables.yaml and paste the following content to it:

env_variables:
  FIREBASE_PROJECT_ID: 'project_id'
  GAE_USE_SOCKETS_HTTPLIB : 'true'

In the root directory, create a file key.json and paste Firebase key to it.

Running a project

ubuntu

virtualenv -p python3 .venv
source .venv/bin/activate
python3 setup.py develop
gunicorn --bind 0.0.0.0:8080 wsgi

windows

python3 -m venv venv
\venv\Scripts\activate.bat
python3 setup.py develop
python3 wsgi.py

Explore Swagger

Local version: https://0.0.0.0:8080/api/1/

Development version: https://lyrical-amulet-276713.ew.r.appspot.com/api/1/

Project devlopment

Adding changes:

If you add a new package, you should update requirements.txt:

pip freeze > requirements.txt

All changes in the dev branch, automatically deploy to Google App Engine.

Project structure

Patterns

Architecture-level patterns:

  • Model-View-Presenter architecture
  • Inversion of Control with IoC Container and Dependency Injection

Business logic patterns

  • Facade
  • Builder
  • IoC and DI
  • Decorator
  • Serializer
  • Application factory

Diagrams

Use case diagram

Use case diagram

Class diagram

Class diagram

Design pattern class diagram

Design pattern class diagram

Technologies

The following technologies were used:

Backend:

  • python3
  • flask

Database:

  • Firestore

Development

  • Google cloud platform, App Engine

About

The project is created in order to practice using design patterns in backend development.

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