Pacifica Dispatcher Example

This package provides an example implementation of a Pacifica Dispatcher.

Overview

This package is divided into the following source files:

• pacifica/
  • __init__.py = The namespace declaration for the parent pacifica package.
  • dispatcher_example/
    • __init__.py = The initializer for this package.
    • __main__.py = The entrypoint for this package.
    • event_handlers.py = The event handlers for this package.
    • router.py = The router for this package.

Please read the source files for more information about their content.

Installation Guide

This package is installed using the following commands:

1. python3 -m pip install -e .

Testing Guide

This package is tested using the following commands:

1. cd tests
2. python3 -m unittest example_test.py

Start-up Guide

This package is started in three stages, where each stage occurs in a separate terminal emulator session:

1. The message queue is started;
2. The worker for the task queue is started; and
3. The web server is started.

The message queue is started using the following commands:

1. docker-compose up rabbit

The worker for the task queue is started using the following commands:

1. env DATABASE_URL="sqliteext:///db.sqlite3" celery -A "pacifica.dispatcher_example.__main__:celery_app" worker -l info

The web server is started using the following commands:

1. env DATABASE_URL="sqliteext:///db.sqlite3" python3 -m "pacifica.dispatcher_example.__main__"

Note: The DATABASE_URL environment variable specifies the connection URL for the database. In this guide, the database is managed using SQLite, where the database itself is stored in the db.sqlite3 file in the root directory of this package.