GenDog™

An application that utilizes a task scheduler and a message broker for fetching dog pictures.

PREREQUISITES

• virtualenv
• rabbitmq-server

Install virtualenv

sudo pip install virtualenv

Install and set up rabbitmq-server

sudo apt-get install rabbitmq-server
sudo rabbitmq-server -detached

sudo rabbitmqctl add_user myuser mypassword 
sudo rabbitmqctl add_vhost myvhost 
sudo rabbitmqctl set_permissions -p myvhost myuser ".*" ".*" ".*"

Here’s the structure of our project

.
├── app.py
├── routes.py
├── static
│   └── css
│       └── main.css
├── templates
│   └── template.html
├── test.db
├── .env
├── requirements.txt
└── url.txt

Activate virtual env and install requirements

virtualenv gen_dog
source gen_dog/bin/activate

pip install -r requirements.txt 

Create a .env file and within our .env file, we write important environmental variables

CELERY_BROKER_URL=amqp://myuser:mypassword@localhost/myvhost
CELERY_BACKEND_URL=db+sqlite:///test.db

Starting the App

Within the virtual environment, type this into your terminal

celery -A app worker -l info

Then, open a new terminal, activate the virtual env and start flask

source gen_dog/bin/activate
flask run