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