This project simulate a virtual wallet to use Django atomic transactions.

Staff users could do almost any type of action while regular users only could do things with their own wallets.

Only superusers could change wallet balance.

• docker engine >= 19.03.
• docker-compose >= 1.27.

• Ubuntu 18.04 (Bionic).
• docker engine == 20.10.9.
• docker-compose == 1.28.4.

Graph model image

If you can run a Makefile command, you can use a "fast init" with: make loaddata.

Build docker image:

make build

Apply django migrations:

make migrate

Run django runserver command:

make dev

Run uvicorn server:

make uvicorn

Apply initial_data.json fixture. This action will erase all previous data:

make loaddata

make tests

docker-compose -p django_atomic_transactions -f environment/docker-compose.yml build

Apply django migrations:

docker-compose -p django_atomic_transactions -f environment/docker-compose.yml run --rm --service-ports web migrate

• Runserver

Run django runserver command:

docker-compose -p django_atomic_transactions -f environment/docker-compose.yml run --rm --service-ports web dev

• Uvicorn

Run uvicorn server:

docker-compose -p django_atomic_transactions -f environment/docker-compose.yml run --rm --service-ports web uvicorn

Apply initial_data.json fixture. This action will erase all previous data:

docker-compose -p django_atomic_transactions -f environment/docker-compose.yml run --rm --service-ports web loaddata

docker-compose -p django_atomic_transactions -f environment/docker-compose.yml run --rm --service-ports web python manage.py test --failfast api

Sometimes when try to migrate it gets an error message like that. The IP is an example:

Is the server running on host "db" (<192.168.1.25>) and accepting
	TCP/IP connections on port 5432?

When web is up and running and db is not ready yet, we could have this type of error. In this situation try to execute it again.

• Auto create a transaction error on atomic IntegrityError.
• Use amount float instead of decimal because of performance. We only use two decimals and 5 digits, precision should not be a problem with float. Example article.
• Add flake8 to testing stage.
• Create a view using django templates and css grid to show GetNumClientAccounts.
• Create a business flow:
  • Create business account.
  • Create business wallet.
  • Create business transactions.
  • Allow business to manage their our client accounts.
• Enable django admin login with created users.
• Enable django password validations on user creation.
• Finish Dockerfile production stage.
• Improve pg_ready in container healthcheck.

...

Are you here yet? OK, nice one. I should invite you to a cup of coffee. Just give me your wallet username and password to get in touch hehehe (yep, a simple joke).