Setup

1. Create db_password.txt with desired PostgreSQL password
2. docker compose up takes about 2.5 minutes to build actix-rest. Open http://localhost:8000/
3. For the local debugging run in a separate terminal:

cd actix-rest
DB_HOST=localhost  DB_PASS_PATH=../db_password.txt cargo run

Local API is at http://localhost:8080/

4. Decrement balance with curl -v -d 'fry@example.com' http://localhost:8080/thanks && echo
5. docker run -it --rm --network balance_default postgres psql -h db -U postgres

Tasks

• Liquibase users with balance
• Postgres Docker Compose with Liquibase
• Actix Web API
• Transaction Concurrency Test