Web

Dependencies

• Docker.
• Docker Compose.
• Poetry for Python package and environment management.

Config

• Create ".env" file and add environment variables to it:

# base
SECRET_KEY=some-secret-key
PROJECT_NAME='Some Project Name'
SERVER_HOST=http://0.0.0.0:8881

# databases
POSTGRES_USER=postgres
POSTGRES_PASSWORD=postgres
POSTGRES_HOST=postgres
POSTGRES_DB=postgres
POSTGRES_TEST_DB=test
PGDATA=/var/lib/postgresql/data/pgdata

# SMTP
SMTP_USER=some-email
SMTP_PASSWORD=some-password

# Auth
FIRST_SUPERUSER_USERNAME=[email protected]
FIRST_SUPERUSER_PASSWORD=password
FIRST_SUPERUSER_FIRST_NAME='first name'
FIRST_SUPERUSER_LAST_NAME='last name'

• To generate 32 byte SECRET_KEY:

$ openssl rand -hex 32

• Other project settings (e.g. SMPT) you can see in "app/core/config.py"

Development

• Run server with all dependencies:

$ docker-compose up --build

• Add pre-commit hook

$ pre-commit install

Tests

Testing is done with pytest, tests are placed in the "tests" directory

For testing, you should go inside the container and run the command pytest .

$ docker exec -it <FastAPI container ID> bash
$ pytest tests --asyncio-mode=auto

Project structure

-> *app*
   -> *api* — layer with logic for processing requests via api
   -> *core* — global things for the project, like settings (`config.py`)
   -> *db* — database and session initialization
   -> *models* — models in SQLAlchemy terminology (not to be confused with *schemas* in pydantic and business models)
   -> *schemas* — schemes for validating/serializing request/response objects (they are also models in pydantic terminology)
   -> *services* — service layer, all business logic is placed here.
   -> *utils* — utility logic.
-> *tests* — root for tests
-> *.env.template* — file to list all environment variables used inside the service

Migrations

• After creating the model in app/models, you need to import it in app/db/base.py (in order to make it visible to alembic)
• Make migrations (run inside container)

$ alembic -n postgres revision --autogenerate -m "add column last_name to User model"

• Run migrations

$ alembic -n postgres upgrade head

• Postgres

$ alembic -n postgres revision --autogenerate -m "text"
$ alembic -n postgres upgrade head
$ alembic -n postgres downgrade -1