Voice AI project

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Recommended:

• python (version 3.12)
• Poetry (version 1.7.1)

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INSTALLATIONS

use poetry for package management: install needed dependencies from project.toml using

# activate venv that automatically created and used poetry
poetry shell

# install dependencies
poetry add

At the root directory create .env and past this:

# Development
DB_HOST=localhost
DB_PORT=5432
DB_USER=postgres
DB_PASS=postgres
DB_NAME=dev_app


# Production
# DB_HOST=localhost
# DB_PORT=5432
# DB_USER=postgres
# DB_PASS=postgres
# DB_NAME=prod_app


SECRET_KEY = "KlgH6AzYDeZeGwD288to79I3vTHT8wp7"
ALGORITHM = "HS256"

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MIGRATIONS use alembic for db migrations: in terminal run:

alembic init

after that creates file alembic.ini and directory: alembic inside alembic folder has env.py and copy/past this:

from logging.config import fileConfig

from alembic import context
from sqlalchemy import engine_from_config
from sqlalchemy import pool

from app.config import settings

from app.db.models import *  # noqa
from app.db.database import Base

config = context.config

if config.config_file_name is not None:
    fileConfig(config.config_file_name)

config.set_main_option("sqlalchemy.url", settings.DATABASE_URL)

target_metadata = Base.metadata


def run_migrations_offline() -> None:
    url = config.get_main_option("sqlalchemy.url")
    context.configure(
        url=url,
        target_metadata=target_metadata,
        literal_binds=True,
        dialect_opts={"paramstyle": "named"},
    )

    with context.begin_transaction():
        context.run_migrations()


def run_migrations_online() -> None:
    connectable = engine_from_config(
        config.get_section(config.config_ini_section, {}),
        prefix="sqlalchemy.",
        poolclass=pool.NullPool,
    )

    with connectable.connect() as connection:
        context.configure(
            connection=connection, target_metadata=target_metadata
        )

        with context.begin_transaction():
            context.run_migrations()


if context.is_offline_mode():
    run_migrations_offline()
else:
    run_migrations_online()

then run this: this generates a migration, see alembic/versions/ directiory, inside that creates migration named like: datetime()_initial_db.py

NOTE: inside that has upgrade and downgrade functions. that functions must not be empty or pass.

alembic revision --autogenerate -m "initial db"
alembic upgrade head

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Project server can run with:

• hypercorn with trio
• hypercorn with asyncio
• uvicorn

Recommended hypercorn with trio run project:

python runserver.py