FlaskPgSession

FlaskPgSession is a Flask extensions that implements server-side session support and stores the data in a PostgreSQL table.

It is inspired by Flask-Session but it's focused only on integration with PostgreSQL and therefore has fewer dependencies.

It is intended for people that are already using Flask with PostgreSQL and do not want to add another dependency to their app just for storing sessions (e.g. Redis).

Installation

You can install FlaskPgSession using pip

pip install flask-pg-session

Usage

Usage is pretty straightforward: just import FlaskPgSession and intialise it with your Flask app:

from flask import Flask
from flask_pg_session import FlaskPgSession

app = Flask("my-app")

# You can either pass the app as an argument to the constructor
FlaskPgSession(app)

# or initialise it separately
session = FlaskPgSession()
session.init_app(app)

Configuration

The extension can be configured via the Flask config file. The following options are available:

• SQLALCHEMY_DATABASE_URI: The URI of the PostgreSQL database to use.
• SESSION_PG_TABLE: The name of the table to store sessions in. Defaults to flask_sessions.
• SESSION_PG_SCHEMA: The name of the schema to store sessions in. Defaults to public.
• SESSION_KEY_PREFIX: The prefix to use for session IDs. Absent by default.
• SESSION_USE_SIGNER: Whether to sign session IDs. Defaults to False.
• SESSION_PERMANENT: Whether to set the permanent flag on sessions. Defaults to True.
• SESSION_AUTODELETE_EXPIRED: Whether to automatically delete expired sessions. Defaults to True.
• SESSION_PG_MAX_DB_CONN: The maximum number of database connections to use. Defaults to 10.

Contributions

Contributions are welcome! If you encounter any issues, have suggestions, or would like to contribute to FlaskPgSession, please feel free to submit a pull request or open an issue.

License

FlaskPgSession is open source and released under the MIT License.