Flask-Cassandra

Flask-Cassandra provides an application-level connection to an Apache Cassandra database. This connection can be used to interact with a Cassandra cluster.

Flask-Cassandra requires both Flask and the Datastax Python Driver for Apache Cassandra to be installed. This driver will be installed automatically when installing via pip or when running setup.py install.

Installation

The easiest way to use the extension is to install it from PyPI using pip:

$ pip install flask-cassandra

You can also install the extension directly from source.

$ python setup.py install

Use

This is an example flask app that reads from a Cassandra cluster.

from flask import Flask
from flask_cassandra import CassandraCluster

app = Flask(__name__)
cassandra = CassandraCluster()

app.config['CASSANDRA_NODES'] = ['cassandra-c1.terbiumlabs.com']  # can be a string or list of nodes

@app.route("/cassandra_test")
def cassandra_test():
    session = cassandra.connect()
    session.set_keyspace("monty_python")
    cql = "SELECT * FROM sketches LIMIT 1"
    r = session.execute(cql)
    return str(r[0])

if __name__ == '__main__':
    app.run()

Contributions

If you would like to extend the functionality of the extension, pull requests are most welcome.