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This is the implementation of the DataStax data handler for MindsDB. DataStax Astra DB is a cloud database-as-a-service based on Apache Cassandra. DataStax also offers DataStax Enterprise (DSE), an on-premises database built on Apache Cassandra, and Astra Streaming, a messaging and event streaming cloud service based on Apache Pulsar.

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Prerequisites

Before proceeding, ensure the following prerequisites are met:
  1. Install MindsDB locally via Docker or use MindsDB Cloud.
  2. To connect DataStax to MindsDB, install the required dependencies following this instruction.
  3. Install or ensure access to DataStax.

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Implementation

DataStax Astra DB is API-compatible with Apache Cassandra and ScyllaDB. Therefore, its implementation extends the ScyllaDB handler and is using the scylla-driver Python library. The required arguments to establish a connection are as follows:
  • user is the user to authenticate.
  • password is the password to authenticate the user.
  • secure_connect_bundle is the path to the secure_connect_bundle zip file.

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Usage

In order to make use of this handler and connect to the Astra DB database in MindsDB, the following syntax can be used: 
CREATE DATABASE astra_connection
WITH
    engine = "astra",
    parameters = {
        "user": "user",
        "password": "pass",
        "secure_connect_bundle": "/home/Downloads/file.zip"
    };
or, reference the bundle from Datastax s3 as: 
CREATE DATABASE astra_connection
WITH ENGINE = "astra",
PARAMETERS = {
    "user": "user",
    "password": "pass",
    "secure_connect_bundle": "https://datastax-cluster-config-prod.s3.us-east-2.amazonaws.com/32312-b9eb-4e09-a641-213eaesa12-1/secure-connect-demo.zip?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AK..."
}
You can use this established connection to query your table as follows: 
SELECT *
FROM astra_connection.keystore.example_table
LIMIT 10;
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