Connect the Node.js driver to your database
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DataStax recommends using the TypeScript client with HCD databases. Use the Node.js driver only if you are working with an existing application that previously used a CQL-based driver or if you plan to explicitly use CQL. |
Initialize the Node.js driver to connect to your database.
Prerequisite
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You have installed a cluster.
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You have created a keyspace.
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You have installed NodeJS.
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HCD APIs use the term keyspace to refer to both namespaces and keyspaces. |
Connect
This code configures the Node.js driver with authentication details, then establishes a connection to the database through an asynchronous run function.
const cassandra = require('cassandra-driver');
const authProvider = new cassandra.auth.PlainTextAuthProvider('token', process.env['DB_APPLICATION_TOKEN']);
const client = new cassandra.Client({ cloud, authProvider });
async function run() {
await client.connect();
// ...
}See the Node.js quickstart for details on how to install the package, connect to a HCD database, create a table and vector-compatible SAI (Storage-Attached Index), load data, and perform a similarity search.
