Connect with the Java client

Learn how to connect to a Serverless (Vector) database with the astra-db-java client.


Install the Java client

Use Maven or Gradle to install the Java client.

  • Maven

  • Gradle

To install the Java client with Maven:

  1. Install Java 11+ and Maven 3.9+.

  2. Create a pom.xml file in the root of your project.

    <project xmlns=""
      <!-- The Java client -->

To install the Java client with Gradle:

  1. Install Java 11+ and Gradle.

  2. Create a build.gradle file in the root of your project.

    plugins {
        id 'java'
        id 'application'
    repositories {
    dependencies {
        implementation 'com.datastax.astra:astra-db-java:1.0.0'
    application {
        mainClassName = 'com.example.Quickstart'

Connect to a vector-enabled Astra DB Serverless database

Create a file named in the ./src/main/java/com/example/ directory of your project.

import com.datastax.astra.client.Collection;
import com.datastax.astra.client.DataAPIClient;
import com.datastax.astra.client.Database;
import com.datastax.astra.client.model.Document;
import com.datastax.astra.client.model.FindIterable;
import com.datastax.astra.client.model.SimilarityMetric;

public class Quickstart {

  public static void main(String[] args) {
    // Loading Arguments
    String astraToken = System.getenv("ASTRA_DB_APPLICATION_TOKEN");
    String astraApiEndpoint = System.getenv("ASTRA_DB_API_ENDPOINT");

    // Initialize the client
    DataAPIClient client = new DataAPIClient(astraToken);
    System.out.println("Connected to AstraDB");

    Database db = client.getDatabase(astraApiEndpoint);
    System.out.println("Connected to Database.");

Next steps

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