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> Full Neon documentation index: https://neon.com/docs/llms.txt

# Connect Quarkus (JDBC) to Neon

Learn how to connect to Neon from Quarkus using JDBC

[Quarkus](https://quarkus.io/) is a Java framework optimized for cloud environments. This guide shows how to connect to Neon from a Quarkus project using the PostgreSQL JDBC driver.

To connect to Neon from a Quarkus application using the Postgres JDBC Driver:

## Create a Neon project

If you do not have one already, create a Neon project.

1. Navigate to the [Projects](https://console.neon.tech/app/projects) page in the Neon Console.
2. Click **New Project**.
3. Specify your project settings and click **Create Project**.

## Create a Quarkus project

Create a Quarkus project using the [Quarkus CLI](https://quarkus.io/guides/cli-tooling):

```shell
quarkus create app neon-with-quarkus-jdbc \
--name neon-with-quarkus-jdbc \
--package-name com.neon.tech \
--extensions jdbc-postgresql,quarkus-agroal,resteasy-reactive
```

You now have a Quarkus project in a folder named `neon-with-quarkus-jdbc` with the PostgreSQL JDBC driver, Agroal datasource implementation, and RESTEasy Reactive extensions installed.

## Configure a PostgreSQL data source

Create a `.env` file in the root of your Quarkus project directory. Configure a JDBC data source using the components of your Neon database connection string and specifying the database kind as shown:

```shell
QUARKUS_DATASOURCE_DB_KIND=postgresql
QUARKUS_DATASOURCE_USERNAME=[user]
QUARKUS_DATASOURCE_PASSWORD=[password]
QUARKUS_DATASOURCE_JDBC_URL=jdbc:postgresql://[neon_hostname]/[dbname]?sslmode=require&channelBinding=require
```

**Note:** You can find the connection details for your database by clicking the **Connect** button on your **Project Dashboard**. For more information, see [Connect from any application](https://neon.com/docs/connect/connect-from-any-app).

## Use the PostgreSQL JDBC Driver

Create a `PostgresResource.java` file in the same directory as the `GreetingResource.java` that was generated by Quarkus during project creation. Paste the following content into the `PostgresResource.java` file:

```java
package com.neon.tech;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import javax.sql.DataSource;
import jakarta.inject.Inject;
import jakarta.ws.rs.GET;
import jakarta.ws.rs.Path;
import jakarta.ws.rs.Produces;
import jakarta.ws.rs.core.MediaType;

@Path("/postgres")
public class PostgresResource {
    @Inject
    DataSource dataSource;

    @GET
    @Path("/version")
    @Produces(MediaType.TEXT_PLAIN)
    public String getVersion() {
        try (Connection connection = dataSource.getConnection();
                Statement statement = connection.createStatement()) {

            ResultSet resultSet = statement.executeQuery("SELECT version()");

            if (resultSet.next()) {
                return resultSet.getString(1);
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return null;
    }
}
```

This code defines a HTTP endpoint that will query the database version and return it as a response to incoming requests.

## Run the application

Start the application in development mode using the Quarkus CLI from the root of the project directory:

```shell
quarkus dev
```

Visit [localhost:8080/postgres/version](http://localhost:8080/postgres/version) in your web browser. Your Neon database's Postgres version will be returned. For example:

```
PostgreSQL 17.5 (6bc9ef8) on x86_64-pc-linux-gnu, compiled by gcc (Debian 12.2.0-14+deb12u1) 12.2.0, 64-bit
```

---

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