--- title: Connect Astro to Postgres on Neon subtitle: Learn how to make server-side queries to Postgres from .astro files or API routes. enableTableOfContents: true updatedOn: '2026-02-04T22:32:55.752Z' --- Astro builds fast content sites, powerful web applications, dynamic server APIs, and everything in-between. This guide describes how to create a Neon Postgres database and access it from an Astro site or application. To create a Neon project and access it from an Astro site or application: ## Create a Neon project If you do not have one already, create a Neon project. Save your connection details including your password. They are required when defining connection settings. 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 an Astro project and add dependencies 1. Create an Astro project if you do not have one. For instructions, see [Getting Started](https://docs.astro.build/en/getting-started/), in the Astro documentation. 2. Add project dependencies using one of the following commands: ```shell npm install pg ``` ```shell npm install postgres ``` ```shell npm install @neondatabase/serverless ``` ## Enable on-demand rendering Astro requires an adapter to query databases at request time. Run: ```shell npx astro add node ``` This enables [on-demand rendering](https://docs.astro.build/en/guides/on-demand-rendering/) (also known as server-side rendering or SSR) so your pages can fetch fresh data on each request. This adapter is required for real-time database queries in production. Without it, your database is queried only once at build time, and production will serve static data. Development mode (`npm run dev`) rebuilds pages automatically and does not require the adapter. ## Store your Neon credentials Add a `.env` file to your project directory and add your Neon connection string to it. You can find the connection string for your database by clicking the **Connect** button on your **Project Dashboard** to open the **Connect to your database** modal. For more information, see [Connect from any application](/docs/connect/connect-from-any-app). ```shell shouldWrap DATABASE_URL="postgresql://:@.neon.tech:/?sslmode=require&channel_binding=require" ``` ## Create a database utility Create a reusable database client that you can import throughout your application. This approach centralizes your database configuration and follows best practices for code organization. Create a new file at `src/lib/neon.ts` (or `src/lib/neon.js`) with the following code: ```typescript import { Pool } from 'pg'; export const pool = new Pool({ connectionString: import.meta.env.DATABASE_URL, ssl: true }); ``` ```typescript import postgres from 'postgres'; export const sql = postgres(import.meta.env.DATABASE_URL, { ssl: 'require' }); ``` ```typescript import { neon } from '@neondatabase/serverless'; export const sql = neon(import.meta.env.DATABASE_URL); ``` ## Configure the Postgres client There are multiple ways to make server side requests with Astro. See below for two of those options: **Page Components (.astro files)** and **Server Endpoints (API Routes)**. ### Page Components (.astro files) In your `.astro` page components (e.g., `src/pages/index.astro`), you can query the database in the frontmatter section (between the `---` fences). Import the database client from your utility file: ```astro --- import { pool } from '../lib/neon'; const client = await pool.connect(); let data = null; try { const response = await client.query('SELECT version()'); data = response.rows[0].version; } finally { client.release(); } --- {data} ``` ```astro --- import { sql } from '../lib/neon'; const response = await sql`SELECT version()`; const data = response[0].version; --- {data} ``` ```astro --- import { sql } from '../lib/neon'; const response = await sql`SELECT version()`; const data = response[0].version; --- {data} ``` You can also initialize the database connection directly in each `.astro` file, but using a shared utility file is recommended for maintainability and code organization. #### Run the app When you run `npm run dev` you can expect to see something like the following when you visit `localhost:4321`: ```shell shouldWrap PostgreSQL 17.7 on aarch64-unknown-linux-gnu, compiled by gcc (Debian 12.2.0-14+deb12u1) 12.2.0, 64-bit ``` ### Server Endpoints (API Routes) In your server endpoints (API Routes) in Astro application, import the database client from your utility file: ```javascript // File: src/pages/api/index.ts import { pool } from '../../lib/neon'; export async function GET() { const client = await pool.connect(); let data = {}; try { const { rows } = await client.query('SELECT version()'); data = rows[0]; } finally { client.release(); } return new Response(JSON.stringify(data), { headers: { 'Content-Type': 'application/json' } }); } ``` ```javascript // File: src/pages/api/index.ts import { sql } from '../../lib/neon'; export async function GET() { const response = await sql`SELECT version()`; return new Response(JSON.stringify(response[0]), { headers: { 'Content-Type': 'application/json' }, }); } ``` ```javascript // File: src/pages/api/index.ts import { sql } from '../../lib/neon'; export async function GET() { const response = await sql`SELECT version()`; return new Response(JSON.stringify(response[0]), { headers: { 'Content-Type': 'application/json' }, }); } ``` #### Run the app When you run `npm run dev` you can expect to see something like the following when you visit the `localhost:4321/api` route: ```shell shouldWrap { version: 'PostgreSQL 17.7 on aarch64-unknown-linux-gnu, compiled by gcc (Debian 12.2.0-14+deb12u1) 12.2.0, 64-bit' } ``` ## Source code You can find the source code for the applications described in this guide on GitHub. Get started with Astro and Neon Get started with Astro API Routes and Neon