Google Cloud SQL (2)

Google Cloud SQL (2)

Connect Hyperdrive to a Google Cloud SQL for Postgres database instance.

Last updated Apr 21, 2026 This example shows you how to connect Hyperdrive to a Google Cloud SQL Postgres database instance.

1. Allow Hyperdrive access

To allow Hyperdrive to connect to your database, you will need to ensure that Hyperdrive has valid user credentials and network access.

Note

To allow Hyperdrive to connect to your database, you must allow Cloudflare IPs to be able to access your database. You can either allow-list all IP address ranges (0.0.0.0 - 255.255.255.255) or restrict your IP access control list to the IP ranges used by Hyperdrive.

Alternatively, you can connect to your databases over in your private network using Cloudflare Tunnels.

Cloud Console

When creating the instance or when editing an existing instance in the Google Cloud Console ↗︎:

To allow Hyperdrive to reach your instance:

In the Cloud Console ↗︎, select the instance you want Hyperdrive to connect to.
Expand Connections > Networking > ensure Public IP is enabled > Add a Network and input 0.0.0.0/0.
Select Done > Save to persist your changes.
Select Overview from the sidebar and note down the Public IP address of your instance.

To create a user for Hyperdrive to connect as:

Select Users in the sidebar.
Select Add User Account > select Built-in authentication.
Provide a name (for example, hyperdrive-user) > select Generate to generate a password.
Copy this password to your clipboard before selecting Add to create the user.

With the username, password, public IP address and (optional) database name (default: postgres), you can now create a Hyperdrive database configuration.

gcloud CLI

The gcloud CLI ↗︎ allows you to create a new user and enable Hyperdrive to connect to your database.

Use gcloud sql to create a new user (for example, hyperdrive-user) with a strong password:

gcloud sql users create hyperdrive-user --instance=YOUR_INSTANCE_NAME --password=SUFFICIENTLY_LONG_PASSWORD

Run the following command to enable Internet access ↗︎ to your database instance:

# If you have any existing authorized networks, ensure you provide those as a comma separated list.
# The gcloud CLI will replace any existing authorized networks with the list you provide here.
gcloud sql instances patch YOUR_INSTANCE_NAME --authorized-networks="0.0.0.0/0"

Refer to Google Cloud's documentation ↗︎ for additional configuration options.

2. Create a database configuration

To configure Hyperdrive, you will need:

The IP address (or hostname) and port of your database.
The database username (for example, hyperdrive-demo) you configured in a previous step.
The password associated with that username.
The name of the database you want Hyperdrive to connect to. For example, postgres.

Hyperdrive accepts the combination of these parameters in the common connection string format used by database drivers:

postgres://USERNAME:PASSWORD@HOSTNAME_OR_IP_ADDRESS:PORT/database_name

Most database providers will provide a connection string you can directly copy-and-paste directly into Hyperdrive.

To create a Hyperdrive configuration with the Cloudflare dashboard:

In the Cloudflare dashboard, go to the Hyperdrive page. Go to Hyperdrive ↗
Select Create Configuration.
Fill out the form, including the connection string.
Select Create.

To create a Hyperdrive configuration with the Wrangler CLI:

Open your terminal and run the following command. Replace <NAME_OF_HYPERDRIVE_CONFIG> with a name for your Hyperdrive configuration and paste the connection string provided from your database host, or replace user, password, HOSTNAME_OR_IP_ADDRESS, port, and database_name placeholders with those specific to your database:

sh npx wrangler hyperdrive create <NAME_OF_HYPERDRIVE_CONFIG> --connection-string="postgres://user:password@HOSTNAME_OR_IP_ADDRESS:PORT/database_name"

This command outputs a binding for the Wrangler configuration file:

jsonc { "$schema": "./node_modules/wrangler/config-schema.json", "name": "hyperdrive-example", "main": "src/index.ts", "upload_source_maps": true, // Set this to today's date "compatibility_date": "2026-10-27", "compatibility_flags": [ "nodejs_compat" ], // Pasted from the output of `wrangler hyperdrive create <NAME_OF_HYPERDRIVE_CONFIG> --connection-string=[...]` above. "hyperdrive": [ { "binding": "HYPERDRIVE", "id": "<ID OF THE CREATED HYPERDRIVE CONFIGURATION>" } ] }

```toml "$schema" = "./node_modules/wrangler/config-schema.json" name = "hyperdrive-example" main = "src/index.ts" upload_source_maps = true # Set this to today's date compatibility_date = "2026-10-27" compatibility_flags = [ "nodejs_compat" ]

[[hyperdrive]] binding = "HYPERDRIVE" id = "" ```

Note

Hyperdrive will attempt to connect to your database with the provided credentials to verify they are correct before creating a configuration. If you encounter an error when attempting to connect, refer to Hyperdrive's troubleshooting documentation to debug possible causes.

3. Use Hyperdrive from your Worker

Install the node-postgres driver:

npmyarnpnpmbun

npm i pg@>8.16.3

yarn add pg@>8.16.3

pnpm add pg@>8.16.3

bun add pg@>8.16.3

Note

The minimum version of node-postgres required for Hyperdrive is 8.16.3.

If using TypeScript, install the types package:

npmyarnpnpmbun

npm i -D @types/pg

yarn add -D @types/pg

pnpm add -D @types/pg

bun add -d @types/pg

Add the required Node.js compatibility flags and Hyperdrive binding to your wrangler.jsonc file:

{
    // required for database drivers to function
    "compatibility_flags": [
        "nodejs_compat"
    ],
    // Set this to today's date
    "compatibility_date": "2026-10-27",
    "hyperdrive": [
        {
            "binding": "HYPERDRIVE",
            "id": "<your-hyperdrive-id-here>"
        }
    ]
}

compatibility_flags = [ "nodejs_compat" ]
# Set this to today's date
compatibility_date = "2026-10-27"

[[hyperdrive]]
binding = "HYPERDRIVE"
id = "<your-hyperdrive-id-here>"

Create a new Client instance and pass the Hyperdrive connectionString:

// filepath: src/index.ts
import { Client } from "pg";

export default {
    async fetch(
        request: Request,
        env: Env,
        ctx: ExecutionContext,
    ): Promise<Response> {
        // Create a new client instance for each request. Hyperdrive maintains the
        // underlying database connection pool, so creating a new client is fast.
        const client = new Client({
            connectionString: env.HYPERDRIVE.connectionString,
        });

        try {
            // Connect to the database
            await client.connect();

            // Perform a simple query
            const result = await client.query("SELECT * FROM pg_tables");

            return Response.json({
                success: true,
                result: result.rows,
            });
        } catch (error: any) {
            console.error("Database error:", error.message);

            return new Response("Internal error occurred", { status: 500 });
        }
    },
};

Next steps

Learn more about How Hyperdrive Works.
Refer to the troubleshooting guide to debug common issues.
Understand more about other storage options available to Cloudflare Workers.

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description: Connect Hyperdrive to a Materialize streaming database. title: Materialize image: https://developers.cloudflare.com/hyperdrive/examples/connect-to-postgres/postgres-database-providers/materialize/og.png?v=ad297df67eb4e920

Documentation Index
Fetch the complete documentation index at: https://developers.cloudflare.com/hyperdrive/llms.txt
Use this file to discover all available pages before exploring further.

Google Cloud SQL (2)

Google Cloud SQL (2)

1. Allow Hyperdrive access

Cloud Console

gcloud CLI

2. Create a database configuration

3. Use Hyperdrive from your Worker

Next steps

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