--- title: Azure Database description: Connect Hyperdrive to a Azure Database for PostgreSQL instance. image: https://developers.cloudflare.com/dev-products-preview.png --- > 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. [Skip to content](#%5Ftop) # Azure Database **Last reviewed:** over 1 year ago Connect Hyperdrive to an Azure Database for PostgreSQL instance. This example shows you how to connect Hyperdrive to an Azure Database for PostgreSQL instance. ## 1\. Allow Hyperdrive access To allow Hyperdrive to connect to your database, you will need to ensure that Hyperdrive has valid 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](https://developers.cloudflare.com/hyperdrive/configuration/firewall-and-networking-configuration/). Alternatively, you can connect to your databases over in your private network using [Cloudflare Tunnels](https://developers.cloudflare.com/hyperdrive/configuration/connect-to-private-database/). ### Azure Portal #### Public access networking To connect to your Azure Database for PostgreSQL instance using public Internet connectivity: 1. In the [Azure Portal ↗](https://portal.azure.com/), select the instance you want Hyperdrive to connect to. 2. Expand **Settings** \> **Networking** \> ensure **Public access** is enabled > in **Firewall rules** add `0.0.0.0` as **Start IP address** and `255.255.255.255` as **End IP address**. 3. Select **Save** to persist your changes. 4. Select **Overview** from the sidebar and note down the **Server name** of your instance. With the username, password, server name, and database name (default: `postgres`), you can now create a Hyperdrive database configuration. #### Private access networking To connect to a private Azure Database for PostgreSQL instance, refer to [Connect to a private database using Tunnel](https://developers.cloudflare.com/hyperdrive/configuration/connect-to-private-database/). ## 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. * [ Dashboard ](#tab-panel-6422) * [ Wrangler CLI ](#tab-panel-6423) To create a Hyperdrive configuration with the Cloudflare dashboard: 1. In the Cloudflare dashboard, go to the **Hyperdrive** page. [ Go to **Hyperdrive** ](https://dash.cloudflare.com/?to=/:account/workers/hyperdrive) 2. Select **Create Configuration**. 3. Fill out the form, including the connection string. 4. Select **Create**. To create a Hyperdrive configuration with the [Wrangler CLI](https://developers.cloudflare.com/workers/wrangler/install-and-update/): 1. Open your terminal and run the following command. Replace `` 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: Terminal window ``` npx wrangler hyperdrive create --connection-string="postgres://user:password@HOSTNAME_OR_IP_ADDRESS:PORT/database_name" ``` 2. This command outputs a binding for the [Wrangler configuration file](https://developers.cloudflare.com/workers/wrangler/configuration/): * [ wrangler.jsonc ](#tab-panel-6420) * [ wrangler.toml ](#tab-panel-6421) JSONC ``` { "$schema": "./node_modules/wrangler/config-schema.json", "name": "hyperdrive-example", "main": "src/index.ts", // Set this to today's date "compatibility_date": "2026-05-08", "compatibility_flags": [ "nodejs_compat" ], // Pasted from the output of `wrangler hyperdrive create --connection-string=[...]` above. "hyperdrive": [ { "binding": "HYPERDRIVE", "id": "" } ] } ``` TOML ``` "$schema" = "./node_modules/wrangler/config-schema.json" name = "hyperdrive-example" main = "src/index.ts" # Set this to today's date compatibility_date = "2026-05-08" 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](https://developers.cloudflare.com/hyperdrive/observability/troubleshooting/) to debug possible causes. ## 3\. Use Hyperdrive from your Worker Install the `node-postgres` driver: npm yarn pnpm bun ``` 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: npm yarn pnpm bun ``` 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: * [ wrangler.jsonc ](#tab-panel-6424) * [ wrangler.toml ](#tab-panel-6425) JSONC ``` { // required for database drivers to function "compatibility_flags": [ "nodejs_compat" ], // Set this to today's date "compatibility_date": "2026-05-08", "hyperdrive": [ { "binding": "HYPERDRIVE", "id": "" } ] } ``` TOML ``` compatibility_flags = [ "nodejs_compat" ] # Set this to today's date compatibility_date = "2026-05-08" [[hyperdrive]] binding = "HYPERDRIVE" id = "" ``` Create a new `Client` instance and pass the Hyperdrive `connectionString`: TypeScript ``` // filepath: src/index.ts import { Client } from "pg"; export default { async fetch( request: Request, env: Env, ctx: ExecutionContext, ): Promise { // 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](https://developers.cloudflare.com/hyperdrive/concepts/how-hyperdrive-works/). * Refer to the [troubleshooting guide](https://developers.cloudflare.com/hyperdrive/observability/troubleshooting/) to debug common issues. * Understand more about other [storage options](https://developers.cloudflare.com/workers/platform/storage-options/) available to Cloudflare Workers. ```json {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/hyperdrive/","name":"Hyperdrive"}},{"@type":"ListItem","position":3,"item":{"@id":"/hyperdrive/examples/","name":"Examples"}},{"@type":"ListItem","position":4,"item":{"@id":"/hyperdrive/examples/connect-to-postgres/","name":"Connect to PostgreSQL"}},{"@type":"ListItem","position":5,"item":{"@id":"/hyperdrive/examples/connect-to-postgres/postgres-database-providers/","name":"Database Providers"}},{"@type":"ListItem","position":6,"item":{"@id":"/hyperdrive/examples/connect-to-postgres/postgres-database-providers/azure/","name":"Azure Database"}}]} ```