supabase/apps/docs/content/guides/database/postgres-js.mdx

---
id: 'postgres-js'
title: 'Postgres.js'
description: 'Postgres.js Quickstart'
breadcrumb: 'ORM Quickstarts'
hideToc: true
---

### Connecting with Postgres.js

[Postgres.js](https://github.com/porsager/postgres) is a full-featured Postgres client for Node.js and Deno.

<StepHikeCompact>

  <StepHikeCompact.Step step={1}>

    <StepHikeCompact.Details title="Install">

    Install Postgres.js and related dependencies.

    </StepHikeCompact.Details>

    <StepHikeCompact.Code>

     ```shell
     npm i postgres
     ```

    </StepHikeCompact.Code>

  </StepHikeCompact.Step>

  <StepHikeCompact.Step step={2}>

    <StepHikeCompact.Details title="Connect">

    Create a `db.js` file with the connection details.

    To get your connection details, go to your [`Database Settings`](https://supabase.com/dashboard/project/_/settings/database). Make sure `Use connection pooling` is enabled. Choose `Transaction Mode` if you're on a platform with transient connections, such as a serverless function, and `Session Mode` if you have a long-lived connection. Copy the URI and save it as the environment variable `DATABASE_URL`.

    </StepHikeCompact.Details>

    <StepHikeCompact.Code>

    ```ts
    // db.js
    import postgres from 'postgres'

    const connectionString = process.env.DATABASE_URL
    const sql = postgres(connectionString)

    export default sql
    ```

    </StepHikeCompact.Code>

  </StepHikeCompact.Step>

  <StepHikeCompact.Step step={3}>

    <StepHikeCompact.Details title="Execute commands">

    Use the connection to execute commands.

    </StepHikeCompact.Details>

    <StepHikeCompact.Code>

    ```ts
    import sql from './db.js'

    async function getUsersOver(age) {
      const users = await sql`
        select name, age
        from users
        where age > ${ age }
      `
      // users = Result [{ name: "Walter", age: 80 }, { name: 'Murray', age: 68 }, ...]
      return users
    }
    ```

    </StepHikeCompact.Code>

  </StepHikeCompact.Step>

</StepHikeCompact>