Database

Postgres.js

Connecting with Postgres.js

Postgres.js is a full-featured Postgres client for Node.js and Deno.

1

Install

Install Postgres.js and related dependencies.

npm i postgres
2

Connect

Create a db.js file with the connection details.

To get your connection details, go to your Database Settings. 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.

// db.js
import postgres from 'postgres'

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

export default sql
3

Execute commands

Use the connection to execute commands.

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
}