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.

1npm i postgres

2

Connect

Create a db.js file with the connection details.

To get your connection details, go to the Connect panel. Choose Transaction pooler if you're on a platform with transient connections, such as a serverless function, and Session pooler if you have a long-lived connection. Copy the URI and save it as the environment variable DATABASE_URL.

1// db.js2import postgres from 'postgres'34const connectionString = process.env.DATABASE_URL5const sql = postgres(connectionString)67export default sql

3

Execute commands

Use the connection to execute commands.

1import sql from './db.js'23async function getUsersOver(age) {4  const users = await sql`5    select name, age6    from users7    where age > ${ age }8  `9  // users = Result [{ name: "Walter", age: 80 }, { name: 'Murray', age: 68 }, ...]10  return users11}