Arctic v2 documentation

See v1.arcticjs.dev for the v1 docs.

Arctic is a collection of OAuth 2.0 clients for popular providers. It only supports the authorization code grant type and intended to be used server-side. Built on top of the Fetch API, it's light weight, fully-typed, and runtime-agnostic.

import { GitHub, generateState } from "arctic";

const github = new GitHub(clientId, clientSecret);

const state = generateState();
const scopes = ["user:email"];
const authorizationURL = github.createAuthorizationURL(state, scopes);

// ...

const tokens = await github.validateAuthorizationCode(code);
const accessToken = tokens.accessToken();

Arctic only supports providers that follow the OAuth 2.0 spec (including PKCE and token revocation).

Installation

npm install arctic

Polyfill

If you're using Node.js 18, you'll need to polyfill the Web Crypto API. This is not required in Node.js 20, Bun, Deno, and Cloudflare Workers.

import { webcrypto } from "node:crypto";

globalThis.crypto = webcrypto as Crypto;

Semver

Arctic does not strictly follow semantic versioning. While we aim to only introduce breaking changes in major versions, we may introduce them in a minor update if a provider updates their API in a non-backward compatible way. However, they will never be introduced in a patch update.