Dropbox

OAuth 2.0 provider for Dropbox.

Also see the OAuth 2.0 guide.

Initialization

import { Dropbox } from "arctic";

const dropbox = new Dropbox(clientId, clientSecret, redirectURI);

Create authorization URL

import { generateState } from "arctic";

const state = generateState();
const scopes = ["account_info.read", "files.content.read"];
const url = dropbox.createAuthorizationURL(state, scopes);

Validate authorization code

validateAuthorizationCode() will either return an OAuth2Tokens, or throw one of OAuth2RequestError, ArcticFetchError, or a standard Error (parse errors). Dropbox returns an access token and its expiration.

import { OAuth2RequestError, ArcticFetchError } from "arctic";

try {
	const tokens = await dropbox.validateAuthorizationCode(code);
	const accessToken = tokens.accessToken();
	const accessTokenExpiresAt = tokens.accessTokenExpiresAt();
} catch (e) {
	if (e instanceof OAuth2RequestError) {
		// Invalid authorization code, credentials, or redirect URI
		const code = e.code;
		// ...
	}
	if (e instanceof ArcticFetchError) {
		// Failed to call `fetch()`
		const cause = e.cause;
		// ...
	}
	// Parse error
}

OpenID Connect

Use OpenID Connect with the openid scope to get the user's profile with an ID token or the userinfo endpoint. Arctic provides decodeIdToken() for decoding the token's payload.

Also see supported claims.

const scopes = ["openid"];
const url = dropbox.createAuthorizationURL(state, scopes);

import { decodeIdToken } from "arctic";

const tokens = await dropbox.validateAuthorizationCode(code);
const idToken = tokens.idToken();
const claims = decodeIdToken(idToken);

const response = await fetch("https://api.dropboxapi.com/2/openid/userinfo", {
	headers: {
		Authorization: `Bearer ${accessToken}`
	}
});
const user = await response.json();

Get user profile

Make sure to add the profile scope to get the user profile and the email scope to get the user email.

const scopes = ["openid", "profile", "email"];
const url = dropbox.createAuthorizationURL(state, scopes);

The /users/get_current_account endpoint can also be used.

Refresh access tokens

Set the access_type parameter to offline to get refresh tokens.

const url = dropbox.createAuthorizationURL(state, scopes);
url.searchParams.set("access_type", "offline");

const tokens = await dropbox.validateAuthorizationCode(code);
const accessToken = tokens.accessToken();
const accessTokenExpiresAt = tokens.accessTokenExpiresAt();
const refreshToken = tokens.refreshToken();

Use refreshAccessToken() to get a new access token using a refresh token. Dropbox will only return the access token and its expiration. This method also returns OAuth2Tokens and throws the same errors as validateAuthorizationCode()

import { OAuth2RequestError, ArcticFetchError } from "arctic";

try {
	const tokens = await dropbox.refreshAccessToken(accessToken);
	const accessToken = tokens.accessToken();
	const accessTokenExpiresAt = tokens.accessTokenExpiresAt();
} catch (e) {
	if (e instanceof OAuth2RequestError) {
		// Invalid authorization code, credentials, or redirect URI
	}
	if (e instanceof ArcticFetchError) {
		// Failed to call `fetch()`
	}
	// Parse error
}

Revoke tokens

Pass a token to revokeToken() to revoke all tokens associated with the authorization (in other words, both tokens will be revoked regardless of which one you passed). This can throw the same errors as validateAuthorizationCode().

try {
	await dropbox.revokeToken(token);
} catch (e) {
	if (e instanceof OAuth2RequestError) {
		// Invalid authorization code, credentials, or redirect URI
	}
	if (e instanceof ArcticFetchError) {
		// Failed to call `fetch()`
	}
	// Parse error
}