Login with Notion

To enable Notion Auth for your project, you need to set up a Notion Application and add the Application OAuth credentials to your Supabase Dashboard.

Overview

Setting up Notion logins for your application consists of 3 parts:

• Create and configure a Notion Application Notion Developer Portal
• Retrieve your OAuth client ID and OAuth client secret and add them to your Supabase Project
• Add the login code to your Supabase JS Client App

Create your notion integration

• Go to developers.notion.com.

• Click "View my integrations" and login.

• Once logged in, go to notion.so/my-integrations and create a new integration.

• When creating your integration, ensure that you select "Public integration" under "Integration type" and "Read user information including email addresses" under "Capabilities".

• You will need to add a redirect URI, see Add the redirect URI

• Once you've filled in the necessary fields, click "Submit" to finish creating the integration.

Add the redirect URI

• After selecting "Public integration", you should see an option to add "Redirect URIs".

<$Partial path="social_provider_setup.mdx" variables={{ "provider": "Notion" }} />

Add your Notion credentials into your Supabase project

• Once you've created your notion integration, you should be able to retrieve the "OAuth client ID" and "OAuth client secret" from the "OAuth Domain and URIs" tab.

<$Partial path="social_provider_settings_supabase.mdx" variables={{ "provider": "Notion" }} />

Add login code to your client app

<Tabs scrollable size="small" type="underlined" defaultActiveId="js" queryGroup="language"

<$Partial path="create_client_snippet.mdx" />

When your user signs in, call signInWithOAuth() with notion as the provider:

import { createClient } from '@supabase/supabase-js'
const supabase = createClient('<your-project-url>', '<sb_publishable_... or anon key>')

// ---cut---
async function signInWithNotion() {
  const { data, error } = await supabase.auth.signInWithOAuth({
    provider: 'notion',
  })
}

When your user signs in, call signInWithOAuth() with notion as the provider:

Future<void> signInWithNotion() async {
  await supabase.auth.signInWithOAuth(
    OAuthProvider.notion,
    redirectTo: kIsWeb ? null : 'my.scheme://my-host', // Optionally set the redirect link to bring back the user via deeplink.
    authScreenLaunchMode:
        kIsWeb ? LaunchMode.platformDefault : LaunchMode.externalApplication, // Launch the auth screen in a new webview on mobile.
  );
}

When your user signs in, call signInWith(Provider) with Notion as the Provider:

suspend fun signInWithNotion() {
	supabase.auth.signInWith(Notion)
}

<$Partial path="oauth_pkce_flow.mdx" />

<Tabs scrollable size="small" type="underlined" defaultActiveId="js" queryGroup="language"

When your user signs out, call signOut() to remove them from the browser session and any objects from localStorage:

import { createClient } from '@supabase/supabase-js'
const supabase = createClient('<your-project-url>', '<sb_publishable_... or anon key>')

// ---cut---
async function signOut() {
  const { error } = await supabase.auth.signOut()
}

When your user signs out, call signOut() to remove them from the browser session and any objects from localStorage:

Future<void> signOut() async {
  await supabase.auth.signOut();
}

When your user signs out, call signOut() to remove them from the browser session and any objects from localStorage:

suspend fun signOut() {
	supabase.auth.signOut()
}

Resources

• Supabase - Get started for free
• Supabase JS Client
• Notion Account
• Notion Developer Portal