supabase/apps/docs/content/guides/auth/social-login/auth-notion.mdx

---
id: 'auth-notion'
title: 'Login with Notion'
description: 'Add Notion OAuth to your Supabase project'
---

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](https://www.notion.so/my-integrations)
- Retrieve your OAuth client ID and OAuth client secret and add them to your [Supabase Project](/dashboard)
- Add the login code to your [Supabase JS Client App](https://github.com/supabase/supabase-js)

## Create your notion integration

- Go to [developers.notion.com](https://developers.notion.com/).
  {/* supa-mdx-lint-disable-next-line Rule004ExcludeWords */}
- Click "View my integrations" and login.
  ![notion.so](/docs/img/guides/auth-notion/notion.png)

- Once logged in, go to [notion.so/my-integrations](https://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](#add-the-redirect-uri)
- Once you've filled in the necessary fields, click "Submit" to finish creating the integration.

![notion.so](/docs/img/guides/auth-notion/notion-developer.png)

## Add the redirect URI

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

![notion.so](/docs/img/guides/auth-notion/notion-redirect-uri.png)

<$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.

![notion.so](/docs/img/guides/auth-notion/notion-creds.png)

<$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"
>
<TabPanel id="js" label="JavaScript">

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

When your user signs in, call [`signInWithOAuth()`](/docs/reference/javascript/auth-signinwithoauth) with `notion` as the `provider`:

```js
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',
  })
}
```

</TabPanel>
<TabPanel id="flutter" label="Flutter">

When your user signs in, call [`signInWithOAuth()`](/docs/reference/dart/auth-signinwithoauth) with `notion` as the `provider`:

```dart
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.
  );
}
```

</TabPanel>
<$Show if="sdk:kotlin">
<TabPanel id="kotlin" label="Kotlin">

When your user signs in, call [signInWith(Provider)](/docs/reference/kotlin/auth-signinwithoauth) with `Notion` as the `Provider`:

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

</TabPanel>
</$Show>
</Tabs>

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

<Tabs
  scrollable
  size="small"
  type="underlined"
  defaultActiveId="js"
  queryGroup="language"
>
<TabPanel id="js" label="JavaScript">

When your user signs out, call [signOut()](/docs/reference/javascript/auth-signout) to remove them from the browser session and any objects from localStorage:

```js
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()
}
```

</TabPanel>
<TabPanel id="flutter" label="Flutter">

When your user signs out, call [signOut()](/docs/reference/dart/auth-signout) to remove them from the browser session and any objects from localStorage:

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

</TabPanel>
<$Show if="sdk:kotlin">
<TabPanel id="kotlin" label="Kotlin">

When your user signs out, call [signOut()](/docs/reference/kotlin/auth-signout) to remove them from the browser session and any objects from localStorage:

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

</TabPanel>
</$Show>
</Tabs>

## Resources

- [Supabase - Get started for free](https://supabase.com)
- [Supabase JS Client](https://github.com/supabase/supabase-js)
- [Notion Account](https://notion.so)
- [Notion Developer Portal](https://www.notion.so/my-integrations)