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supabase/apps/reference/docs/guides/auth/auth-slack.mdx
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2022-10-10 22:47:28 -07:00

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---
id: auth-slack
title: 'Login with Slack'
description: Add Slack OAuth to your Supabase project
---
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To enable Slack Auth for your project, you need to set up a Slack OAuth application and add the application credentials to your Supabase Dashboard.
## Overview
Setting up Slack logins for your application consists of 3 parts:
- Create and configure a Slack Project and App on the [Slack Developer Dashboard](https://api.slack.com/apps).
- Add your Slack `API Key` and `API Secret Key` to your [Supabase Project](https://app.supabase.com).
- Add the login code to your [Supabase JS Client App](https://github.com/supabase/supabase-js).
## Access your Slack Developer account
- Go to [api.slack.com](https://api.slack.com/apps).
- Click on `Your Apps` at the top right to log in.
![Slack Developer Portal.](/img/guides/auth-slack/slack-portal.png)
## Find your callback URL
The next step requires a callback URL, which looks like this:
`https://<project-ref>.supabase.co/auth/v1/callback`
- Go to your [Supabase Project Dashboard](https://app.supabase.com).
- Click on the `Settings` icon at the bottom of the left sidebar.
- Click on `API` in the list.
- Under Config / URL you'll find your API URL, you can click `Copy` to copy it to the clipboard.
- Now just add `/auth/v1/callback` to the end of that to get your full `OAuth Redirect URI`.
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## Create a Slack OAuth app
- Go to [api.slack.com](https://api.slack.com/apps).
- Click on `Create an App`
Under `Create an app...`:
- Click `From scratch`
- Type the name of your app
- Select your `Slack Workspace`
- Click `Create App`
Under `App Credentials`:
- Copy and save your newly-generated `Client ID`
- Copy and save your newly-generated `Client Secret`
- Click `Permissions`
Under `Redirect URLs`:
- Click `Add New Redirect URL`
- Paste your `Callback URL` then click `Add`
- Click `Save URLs`
## Enter your Slack credentials into your Supabase Project
- Go to your [Supabase Project Dashboard](https://app.supabase.com).
- In the left sidebar, click the `Authentication` icon (near the top).
- Click `Settings` from the list to go to the `Authentication Settings` page.
- Enter the final (hosted) URL of your app under `Site URL` (this is important).
- Under `External OAuth Providers` turn `Slack Enabled` to ON.
- Enter your `Client ID` (`client_id`) and `Client Secret` (`client_secret`) saved in the previous step.
- Click `Save`.
## Add login code to your client app
When your user signs in, call [signInWithOAuth()](/docs/reference/javascript/auth-signinwithoauth) with `slack` as the `provider`:
```js
async function signInWithSlack() {
const { data, error } = await supabase.auth.signInWithOAuth({
provider: 'slack',
})
}
```
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
async function signout() {
const { error } = await supabase.auth.signOut()
}
```
## Resources
- [Supabase Account - Free Tier OK](https://supabase.com)
- [Supabase JS Client](https://github.com/supabase/supabase-js)
- [Slack Developer Dashboard](https://api.slack.com/apps)