Login with Slack

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.
• Add your Slack API Key and API Secret Key to your Supabase Project.
• Add the login code to your Supabase JS Client App.

Access your Slack Developer account#

• Go to api.slack.com.
• Click on Your Apps at the top right to log in.

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
• Click on the Authentication icon in the left sidebar
• Click on Providers under the Configuration section
• Click on Slack from the accordion list to expand and you'll find your Redirect URL, you can click Copy to copy it to the clipboard

Create a Slack OAuth app#

• Go to api.slack.com.
• 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
• In the left sidebar, click the Authentication icon (near the top)
• Click on Providers under the Configuration section
• Click on Slack from the accordion list to expand and turn Slack Enabled to ON
• Enter your Slack Client ID and Slack Client Secret saved in the previous step
• Click Save

Add login code to your client app#

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

async function signInWithSlack() {
  const { data, error } = await supabase.auth.signInWithOAuth({
    provider: 'slack',
  })
}

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

async function signout() {
  const { error } = await supabase.auth.signOut()
}

Resources#

• Supabase Account - Free Tier OK
• Supabase JS Client
• Slack Developer Dashboard