Slack Single Sign-On (SSO) login Solution enables easy and secure login into multiple apps/websites using Slack as OAuth and OpenID Connect provider with single Slack login credentials. Here in this guide we will go through the step-by-step process of configuring SSO login between websites/applications and Slack by considering Slack as an IdP (Identity provider) and miniOrange as SP (Service provider) using Slack as an OAuth provider. Once configured successfully, Slack Single Sign-On will let you and your users to securely login to your website/application using existing Slack Credentials via OAuth Protocol. By the end of this guide, users should be able to login to their apps/website from Slack.

Steps to configure Slack Single Sign-On (SSO) Login

Step 1: Setup Slack as OAuth 2.0 Provider in miniOrange.

• Go to miniOrange Admin Console.
• From the left navigation bar select Identity Provider. Select Oauth

• Enter the following values.

IdP Name	Custom Provider
IdP Display Name	Choose appropriate Name
OAuth Authorize Endpoint	https://slack.com/oauth/authorize
OAuth Access Token Endpoint	https://slack.com/api/oauth.access
OAuth Get User Info Endpoint (optional)	https://slack.com/api/users.profile.get
Client ID	From step 1
Client secret	From step 1
Scope	users.profile:read

Step 2: Setup miniOrange as Service Provider (SP) in Slack

• Go to https://api.slack.com/apps and log into your Slack account.
• You will be presented with following screen. Click on Create new App.

• Choose how you'd like to configure your app's scopes and settings.

• You will be shown a form where you have to enter Application Name and Development Slack Workspace. Fill the form with appropriate information and click on Create App.

• After creating the slack application, you will be brought to Application Management page. Scroll down to “App Credentials” section. Here you will find given Client ID and Client Secret for your slack application.

• Copy these credentials in MO OAuth App configuration on corresponding fields.
• Go to OAuth & Permissions

• To get the Redirect URL:
• Go to miniOrange Admin Console.
• From the left navigation bar select Identity Provider.

• Copy the Callback URL as Redirect URL required for next step.

• Add Redirect URL: In slack application's Redirect URLs section, Click on Add New Redirect URL and enter the same from the MO OAuth Client. Click on Save URLs.

• Scroll down and go to the Scope section,click on Add an OAuth scope button.

• Select scope from dropdown list and Save Changes. These scopes must be same on the miniOrange OAuth Application Configuration page.


You have successfully completed your Slack App configurations.

Step 3: Configure your application in miniOrange

Step 4: Login using IDP selection page (Optional)

• You can configure multiple IDPs (Identity Providers) and give users the option to select the IDP of their choice to authenticate with.
  For Example - It could be multiple AD domains belonging to different departments or multiple okta organizations.

Few usecases where customers configure multiple IDPs -


• Suppose you have a product which many of your clients use and each client has their own unique IDP so you want them to SSO into your product as well using their existing IDP only. miniOrange provides a centralized way to connect with all IDPs in a very easy manner and integrate SSO into your application.
• Suppose you are providing a course to many universities, each having a unique SAML, OAuth protocol supported IDP's like Shibboleth, ADFS, CAS, etc. You can provide Single Sign-On (SSO) into your course application to all these universities by integrating with all of them using a single platform provided by miniOrange.
• This is the endpoint to call from your SAML application -

  For Cloud IDP -	https://login.xecurify.com/moas/discovery?customerId=<customer_id>
  For On-Premise IDP -	https://yourdomain.com/discovery?customerId=<customer_id>

• You should copy the Customer Key from admin console-> Settings -> and replace it with <customer_id> here. Once configured in SP, when you initiate the login from Service Provider, a user will be redirected to IDP Selection Page listing all IDPs configured for that account.

You can see the screenshot below of the IDP Selection Page with a list of IDPs .



Note: To view the IDP in drop-down list, go to Identity Providers tab > against your configured IDP > Select >Edit , here Enable the Show IdP to Users option.


• You can also change the look and feel of this page. Login to miniOrange Admin console. Navigate to Customization -> Branding Configuration. See the below screenshot for reference-
  

1. You can customize the title of this page.
2. Change the logo and favicon for this page.
3. Change the background and button color for this page from admin UI.

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In this guide, you have learnt how to successfully configure the Slack Single Sign-On (SSO) by integrating Slack as OAuth IdP Provider with miniorange as SP. This solution will let your users securely authenticate themselves for apps/websites using their existing Slack login credentials.

Additional Resources

• What is OAuth 2.0
• OAuth 2.0 Slack
• Slack SAML Single Sign-On SSO
• Slack OAuth & OpenID connect Single Sign-On (SSO)
• Login into Wordpress with Slack using OAuth protocol
• Setup Single Sign On For OAuth Apps
• Frequently Asked Questions (FAQs)

You can connect with any External IDP via SAML, OAuth, CAS or User Directory via LDAP, Database Connection or APIs.
Contact us on idpsupport@xecurify.com for quick guidance(via email/meeting) on your requirement and our team will help you set up SSO with your IdP in no time.