Slack Message Handler > Using the Slack Message Handler recipe > Step 5. Create a webhook in Slack
  

Step 5. Create a webhook in Slack

Configure a Slack app to call an API whenever a new message arrives.
To configure a Slack app, perform the following steps:
  1. 1Create a Slack app.
  2. 2Enable the events API.
  3. 3Subscribe to the event.
  4. 4Set the required OAuth scopes.
  5. 5Enable token rotation.
  6. 6Add the bot to a channel.

Step 1. Create a Slack app

  1. 1Go to https://api.slack.com/apps and log in to your account.
  2. 2Click Create New App > From scratch.
  3. 3Enter the app name, select your workspace, and then click Create App as shown in the following image:
    4. The image shows the Name app & choose workspace dialog box where you can enter the app name and select your workspace.
  4. 4Select your app, go to Basic Information > App Credentials, and copy the client ID and client secret.

Step 2. Enable the events API

  1. 1From the left navigation bar, go to Event Subscriptions.
  2. 2Turn on the toggle switch to enable events.
  3. 3In the Request URL field, enter the service URL that you get after publishing the process.
    4. Slack sends a challenge request to verify the URL as shown in the following image:
    The image shows the Event Subscriptions dialog box where you can enter the service URL after publishing the process.

Step 3. Subscribe to the event

  1. 1In the Subscribe to bot events section, click Add Bot User Event and add one of the following events:
    2. The event allows your app to receive messages from channels it belongs to as shown in the following image:
    The image shows the Event Subscriptions page where you can add bot events.

Step 4. Set the required OAuth scopes

  1. 1Go to OAuth & Permissions.
  2. 2In the Bot Token Scopes section, click Add an OAuth Scope and add one of the following OAuth scopes:
  3. 3In the Redirect URLs section, click Add New Redirect URL and add the redirect URLs in <POD URL>/oauthcallback format and save the URLs.
    4. For example, https://na1.dm-us.informaticacloud.com/oauthcallback. The following image shows the redirect URLs:
    The image shows the redirect URLs.
  4. 4Install the app using the Install App section.

Step 5. Enable token rotation

  1. 1Go to OAuth & Permissions.
  2. 2In the Advanced token security via token rotation section, click Opt In as shown in the following image:
    3. The image shows the Opt In option on the OAuth & Permissions page.
  3. 3Save the bot OAuth token.

Step 6. Add the bot to a channel

  1. 1In Slack, go to the required channel.
  2. 2Invite the bot using /invite @<your-bot-name>.