Advanced FeaturesWorkflows

Creating a Workflow using Digest

Digest Notifications work by collecting multiple trigger events, aggregating them into a single message, and delivering it to the user. This becomes useful when a user needs to be notified of a large amount of notifications and you want to avoid sending too many notifications.

How Digest works

  • Creates a digest for each specified time window
  • Starts from the first event trigger
  • Sends the message when the digest window ends

Best For:

  • Consistent communication intervals
  • Periodic updates
  • Non-urgent, informational notifications

This approach ensures regular updates without overwhelming users, regardless of activity levels or triggers.

Example

Consider the following scenario:

  • Scenario: A user has 5 SIPs scheduled on 1st of every month and all SIPs failed due to insufficient balance.
  • Problem: Sending a notification for every SIP failure could spam the user.
  • Solution: Use digest notifications

How it works?

  • Collect SIP failures over a set period (e.g., 1 hour)
  • Send one summary notification

Benefits

  • Reduces notification fatigue
  • Provides a comprehensive overview

This approach keeps users informed without overwhelming them, enhancing their experience with your app.

This use case can be implemented with the below steps.

1Create a Workflow with Webhook as trigger. You can read how to create it here.
2Digest - After adding a digest node in the workflow editor, each node below the digest node will be only triggered once in the specified digest interval. You can decide to send messages before adding a digest node and they will be triggered in real-time.
3Digest Key - You need to provide a unique key to identify the user. This will help the workflow to digest the notifications for that user. In this case, user’s profile_id in your system will be the Digest Key.
4Time Period - Specify how long you want to digest the notifications. Minimum 1 second to maximum 7 days.
5Sum digest data(Optional) - If you want to sum a particular digest key, you can select this checkbox. For example, if you want to calculate the total SIP amount across all SIPs which failed, you can use this option.
  • Custom Variable - Add a custom variable which you need to use it in your template. For example, if u add a variable ‘SIPAmount’ then your digest variable will be $digest.sum.SIPAmount
  • Digest Key - Select the digest key for which you want to sum all the values.
7Notification event - Add a notification event block after the digest depending on what communication you want to send.

How to use Digest data in Template?

In the template, you will find System variable on the LHS of the template editor.

For example, if you want to show the notify the users with the list of failed SIPs, you can do it as shown:

  • $digest.head will give you the top 5 payloads by default. You can see the payload in logs section
  • $digest.tail will give you the last 5 payloads by default. You can see the payload in logs section
  • $digest.count will give you the total count of the payload received.

In this example. $digest.head.SIP_name will give you the SIP which failed.

How to see logs for Digest?

You can see the Digest logs in Logs -> Workflow. Sample logs below

  • Summary - You will see the Digest Key and count will show the no of requests digested. Total time taken will be updated once the Digest is completed and shows the total time taken.
  • Head - It will show the first 5 payloads received for Digest
  • Tail - It will show the last 5 payloads received for Digest

How to receive delivery reports?

Fyno allows you to forward delivery reports to your own system or integrate them with third-party analytics tools like Mixpanel and Amplitude. This feature enables you to track and analyze the success of your notification deliveries seamlessly.

You can read more about it here.

How to configure Idempotent Key?

Workflows now supports idempotency, ensuring you can safely retry requests without the risk of performing the same operation twice. This feature proves invaluable in scenarios where an API call gets interrupted in transit, leaving you without a response.

You can read more about it here.

How to configure overrides?

Fyno allows you to override pre-configured values within an Integration, enabling you to use different values for specific notifications in a Workflow. This flexibility is useful when you need to customize the sender information or other details based on the requirements of each notification.

You can read more about it here.