Noticed

How Noticed Works

Noticed is a Rails notification system that delivers notifications across multiple channels simultaneously.

1. Notifiers Define What and How

Each notification is a class inheriting from Noticed::Event. It defines:

• What params are required
• Which delivery methods to use
• Helper methods via notification_methods block

class NewCommentNotifier < Noticed::Event
  required_params :comment

  deliver_by :email do |config|
    config.mailer = "CommentMailer"
    config.method = :new_comment
  end

  notification_methods do
    def comment
      record
    end
  end
end

2. Individual vs Bulk Delivery

• Individual (deliver_by): One notification per recipient
• Bulk (bulk_deliver_by): One notification for all (e.g., team Slack channel)

3. The Record Pattern

Always pass the primary object as record::

NewCommentNotifier.with(record: @comment).deliver(@recipients)

This enables proper associations and querying from the record side.

4. Async by Default

Noticed uses ActiveJob. Ensure you have a background processor (Sidekiq, etc.) running.

What would you like to do?

1. Set up noticed in a new project
2. Create a new notifier
3. Add a delivery method to existing notifier
4. Debug notification issues
5. Write tests for notifications
6. Something else

If creating a notifier, which delivery methods do you need?

Available delivery methods:

• Email - ActionMailer integration
• ActionCable - Real-time WebSocket
• Slack - Slack webhooks (individual or bulk)
• Microsoft Teams - Teams webhooks
• Twilio - SMS/WhatsApp
• Vonage - SMS
• Apple Push (APNs) - iOS push notifications
• FCM - Firebase Cloud Messaging (Android)
• Discord - Discord webhooks (bulk)
• Bluesky - Bluesky posts (bulk)
• Webhook - Generic HTTP webhooks (bulk)
• Database only - In-app notification center, no external delivery

Then read the matching workflow from workflows/ and follow it.

After Every Change

# 1. Does it build?
bin/rails runner "NewCommentNotifier"

# 2. Do tests pass?
bin/rails test test/notifiers/

# 3. Check job queue
bin/rails runner "puts Sidekiq::Queue.new.size"

Report to the user:

• "Notifier loads: ✓"
• "Tests: X pass, Y fail"
• "Ready for you to test delivery"

Domain Knowledge

All in references/:

Delivery: delivery-methods.md Patterns: notifier-patterns.md Config: configuration.md Database: database-integration.md Mistakes: anti-patterns.md

Workflows

All in workflows/: