UI Update Based on Data Changes (Integration design pattern)

The Salesforce user interface must be automatically updated as a result of changes to Salesforce data.

Solution:

• Salesforce Streaming API (Best Solution):

This solution is composed of the following components:

• A PushTopic with a query definition that allows you to:
  • Specify what events trigger an update
  • Select what data to include in the notification
• A JavaScript-based implementation of the Bayeux protocol (currently CometD) that can be used by the user interface
• A Visualforce page or Lightning component
• A JavaScript library included as a static resource

This solution has the following limitations:

• Delivery of notifications isn’t guaranteed.
• Order of notifications isn’t guaranteed.
• Notifications aren’t generated from record changes made by Bulk API.

This solution has the following benefits:

• Eliminates the need for writing custom polling mechanisms
• Eliminates the need for a user-initiated feedback loop

For all Design Patterns, please refer this.