- Activity Feed
Activity Feeds shows information in realtime in a list form. Information can be actions, system events or data being published in realtime. This allows a user to be informed without the need to refresh their page. Activity feeds can be published from a 3rd party service or from within your application.
Activity Feeds may consist of multiple event types, for example, sports scores, commentary, red card alerts etc. Adding filters helps users to consume only the data they wish to receive. A user could select scores for example.
You can incorporate more functionality within your Activity Feeds such as:
Adding an indicator which signals to the user that there is new information to load.
Changing the look and feel of an event within a feed.
Ably has simple yet powerful APIs to help you to build Activity Feeds to enrich the end user experience.
Channel is the unit of distribution of messages. Messages represent information, channels can be used to segment the feeds. For example, different matches in a sports event, types of information or tenants. Users or their devices can subscribe to a specific or multiple channels.
channels.get- to get an existing or create a new channel
Pub/Sub is an architectural pattern used to distribute real-time information, as messages. Messages can be of any format. This can be advantageous to segment an activity feed into different types, which can be used to change the look and feel of an information card.
History provides access to historical messages. This can be used to see previously published messages.
channel.history- to get a paginated history of channel messages
Rewind allows you to specify, at the time of attaching to a channel, where to start the attachment from. This is another way to get historical information consistently if subscribing and receiving messages from a channel without using another API.
You'll need to do the following to get started with adding an Activity Feed to your application.
Implement the UI for the Activity Feed
Consider the integration needed to publish events into feeds
Develop a storage mechanism to persist data for longer than Ably's limits