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Data Binding
The Chat enables you to bind its message list to streaming data.
Data Model
The Chat component defines interfaces for the following entities:
User—A unique participant in the conversation.Message—The metadata and content of each message.Attachment—The multimedia or additional information which is associated with a chat message.Action—A suggested quick action in reply to a message. For example, a text reply, external link, or phone call.
As a minimum data-binding configuration for the Chat, provide a list of messages and a user instance which identify the local participant.
User Identity
The user entity identifies the local user. The messages that are authored by the user appear on the right-hand side of the message list.
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Binding to Message Data
Typically, Chat messages stream from a remote service. To bind the Chat to the stream, utilize the built-in async pipe.
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Posting Messages
When you set up the messages stream, add the locally posted messages:
- Publish the local messages on an observable stream.
- Merge the messages with the service responses.
The following example demonstrates how to accept the local messages in the sendMessage event and merge them with the incoming messages.
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