Marks all messages in a group channel as delivered for a specific user. This action is only applicable for users in a group channel.
The following table lists the parameters that this action supports.
Specifies the URL of the target channel.
The following table lists the properties of an HTTP request that this action supports.
Specifies the ID of the recipient to mark messages as delivered.
delivered_ts, which indicates the delivery timestamp of the latest message, of the user is updated, the key
ts indicating the updated value of the user's
delivered_ts is included in the response in Unix milliseconds format.
GET API call that returns a group channel resource contains the
delivery_receipt property inside the resource. A user who has never made a delivery event isn't included in the property. The property consists of the user ID and the timestamp of when the user last received the message in Unix milliseconds as shown below.
In the case of an error, an error object is returned. A detailed list of error codes is available here.