Message Reactions API for Swift Native SDK
Add or remove reactions on published messages to build features like receipts, reactions, or to associate custom metadata to messages. Clients can subscribe to a channel to receive message reaction events on that channel. They can also fetch past message reactions from Message Persistence independently or when they fetch original messages.
Terminology
All message reactions in code are collectively called message reactions in the docs and the term applies both to reacting to a message (through emojis) and acting on a message (by deleting it).
Add Message Reaction
Requires Message Persistence
This method requires that Message Persistence is enabled for your key in the Admin Portal.
Add an action on a published message
. Returns the added action in the response.
Method(s)
To Add a Message Reaction you can use the following method(s) in the Swift SDK:
addMessageAction(
channel: String,
type actionType: String,
value: String,
messageTimetoken: Timetoken,
custom requestConfig: RequestConfiguration = RequestConfiguration(),
completion: ((Result<PubNubMessageAction, Error>) -> Void)?
)
Parameter | Description |
---|---|
channel *Type: String Default: n/a | The name of the channel |
type *Type: String Default: n/a | The Message Reaction's type |
value *Type: String Default: n/a | The Message Reaction's value |
messageTimetoken *Type: Timetoken Default: n/a | The publish timetoken of a parent message. |
custom Type: RequestConfiguration Default: RequestConfiguration() | An object that allows for per-request customization of PubNub Configuration or Network Session |
completion Type: ((Result<PubNubMessageAction, Error>) -> Void)? Default: nil | The async Result of the method call |
Completion Handler Result
Success
The PubNubMessageAction
that was added.
public protocol PubNubMessageAction {
/// The type of action
var actionType: String { get }
/// The value that corresponds to the type
var actionValue: String { get }
/// The `Timetoken` for this specific action
var actionTimetoken: Timetoken { get }
/// The `Timetoken` for the message this action relates to
var messageTimetoken: Timetoken { get }
/// The publisher of the message reaction
var publisher: String { get }
show all 19 linesFailure
An Error
describing the failure.
Basic Usage
Reference code
This example is a self-contained code snippet ready to be run. It includes necessary imports and executes methods with console logging. Use it as a reference when working with other examples in this document.
import PubNubSDK
// Creates a configuration object using the demo keys
let config = PubNubConfiguration(
publishKey: "demo",
subscribeKey: "demo",
userId: "myUniqueUserId"
)
// Initializes a PubNub object with the configuration
let pubnub = PubNub(configuration: config)
// Add a message action
func addMessageActionExample() {
pubnub.addMessageAction(
show all 29 linesRemove Message Reaction
Requires Message Persistence
This method requires that Message Persistence is enabled for your key in the Admin Portal.
Remove a previously added action on a published message.
Method(s)
To Remove a Message Reaction you can use the following method(s) in the Swift SDK:
removeMessageActions(
channel: String,
message timetoken: Timetoken,
action actionTimetoken: Timetoken,
custom requestConfig: RequestConfiguration = RequestConfiguration(),
completion: ((Result<(channel: String, message: Timetoken, action: Timetoken), Error>) -> Void)?
)
Parameter | Description |
---|---|
channel *Type: String Default: n/a | The name of the channel. |
message *Type: Timetoken Default: n/a | The publish timetoken of a parent message. |
action *Type: Timetoken Default: n/a | The action timetoken of a message reaction to be removed. |
custom Type: RequestConfiguration Default: RequestConfiguration() | An object that allows for per-request customization of PubNub Configuration or Network Session |
completion Type: ((Result<(channel: String, message: Timetoken, action: Timetoken), Error>) -> Void)? Default: nil | The async Result of the method call |
Completion Handler Result
Success
A Tuple
containing the channel, message Timetoken
, and action Timetoken
of the action that was removed.
Failure
An Error
describing the failure.
Basic Usage
pubnub.removeMessageActions(
channel: "my_channel",
message: 15_610_547_826_969_050,
action: 15_610_547_826_970_050
) { result in
switch result {
case let .success(response):
print("Action published at \(response.action) was removed from message \(response.message) on channel \(response.channel)")
case let .failure(error):
print("Error from failed response: \(error.localizedDescription)")
}
})
Get Message Reactions
Requires Message Persistence
This method requires that Message Persistence is enabled for your key in the Admin Portal.
Get a list of message reactions in a channel
. Returns a list of actions sorted by the action's timetoken in ascending order.
Truncated response
Number of message reactions in the response may be truncated when internal limits are hit. If the response is truncated, a more
property will be returned with additional parameters. Send iterative calls to Message Persistence adjusting the parameters to fetch more message reactions.
Method(s)
To Get Message Reactions you can use the following method(s) in the Swift SDK:
fetchMessageActions(
channel: String,
page: PubNubBoundedPage? = PubNubBoundedPageBase(),
custom requestConfig: RequestConfiguration = RequestConfiguration(),
completion: ((Result<(actions: [PubNubMessageAction], next: PubNubBoundedPage?), Error>) -> Void)?
)
Parameter | Description |
---|---|
channel *Type: String Default: n/a | The name of the channel. |
page Type: PubNubBoundedPage? Default: PubNubBoundedPageBase() | The paging object used for pagination. It allows you to specify a range of messages to retrieve based on specific time bounds. |
custom Type: RequestConfiguration Default: RequestConfiguration() | An object that allows for per-request customization of PubNub Configuration or Network Session |
completion Type: ((Result<(channel: String, message: Timetoken, action: Timetoken), Error>) -> Void)? Default: nil | The async Result of the method call |
Completion Handler Result
Success
An Array
of PubNubMessageAction
for the request channel, and the next request PubNubBoundedPage
(if one exists).
public protocol PubNubMessageAction {
/// The type of action
var actionType: String { get }
/// The value that corresponds to the type
var actionValue: String { get }
/// The `Timetoken` for this specific action
var actionTimetoken: Timetoken { get }
/// The `Timetoken` for the message this action relates to
var messageTimetoken: Timetoken { get }
/// The publisher of the message reaction
var publisher: String { get }
show all 19 linespublic protocol PubNubBoundedPage {
/// The start value for the next set of remote data
var start: Timetoken? { get }
/// The bounded end value that will be eventually fetched to
var end: Timetoken? { get }
/// The previous limiting value (if any)
var limit: Int? { get }
}
Failure
An Error
describing the failure.
Basic Usage
pubnub.fetchMessageActions(
channel: String,
) { result in
switch result {
case let .success(response):
print("The actions for the channel \(response.actions)")
if let nextPage = response.next {
print("The next page used for pagination: \(nextPage)")
}
case let .failure(error):
print("Error from failed response: \(error.localizedDescription)")
}
})