Messaging

If you need translation feature, see below.

Message translation feature is provided through Google Cloud Translation. To use this feature, register an appropriate Google Cloud Service Account Key on our dashboard.

  • Setting translationLanguage property in TPMessageRetrievalParams object with language code (ISO-639) retrieves message with its translated text.

  • Setting translationLanguage property in TPMessageSendParams with language code (ISO-639) when sending message will automatically translate the message text.

  • Supported languages (ISO-639) can be found here.

  • Calling 'getTranslatedText' on TPMessage object will return a Key-Value map. Translated text(value) can be accessed from the map by using language code (used in 'translationLanguage' parameter) as key.

1. Get Messages

Messages are sorted by most recent (default).

Setting translationLanguage property in TPMessageRetrievalParams object will return TPMessage objects with translated texts via success block (success closure).

  • Use this to translate channel messages from the past.

  • For realtime message translation, see this.

  • TPMessageRetrievalParams class is available starting from TalkPlus iOS SDK v0.5.3.

// get messages from channel
TPMessageRetrievalParams *params = 
    [[TPMessageRetrievalParams alloc] initWithChannel:channel];
params.lastMessage = lastMessage;
params.orderby = TPOrderByLatest;
params.translationLanguage = translationLanguage;

[[TalkPlus sharedInstance] getMessages:params 
    success:^(NSArray<TPMessage *> *tpMessages, BOOL hasNext) {
    // SUCCESS
    // If 'hasNext' is YES, call this method with the last object in 'tpMessages'.
} failure:^(int errorCode, NSError *error) {
    // FAILURE
}];

// get a single message from channel
TPMessageRetrievalParams *params = 
    [[TPMessageRetrievalParams alloc] initWithChannel:channel];
params.messageId = messageId;
params.translationLanguage = translationLanguage;

[[TalkPlus sharedInstance] getMessage:tpChannel
                            messageId:messageId
                            translationLanguage:@""
                            success:^(TPMessage *tpMessage) {
    
} failure:^(int errorCode, NSError *error) {
    
}];

2. View Messages With File Upload

View messages with file attachment.

Messages are sorted by most recent (default).

Setting translationLanguage property in TPMessageRetrievalParams object will return TPMessage objects with translated texts via success block (success closure).

  • Use this to translate channel messages from the past.

  • For realtime message translation, see this.

  • TPMessageRetrievalParams class is available starting from TalkPlus iOS SDK v0.5.3.

TPMessageRetrievalParams *params = 
    [[TPMessageRetrievalParams alloc] initWithChannel:channel];
params.lastMessage = lastMessage;
params.orderby = TPOrderByLatest;
params.translationLanguage = translationLanguage;

[[TalkPlus sharedInstance] getFileMessages:params 
    success:^(NSArray<TPMessage *> *tpMessages, BOOL hasNext) {
    // SUCCESS
    // If 'hasNext' is YES, call this method with the last object in 'tpMessages'.
} failure:^(int errorCode, NSError *error) {
    // FAILURE
}];

3. Send Message

The following message types are supported: text, hidden, custom.

  • Push notification is not sent for hidden message type.

  • admin, admin_hidden message type can only be sent from TalkPlus dashboard or by calling REST API.

  • If you have users you want to mention, you can pass an array of user IDs in the mentions field.

  • You can enter up to 10 key-value pairs in data field. The maximum size of key is 128 characters and the maximum size of value is 1024 characters. Both key and value must be strings.

  • Both message text and data cannot be empty when sending a message.

  • The maximum size of message text is 8192 characters.

  • The maximum file upload size is 15MB.

    • If you need to handle files bigger than 15MB, see this.

  • Emojis supported by UTF-8 can be used in message text.

  • For custom emojis, required values can be put into message text then parsed directly.

Setting translationLanguages property in TPMessageSendParams object will return TPMessage objects with translated texts via ''success block (success closure). Message recipient will be able to check the message via "messageReceived" callback event.

  • TPMessageSendParams class is available starting from TalkPlus iOS SDK v0.5.3.

// send message
TPMessageSendParams * params = 
    [[TPMessageSendParams alloc] initWithContentType:TPMessageContentText
        messageType:TPMessageText
        channel:channel];
        
params.textMessage = text; // required
params.mentionUserIDs = mentionUserIDs;
params.parentMessageId = parentMessageId;
params.fileUrl = fileUrl;
params.translationLanguages = translationLanguages;

[[TalkPlus sharedInstance] sendMessage:params success:^(TPMessage *tpMessage) {
    // SUCCESS
} failure:^(int errorCode, NSError *error) {
    // FAILURE
}];

// file upload
TPMessageSendParams * params = 
    [[TPMessageSendParams alloc] initWithContentType:TPMessageContentFile
        messageType:TPMessageText
        channel:channel];

params.filePath = filePath; // required
params.textMessage = textMessage;
params.mentionUserIDs = mentionUserIDs;
params.parentMessageId = parentMessageId;
params.translationLanguages = translationLanguages;

[[TalkPlus sharedInstance] sendMessage:params success:^(TPMessage *tpMessage) {
    // SUCCESS
} failure:^(int errorCode, NSError *error) {
    // FAILURE
}];

4. Get Message

View a single message.

// get a message from the channel
TPMessageRetrievalParams *params = 
    [[TPMessageRetrievalParams alloc] initWithChannel:channel];
params.translationLanguage = translationLanguage;

[[TalkPlus sharedInstance] getMessage:params 
    success:^(TPMessage *tpMessage) {
    // SUCCESS
} failure:^(int errorCode, NSError *error) {
    // FAILURE
}];

5. Reply To Message

Reply to another message.

TPMessageSendParams * params = 
    [[TPMessageSendParams alloc] initWithContentType:TPMessageContentText
        messageType:TPMessageText
        channel:channel];
        
params.textMessage = @"hello";
params.parentMessageId = @"anotherMessageIdThatIamReplyingTo";

[[TalkPlus sharedInstance] sendMessage:params success:^(TPMessage *tpMessage) {
    // SUCCESS
} failure:^(int errorCode, NSError *error) {
    // FAILURE
}];

6. Mark As Read

You can mark a channel as read.

[[TalkPlus sharedInstance] markAsReadChannel:tpChannel 
    success:^(TPChannel *tpChannel) {
    // SUCCESS
} failure:^(int errorCode, NSError *error) {
    // FAILURE
}]

7. React To Message

You can add/remove reaction to a message.

  • reaction must be alphanumeric and between 1 and 64 characters long.

  • Each message can have up to 10 reaction types.

  • Each reaction type can contain up to 100 user IDs.

// add reaction
[[TalkPlus sharedInstance] addMessageReaction:tpMessage 
    reaction:reaction 
    success:^(TPMessage *tpMessage) {
    // SUCCESS
} failure:^(int errorCode, NSError *error) {
    // FAILURE
}];

// remove reaction
[[TalkPlus sharedInstance] removeMessageReaction:tpMessage 
    reaction:reaction 
    success:^(TPMessage *tpMessage) {
    // SUCCESS
} failure:^(int errorCode, NSError *error) {
    // FAILURE
}];

// see reactions in message object
[tpMessage getReactions];
/*
{
    "happy": [
        "user1",
        "user2"
    ],
    "sad": [
        "user3"
    ]
}
*/

8. Get Unread Message Count

You can find out how many channel members have not read a particular message.

[tpChannel getMessageUnreadCount:tpMessage];

9. Delete Message

You can delete your own message.

[[TalkPlus sharedInstance] deleteMessage:tpChannel 
    message:tpMessage 
    success:^{
    // SUCCESS
} failure:^(int errorCode, NSError *error) {
    // FAILURE
}];
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