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Kakao Talk Messaging: iOS

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Kakao Talk: iOS

This document describes how to integrate the Kakao Talk Messaging API into your service with the Kakao SDK for iOS ("iOS SDK").

Before you begin

Add modules

Add KakaoSDKAuth (Authentication and token management module), KakaoSDKUser (Kakao Login module) and KakaoSDKTalk (Kakao Talk module) in the Podfile by referring to Install SDK.
Add the import statements for the Kakao Login and the Kakao Talk modules as follows.

Swift

RxSwift

import KakaoSDKAuth
import KakaoSDKUser
import KakaoSDKTalk

import KakaoSDKAuth
import RxKakaoSDKAuth

import KakaoSDKUser
import RxKakaoSDKUser

import KakaoSDKTalk
import RxKakaoSDKTalk

Choose an API to use

According to your service's purpose and requirements, you need to decide which API to use first by considering their characteristics and difference.

1. Select a type of Messaging API

There are two types of messaging APIs: Kakao Talk Sharing API and Kakao Talk Messaging API. You need to understand the differences between the two messaging APIs completely by referring to Concepts, and decide which API to use to implement the function to send a message.

2. Select a message type and configuration method

Decide which message template to use by referring to Message template > Types.

You can configure a message according to the default template in JSON format or create a custom template in person for your service. Refer to How to use for more details.

3. Select a target

Note that the Kakao Talk Messaging APIs are categorized according to the message targets:

Send to me: Provides a feature to send a message to the currently logged-in user through Kakao Talk that is linked to the user's Kakao Account. This API is only allowed to send a message to the currently logged-in user, not to the user's friends.
Send to friends: Provides a feature to send a message to user's friends through Kakao Talk that is linked to the Kakao Account of the currently logged-in user. You need to implement a process to get information about the message recipients through the Friends picker or the Retrieving a list of Kakao Talk friends API. Users can send a message to up to 5 friends at a time. The Kakao Talk Messaging API provides daily and monthly quotas. Refer to the quota.

Note

To send a Kakao Talk message to friends, 1. Get permission. Before permission is granted to your app, you can only retrieve the list of the team members. 2. Enable the 'Send message in KakaoTalk' scope in [My Application] > [Kakao Login] > [Consent items]. A user must also consent to the scope. To see more about the conditions for providing friend information, refer to Usage policy.

APIs by conditions

According to the desired message type, the required components of the message and the method to call are different. Refer to Message template components and samples.

Message type	Configuration method	Target	Method
Feed, List, Location, Commerce, Text, Calendar	Default template	Me (MyChatroom)	`sendDefaultMemo()`
Feed, List, Location, Commerce, Text, Calendar	Default template	Friends	`sendDefaultMessage()`
Feed, List, Commerce	Custom template	Me (MyChatroom)	`sendCustomMemo()`
Feed, List, Commerce	Custom template	Friends	`sendCustomMessage()`
Scrape	Default template	Me (MyChatroom)	`sendScrapMemo()`
Scrape	Default template	Friends	`sendScrapMessage()`
Scrape	Custom template	Me (MyChatroom)	`sendScrapMemo()`
Scrape	Custom template	Friends	`sendScrapMessage()`

Set Custom URL Scheme

To make your app launch when a user clicks a button in the Kakao Talk message, you need to set LSApplicationQueriesSchemes to "kakaolink" in the Configure build settings step. Refer to Kakao Talk Sharing: iOS > Set Custom URL Scheme.

Configure a message

The method of configuring a message to use the Kakao Talk Messaging API is the same as the Kakao Talk Sharing API. Refer to Kakao Talk Sharing: iOS > Configure a message.

Send message with default template

This API enables you to configure a message as an object type according to the default template type to use.

After creating the templatable object in JSON format by referring to Configure a message, pass the object by calling SdkJSONDecoder.custom.decode() when calling the Kakao Talk Messaging API.

To send a message to friends, obtain the receiving users' uuids through the Friends picker or the Retrieving list of friends API, and then pass the uuids as the receiverUuids parameter. You can send a message to up to five friends at once.

If the request is successful, the iOS SDK launches Kakao Talk or lets a user log in with Kakao Account on a web page, and then shows a list of friends or chatrooms. When a user selects friends or a chatroom to send the message to, the messages are sent to the selected targets.

If the request is failed, it returns MessageFailureInfo that contains the failure result. Find out the cause of the failure using receiverUuids, code, and msg in MessageFailureInfo by referring to REST API Reference.

Send to me

Basic information

Permission	Prerequisite	Kakao Login	User consent	Reference
-	Register platforms Activate Kakao Login Manage consent items	Required	Required: Send message in KakaoTalk	Common `MessageSendResult` `MessageFailureInfo` iOS SDK `sendDefaultMemo()` ReactiveX iOS SDK `sendDefaultMemo()`

Parameter

Name	Type	Description	Required
templatable	`Templatable`	Object of the message template to be sent. Use one of the following templates: FeedTemplate ListTemplate LocationTemplate CommerceTemplate TextTemplate CalendarTemplate You must create an object of the class for the desired template by referring to Kakao Talk Sharing: iOS > Configure a message.	O

Swift

RxSwift

// For 'templatable', refer to the 'Configure a message' guide.
if let templatable = try? SdkJSONDecoder.custom.decode(FeedTemplate.self, from: feedTemplateJsonStringData) {
    TalkApi.shared.sendDefaultMemo(templatable: templatable) {(error) in
        if let error = error {
            print(error)
        }
        else {
            print("success.")
        }
    }
}

// Class member property
let disposeBag = DisposeBag()

// For 'templatable', refer to the 'Configure a message' guide.
if let templatable = try? SdkJSONDecoder.custom.decode(FeedTemplate.self, from: feedTemplateJsonStringData) {
    TalkApi.shared.rx.sendDefaultMemo(templatable:templatable)
        .retry(when: Auth.shared.rx.incrementalAuthorizationRequired())
        .subscribe (onCompleted:{
            print("success.")            
        }, onError: {error in
            print(error)
        })
        .disposed(by: disposeBag)
}

Send to friends

Basic information

Permission	Prerequisite	Kakao Login	User consent	Reference
Required	Register platforms Activate Kakao Login Manage consent items	Required	Required: Send message in KakaoTalk	Common `MessageSendResult` `MessageFailureInfo` iOS SDK `sendDefaultMessage()` ReactiveX iOS SDK `sendDefaultMessage()`

Parameter

Name	Type	Description	Required
receiverUuids	`[String]`	`uuid` obtained through the Friends picker or the Retrieving list of friends API. Up to five uuids are allowed.	O
templatable	`Templatable`	Object of the message template to be sent. Use one of the following templates: FeedTemplate ListTemplate LocationTemplate CommerceTemplate TextTemplate CalendarTemplate You must create an object of the class for the desired template by referring to Kakao Talk Sharing: iOS > Configure a message.	O

Swift

RxSwift

// For 'templatable', refer to the 'Configure a message' guide.
if let templatable = try? SdkJSONDecoder.custom.decode(FeedTemplate.self, from: feedTemplateJsonStringData) {
    // Retrieve a list of friends.
    TalkApi.shared.friends {(friends, error) in
        if let error = error {
            print(error)
        } else {
            print("friends() success.")
            guard let friends = friends else {
                print(error)
                return
            }
            
            //Implement a window to select friends.
            ...
        
            //uuids of the friends selected in the window. 
            let friendUuids = selectedIds as! [String]
                    
            // Send a Kakao Talk message.
            TalkApi.shared.sendDefaultMessage(templatable: templatable, receiverUuids: friendUuids) { (messageSendResult, error) in
                if let error = error {
                    print(error)
                } else {
                    print("sendDefaultMessage() success.")
                    
                    //Do something
                    _ = messageSendResult
                }
            }
        }
    }
}

// Class member property
let disposeBag = DisposeBag()

// For 'templatable', refer to the 'Configure a message' guide.
if let templatable = try? SdkJSONDecoder.custom.decode(FeedTemplate.self, from: feedTemplateJsonStringData) {
    // Retrieve a list of friends.
    TalkApi.shared.rx.friends()
        .retry(when: Auth.shared.rx.incrementalAuthorizationRequired())
        .subscribe(onSuccess: { (friends) in
            print("friends() success.")
            
            //Implement a window to select friends.
            ...
        
            //uuids of the friends selected in the window. 
            let friendUuids = selectedIds as! [String]

            // Send a Kakao Talk message.
            TalkApi.shared.rx.sendDefaultMessage(templatable:templatable, receiverUuids:friendUuids)
            .retry(when: Auth.shared.rx.incrementalAuthorizationRequired())
            .subscribe(onSuccess:{ (messageSendResult) in
                print("sendDefaultMessage() success.")
                //Do something
                _ = messageSendResult

            }, onFailure: {error in
                print(error)
            })
            .disposed(by: disposeBag)
            
        }, onFailure: {error in
            print(error)
        })
        .disposed(by: disposeBag)
}

Send message with custom template

Unlike the Sending message with default template, you can customize a template in [Tools] > [Message Template Builder] to send a message.

Set templateId to the template ID of the custom template registered in [Message Template Builder]. If you use user arguments for some components when you configure a custom message to input variable information, you must also pass key and value pairs as the value of templateArgs. Otherwise, the defined argument is displayed to users as raw data, such as ${key}.

Send to me

Basic information

Permission	Prerequisite	Kakao Login	User consent	Reference
-	Register platforms Activate Kakao Login Manage consent items Message Template	Required	Required: Send message in KakaoTalk	Common `MessageSendResult` `MessageFailureInfo` iOS SDK `sendCustomMemo()` ReactiveX iOS SDK `sendCustomMemo()`

Parameter

Name	Type	Description	Required
templateId	`Int64`	Template ID of the custom template registered in [Tools] > [Message Template Builder]. Refer to Message template builder. Note: To use a custom template for sending to me, set the purpose of the custom template as [Kakao Talk Sharing].	O
templateArgs	`[String:String]?`	If the specified template contains a user argument, use this parameter to pass key-value pairs. You cannot overwrite the scrape result.	X

Swift

RxSwift

let templateId : Int64 = 12345

TalkApi.shared.sendCustomMemo(templateId: templateId, templateArgs: ["msg":"메세지 파라미터"]) {(error) in
    if let error = error {
        print(error)
    }
    else {
        print("success.")
    }
}

// Class member property
let disposeBag = DisposeBag()

let templateId : Int64 = 12345

TalkApi.shared.rx.sendCustomMemo(templateId: templateId, templateArgs: ["msg":"메세지 파라미터"])
    .retry(when: Auth.shared.rx.incrementalAuthorizationRequired())
    .subscribe (onCompleted:{
        print("success.")        
    }, onError: {error in
        print(error)
    })
    .disposed(by: disposeBag)

Send to friends

Basic information

Permission	Prerequisite	Kakao Login	User consent	Reference
Required	Register platforms Activate Kakao Login Manage consent items Message Template	Required	Required: Send message in KakaoTalk	Common `MessageSendResult` `MessageFailureInfo` iOS SDK `sendCustomMessage()` ReactiveX iOS SDK `sendCustomMessage()`

Parameter

Name	Type	Description	Required
receiverUuids	`[String]`	`uuid` obtained through the Friends picker or the Retrieving list of friends API. Up to five uuids are allowed.	O
templateId	`Int64`	Template ID of the custom template registered in [Tools] > [Message Template Builder]. Used when you want to use a custom message registered in the [Tools] > [Message Template Builder] by passing the template ID of your custom message.	O
templateArgs	`[String:String]?`	If the specified template contains a user argument, use this parameter to pass key-value pairs. You cannot overwrite the scrape result.	X

Swift

RxSwift

let templateId : Int64 = 12345

// Retrieve a list of friends.
TalkApi.shared.friends {(friends, error) in
    if let error = error {
        print(error)
    } else {
        print("friends() success.")
        guard let friends = friends else {
            print(error)
            return
        }
        
        //Implement a window to select friends.
        ...
        
        //uuids of the friends selected in the window. 
        let friendUuids = selectedIds as! [String]

        // Send a Kakao Talk message.
        TalkApi.shared.sendCustomMessage(templateId:templateId, templateArgs:["title":"This is title.", "description":"This is description."], receiverUuids:friendUuids) { (messageSendResult, error) in
            if let error = error {
                print(error)
            } else {
                print("sendCustomMessage() success.")

                //Do something
                _ = messageSendResult
            }
        }   
    }
}

// Class member property
let disposeBag = DisposeBag()

let templateId : Int64 = 12345

// Retrieve a list of friends.
TalkApi.shared.rx.friends()
    .retry(when: Auth.shared.rx.incrementalAuthorizationRequired())
    .subscribe(onSuccess: { (friends) in
        print("friends() success.")
        
        //Implement a window to select friends.
        ...
        
        //uuids of the friends selected in the window. 
        let friendUuids = selectedIds as! [String]

        // Send a Kakao Talk message.
        TalkApi.shared.rx.sendCustomMessage(templateId:templateId, templateArgs:["title":"This is title.", "description":"This is description."], receiverUuids:friendUuids)
            .retry(when: Auth.shared.rx.incrementalAuthorizationRequired())
            .subscribe(onSuccess:{ (messageSendResult) in
                print("sendCustomMessage() success.")
                
                //Do something
                _ = messageSendResult

            }, onFailure: {error in
                print(error)
            })
            .disposed(by: disposeBag)                
            
    }, onFailure: {error in
        print(error)
    })
    .disposed(by: disposeBag)

Send scrape message with default template

This API scrapes a web page, and then configures a message based on the scraped web page information to send a message. Thus, when you request to send a scrape message, you must pass requestUrl, a web page to be scraped. Make sure that you have registered the domain of the web page to be scraped as a site domain in [My Application] > [Platform] > [Web] in advance.

Send to me

Basic information

Permission	Prerequisite	Kakao Login	User consent	Reference
-	Register platforms Activate Kakao Login Manage consent items	Required	Required: Send message in KakaoTalk	Common `MessageSendResult` `MessageFailureInfo` iOS SDK `sendScrapMemo()` ReactiveX iOS SDK `sendScrapMemo()`

Parameter

Name	Type	Description	Required
requestUrl	`String`	Web page URL to be scraped.	O

Swift

RxSwift

let requestUrl = "https://developers.kakao.com"

TalkApi.shared.sendScrapMemo(requestUrl: requestUrl) {(error) in
    if let error = error {
        print(error)
    }
    else {
        print("success.")
    }
}

// Class member property
let disposeBag = DisposeBag()

let requestUrl = "https://developers.kakao.com"

TalkApi.shared.rx.sendScrapMemo(requestUrl: requestUrl)
    .retry(when: Auth.shared.rx.incrementalAuthorizationRequired())
    .subscribe (onCompleted:{        
        print("success.")        
    }, onError: {error in
        print(error)
    })
    .disposed(by: disposeBag)

Send to friends

Basic information

Permission	Prerequisite	Kakao Login	User consent	Reference
Required	Register platforms Activate Kakao Login Manage consent items	Required	Required: Send message in KakaoTalk	Common `MessageSendResult` `MessageFailureInfo` iOS SDK `sendScrapMessage()` ReactiveX iOS SDK `sendScrapMessage()`

Parameter

Name	Type	Description	Required
receiverUuids	`[String]`	`uuid` obtained through the Friends picker or the Retrieving list of friends API. Up to five uuids are allowed.	O
requestUrl	`String`	Web page URL to be scraped.	O

Swift

RxSwift

let requestUrl = "https://developers.kakao.com"
let templateId : Int64 = 12345

// Retrieve a list of friends.
TalkApi.shared.friends {(friends, error) in
    if let error = error {
        print(error)
    } else {
        print("friends() success.")
        guard let friends = friends else {
            print(error)
            return
        }
        
        //Implement a window to select friends.
        ...
        
        //uuids of the friends selected in the window. 
        let friendUuids = selectedIds as! [String]

        // Send a Kakao Talk message.
        TalkApi.shared.sendScrapMessage(requestUrl:requestUrl, receiverUuids:friendUuids) { (messageSendResult, error) in
            if let error = error {
                print(error)
            }
            else {
                print("sendScrapMessage() success.")
                //Do something
                _ = messageSendResult
            }
        }
    }
}

// Class member property
let disposeBag = DisposeBag()

let requestUrl = "https://developers.kakao.com"

TalkApi.shared.rx.friends()
    .retry(when: Auth.shared.rx.incrementalAuthorizationRequired())
    .subscribe(onSuccess: { (friends) in
        print("friends() success.")

        //Implement a window to select friends.
        ...
        
        //uuids of the friends selected in the window. 
        let friendUuids = selectedIds as! [String]

        TalkApi.shared.rx.sendScrapMessage(requestUrl:requestUrl, receiverUuids:friendUuids)
            .retry(when: Auth.shared.rx.incrementalAuthorizationRequired())
            .subscribe(onSuccess:{ (messageSendResult) in
                print("sendScrapMessage() success.")
                
                //Do something
                _ = messageSendResult
                
            }, onFailure: {error in
                print(error)
            })
            .disposed(by: disposeBag)
        
    }, onFailure: {error in
        print(error)
    })
    .disposed(by: disposeBag)

Send scrape message with custom template

This API scrapes a web page, and then configures a message based on the scraped web page information to send a message. Unlike the Sending scrape message with default template, you can use a custom template registered in [Tools] > [Message Template Builder] when requesting to send a scrape message.

When you request to send a scrape message, you must pass requestUrl, a web page to be scraped. Make sure that you have registered the domain of the web page to be scraped as a site domain in [My Application] > [Platform] > [Web] in advance.

Also, you must set templateId to the template ID of the custom template registered in [Message Template Builder]. If you use user arguments for some components when you configure a custom message to input variable information, you must also pass key and value pairs as the value of templateArgs. Otherwise, the defined argument is displayed to users as raw data, such as ${key}.

Send to me

Basic information

Permission	Prerequisite	Kakao Login	User consent	Reference
-	Register platforms Activate Kakao Login Manage consent items Message Template	Required	Required: Send message in KakaoTalk	Common `MessageSendResult` `MessageFailureInfo` iOS SDK `sendScrapMemo()` ReactiveX iOS SDK `sendScrapMemo()`

Parameter

Name	Type	Description	Required
requestUrl	`String`	Web page URL to be scraped. Its domain must match the domain registered on the Kakao Developers.	O
templateId	`Int64`	Used when you want to send a scrape message with the template registered in [Tools] > [Message Template Builder]. Specify the ID of the template to apply. When you use this parameter, the scraped content is applied in the template with the specified `templateId`. Note: To use a custom template for sending to me, set the purpose of the custom template as [Kakao Talk Sharing].	O
templateArgs	`[String:String]?`	If you specify `templateId` and the specified template contains other user arguments besides the default argument keys, pass the user arguments using this parameter in key:value format. You cannot overwrite the scrape result.	X

Swift

RxSwift

let requestUrl = "https://developers.kakao.com"
let templateId : Int64 = 12345

TalkApi.shared.sendScrapMemo(requestUrl: requestUrl, templateId: templateId, templateArgs:["title":"This is title.", "description":"This is description."]) {(error) in
    if let error = error {
        print(error)
    }
    else {
        print("success.")
    }
}

// Class member property
let disposeBag = DisposeBag()

let requestUrl = "https://developers.kakao.com"
let templateId : Int64 = 12345

TalkApi.shared.rx.sendScrapMemo(requestUrl: requestUrl, templateId: templateId, templateArgs:["title":"This is title.", "description":"This is description."])
    .retry(when: Auth.shared.rx.incrementalAuthorizationRequired())
    .subscribe (onCompleted:{        
        print("success.")        
    }, onError: {error in
        print(error)
    })
    .disposed(by: disposeBag)

Send to friends

Basic information

Permission	Prerequisite	Kakao Login	User consent	Reference
Required	Register platforms Activate Kakao Login Manage consent items Message Template	Required	Required: Send message in KakaoTalk	Common `MessageSendResult` `MessageFailureInfo` iOS SDK `sendScrapMessage()` ReactiveX iOS SDK `sendScrapMessage()`

Parameter

Name	Type	Description	Required
receiverUuids	`[String]`	`uuid` obtained through the Friends picker or the Retrieving list of friends API. Up to five uuids are allowed.	O
requestUrl	`String`	Web page URL to be scraped. Its domain must match the domain registered on the Kakao Developers.	O
templateId	`Int64`	Used when you want to send a scrape message with the template registered in [Tools] > [Message Template Builder]. Specify the ID of the template to apply. When you use this parameter, the scraped content is applied in the template with the specified `templateId`.	O
templateArgs	`[String:String]?`	If you specify `templateId` and the specified template contains other user arguments besides the default argument keys, pass the user arguments using this parameter in key:value format. You cannot overwrite the scrape result.	X

Swift

RxSwift

let requestUrl = "https://developers.kakao.com"
let templateId : Int64 = 12345

// Retrieve a list of friends.
TalkApi.shared.friends {(friends, error) in
    if let error = error {
        print(error)
    } else {
        print("friends() success.")
        guard let friends = friends else {
            print(error)
            return
        }
        
        //Implement a window to select friends.
        ...
        
        //uuids of the friends selected in the window. 
        let friendUuids = selectedIds as! [String]

        // Send a Kakao Talk message.
        TalkApi.shared.sendScrapMessage(requestUrl:requestUrl, templateId:templateId, receiverUuids:friendUuids) { (messageSendResult, error) in
            if let error = error {
                print(error)
            }
            else {
                print("sendScrapMessage() success.")
                //Do something
                _ = messageSendResult
            }
        }
    }
}

// Class member property
let disposeBag = DisposeBag()

let requestUrl = "https://developers.kakao.com"
let templateId : Int64 = 12345

TalkApi.shared.rx.friends()
    .retry(when: Auth.shared.rx.incrementalAuthorizationRequired())
    .subscribe(onSuccess: { (friends) in
        print("friends() success.")

        //Implement a window to select friends.
        ...
        
        //uuids of the friends selected in the window. 
        let friendUuids = selectedIds as! [String]

        TalkApi.shared.rx.sendScrapMessage(requestUrl:requestUrl, templateId:templateId, receiverUuids:friendUuids)
            .retry(when: Auth.shared.rx.incrementalAuthorizationRequired())
            .subscribe(onSuccess:{ (messageSendResult) in
                print("sendScrapMessage() success.")
                
                //Do something
                _ = messageSendResult
                
            }, onFailure: {error in
                print(error)
            })
            .disposed(by: disposeBag)
        
    }, onFailure: {error in
        print(error)
    })
    .disposed(by: disposeBag)

Upload image

You can attach images to a message by passing an image URL when configuring a message template or by uploading images in the Message template builder in advance.

If you add an image through an image URL, you need to call the imageUpload() method defined in ShareApi. Thus, you must add the Kakao Talk Sharing module in advance. Refer to Kakao Talk Sharing: iOS > Upload image.

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Message

Kakao Talk: iOS

Before you begin

Add modules

Choose an API to use

APIs by conditions

Set Custom URL Scheme

Configure a message

Send message with default template

Send to me

Basic information

Parameter

Send to friends

Basic information

Parameter

Send message with custom template

Send to me

Basic information

Parameter

Send to friends

Basic information

Parameter

Send scrape message with default template

Send to me

Basic information

Parameter

Send to friends

Basic information

Parameter

Send scrape message with custom template

Send to me

Basic information

Parameter

Send to friends

Basic information

Parameter

Upload image

See more