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Kakao Talk: iOS

This document describes how to integrate the Kakao Talk messaging PI into your service with the Kakao SDK for iOS (hereinafter referred to as 'iOS SDK').

Tag used in this document

Tag Description
Login required The API marked with this tag requires Kakao Login. You must implement the Kakao Login function first, and then call the corresponding API by using the access token issued when a user logs in.
Consent required To use the API marked with this tag, you must enable the 'Send message in KakaoTalk' scope.
In addition, a user must also consent to the scope. Otherwise, an error occurs.

Before you begin

Register iOS Platform

To use the iOS SDK, you must register the iOS platform in advance. Go to [My Application] > [Platform] and register the iOS platform by specifying the Bundle ID.

Add modules

  1. Add KakaoSDKAuth (Authentication and token management module), KakaoSDKUser (Kakao Login module) and KakaoSDKTalk (Kakao Talk module) in the Podfile by referring to Install SDK.
  2. 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.

Step 1. Select a type of Messaging API

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

Step 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 Message configuration method for more details.

Step 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 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 Operating policy.
IMPORTANT

To send a Kakao Talk message to friends, 1. Get permission. Before permission is granted to your app, you can call this API only for 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 Default template Me (MyChatroom) sendDefaultMemo()
Feed, List, Location, Commerce, Text Default template Friends sendDefaultMessage()
Feed, List, Commerce Custom template Me (MyChatroom) sendCustomMemo()
Feed, List, Commerce Custom template Friends sendCustomMessage()
Scrap Default template Me (MyChatroom) sendScrapMemo()
Scrap Default template Friends sendScrapMessage()
Scrap Custom template Me (MyChatroom) sendScrapMemo()
Scrap 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 Link: 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 Link API. Refer to Kakao Link: iOS > Configure a message.

Send message with default template Login required Consent required

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 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

Parameter
Name Type Description Required
templatable Templatable Object of the message template to be sent.
You must create an object of the class for the desired template.
Refer to Kakao Link: 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

Parameter
Name Type Description Required
receiverUuids [String] uuid ​​obtained through the Retrieving list of friends API.
Up to five uuids are allowed.
O
templatable Templatable Object of the message template to be sent.
You must create an object of the class for the desired template.
Refer to Kakao Link: 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 Login required Consent required

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}.

To send a message to friends, obtain the receiving users' uuids through 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 Android 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

Parameter
Name Type Description Required
templateId Int64 Template ID of the custom template registered in [Tools] > [Message Template Builder].
Refer to Message template builder.
O
templateArgs [String:String]? If the specified template contains a user argument, use this parameter to pass key-value pairs.
You cannot overwrite the scrap 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

Parameter
Name Type Description Required
receiverUuids [String] uuid ​​obtained through 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 scrap 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 scrap message with default template Login required Consent required

This API scraps 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 scrap 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.

To send a message to friends, obtain the receiving users' uuids through 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 Android 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

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

Parameter
Name Type Description Required
receiverUuids [String] uuid ​​obtained through 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 scrap message with custom template Login required Consent required

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

When you request to send a scrap 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}.

To send a message to friends, obtain the receiving users' uuids through 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 Android 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

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 scrap 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 specifed 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 scrap 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

Parameter
Name Type Description Required
receiverUuids [String] uuid ​​obtained through 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 scrap 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 specifed 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 scrap 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 LinkApi. Thus, you must add the Kakao Link module in advance. Refer to Kakao Link: iOS > Upload image.

Legacy

To see how to use the Messaging API using the Legacy Kakao SDK for iOS, click this button. It is highly recommended to migrate to the new version of iOS SDK as soon as possible because the Legacy version may not be supported anymore. The Legacy guide is not provided in the English version. Refer to the original Korean documentation.

See more