/td-ios-sdk

iOS SDK for Treasure Data

Primary LanguageObjective-CApache License 2.0Apache-2.0

TreasureData iOS SDK

iOS SDK for Treasure Data. With this SDK, you can import the events on your applications into TreasureData easily. This library supports iOS 5 or later.

Also, there is a more modern alternative SDK written in Swift https://github.com/recruit-lifestyle/TreasureDataSDK.

Installation

There are several ways to install the library.

CocoaPods

CocoaPods is needed to set up the SDK. If you've not installed it yet, install it at first.

$ gem install cocoapods

Next, add this line in your Podfile.

pod 'TreasureData-iOS-SDK', '= 0.1.23'

If you use the SDK in Swift, add this line to your Podfile.

use_frameworks!

Finally, execute 'pod install'.

$ pod install

Framework

Download TreasureData.framework and add it and libz library into your project.

Usage in Objective-C

Import SDK header file

#import <TreasureData-iOS-SDK/TreasureData.h>

Register your TreasureData API key

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    [TreasureData initializeWithApiKey:@"your_api_key"];
}

We recommend to use a write-only API key for the SDK. To obtain one, please:

  1. Login into the Treasure Data Console at http://console.treasuredata.com;
  2. Visit your Profile page at http://console.treasuredata.com/users/current;
  3. Insert your password under the 'API Keys' panel;
  4. In the bottom part of the panel, under 'Write-Only API keys', either copy the API key or click on 'Generate New' and copy the new API key.

Add events to local buffer

- (IBAction)clickButton:(id)sender {
    [[TreasureData sharedInstance] addEventWithCallback:@{
                       @"name": @"boo bar",
                       @"age": @42,
                       @"comment": @"hello world"
                   }
                   database:@"testdb"
                      table:@"demotbl"
                  onSuccess:^(){
                      NSLog(@"addEvent: success");
                  }
                    onError:^(NSString* errorCode, NSString* message) {
                        NSLog(@"addEvent: error. errorCode=%@, message=%@", errorCode, message);
                    }];
}

Or, simply call addEvent method instead of addEventWithCallback.

    [[TreasureData sharedInstance] addEvent:@{
                       @"name": @"boo bar",
                       @"age": @42,
                       @"comment": @"hello world"
                   }
                   database:@"testdb"
                      table:@"demotbl"];

Specify the database and table to which you want to import the events.

Upload buffered events to TreasureData

- (void)applicationDidEnterBackground:(UIApplication *)application {
	__block UIBackgroundTaskIdentifier bgTask = [application beginBackgroundTaskWithExpirationHandler:^{
		[application endBackgroundTask:bgTask];
		bgTask = UIBackgroundTaskInvalid;
	}];

	[[TreasureData sharedInstance] uploadEventsWithCallback:^() {
			[application endBackgroundTask:bgTask];
			bgTask = UIBackgroundTaskInvalid;
		}
		onError:^(NSString *code, NSString *msg) {
			[application endBackgroundTask:bgTask];
			bgTask = UIBackgroundTaskInvalid;
		}
	];
}

Or, simply call uploadEvents method instead of uploadEventsWithCallback.

    [[TreasureData sharedInstance] uploadEvents];

The sent events are going to be buffered for a few minutes before they get sent and imported into TreasureData storage.

Start/End session

When you call startSession method, the SDK generates a session ID that's kept until endSession is called. The session id is outputs as a column name "td_session_id". Also, startSession and endSession methods add an event that includes {"td_session_event":"start" or "end"}.

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
	[TreasureData initializeWithApiKey:@"your_api_key"];
	[[TreasureData sharedInstance] setDefaultDatabase:@"testdb"];
	[[TreasureData sharedInstance] startSession:@"demotbl"];
}

- (void)applicationDidEnterBackground:(UIApplication *)application
{
	[[TreasureData sharedInstance] endSession:@"demotbl"];

	__block UIBackgroundTaskIdentifier bgTask = [application beginBackgroundTaskWithExpirationHandler:^{
		[application endBackgroundTask:bgTask];
		bgTask = UIBackgroundTaskInvalid;
	}];

	[[TreasureData sharedInstance] uploadEventsWithCallback:^() {
			[application endBackgroundTask:bgTask];
			bgTask = UIBackgroundTaskInvalid;
		}
		onError:^(NSString *code, NSString *msg) {
			[application endBackgroundTask:bgTask];
			bgTask = UIBackgroundTaskInvalid;
		}
		// Outputs =>>
		//   [{"td_session_id":"cad88260-67b4-0242-1329-2650772a66b1",
		//		"td_session_event":"start", "time":1418880000},
		//
		//    {"td_session_id":"cad88260-67b4-0242-1329-2650772a66b1",
		//		"td_session_event":"end", "time":1418880123}
		//    ]
	];

If you want to handle the following case, use a pair of class methods startSession and endSession for global session tracking

  • User opens the application and starts session tracking using startSession. Let's call this session session#0
  • User moves to home screen and finishes the session using endSession
  • User reopens the application and restarts session tracking within default 10 seconds. But you want to deal with this new session as the same session as session#0
- (void)applicationDidBecomeActive:(UIApplication *)application
{
	[TreasureData startSession];
}

- (void)applicationDidEnterBackground:(UIApplication *)application
{
	[TreasureData endSession];
}

In this case, you can get the current session ID using getSessionId class method

- (void)applicationDidBecomeActive:(UIApplication *)application
{
	[TreasureData startSession];
    NSLog(@"Session ID=%@", [TreasureData getSessionId]);
}

Detect if it's the first running

You can detect if it's the first running or not easily using isFirstRun method and then clear the flag with clearFirstRun.

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
		:
    if ([[TreasureData sharedInstance] isFirstRun]) {
        [[TreasureData sharedInstance] addEventWithCallback:@{ @"event": @"installed" }
                               database:@"testdb"
                                  table:@"demotbl"
                              onSuccess:^(){
                                  [[TreasureData sharedInstance] uploadEventsWithCallback:^() {
                                      [[TreasureData sharedInstance] clearFirstRun];
                                    }
                                    onError:^(NSString* errorCode, NSString* message) {
                                      NSLog(@"uploadEvents: error. errorCode=%@, message=%@", errorCode, message);
                                    }
                                   ];
                                }
                                onError:^(NSString* errorCode, NSString* message) {
                                    NSLog(@"addEvent: error. errorCode=%@, message=%@", errorCode, message);
                                }];
    }

About Error code

addEventWithCallback and uploadEventsWithCallback methods call back onError block with errorCode argument. This argument is useful to know the cause type of the error. There are the following error codes.

  • init_error : The initialization failed.
  • invalid_param : The parameter passed to the API was invalid
  • invalid_event : The event was invalid
  • data_conversion : Failed to convert the data to/from JSON
  • storage_error : Failed to read/write data in the storage
  • network_error : Failed to communicate with the server due to network problem
  • server_response : The server returned an error response

Additional Configuration

Endpoint

The API endpoint (default: https://in.treasuredata.com) can be modified using initializeApiEndpoint class method. For example,

    [TreasureData initializeApiEndpoint:@"https://in.treasuredata.com"];
    [TreasureData initializeWithApiKey:@"your_api_key"];

Encryption key

If you've set an encryption key via initializeEncryptionKey class method, our SDK saves the events data as encrypted when called addEvent or addEventWithCallback methods.

    [TreasureData initializeEncryptionKey:@"hello world"];
        :
    [[TreasureData sharedInstance] addEventWithCallback: ....];

Default database

    [[TreasureData sharedInstance] setDefaultDatabase:@"testdb"];
		:
	[[TreasureData sharedInstance] addEventWithCallback:@{ @"event": @"clicked" } table:@"demotbl"]

Adding UUID of the device to each event automatically

UUID of the device will be added to each event automatically if you call enableAutoAppendUniqId. This value won't change until the application is uninstalled.

    [[TreasureData sharedInstance] enableAutoAppendUniqId];
		:
	[[TreasureData sharedInstance] addEventWithCallback:@{ @"event": @"dragged" }
												database:@"testdb" table:@"demotbl"];

It outputs the value as a column name td_uuid.

Adding an UUID to each event record automatically

UUID will be added to each event record automatically if you call enableAutoAppendRecordUUID. Each event has different UUID.

	[[TreasureData sharedInstance] enableAutoAppendRecordUUID];
	// If you want to customize the column name, pass it to the API
	// [[TreasureData sharedInstance] enableAutoAppendRecordUUID:@"my_record_uuid"];
		:
	[[TreasureData sharedInstance] addEventWithCallback:@{ @"event": @"dragged" }
												database:@"testdb" table:@"demotbl"];

It outputs the value as a column name record_uuid by default.

Adding the device model information to each event automatically

Device model infromation will be added to each event automatically if you call enableAutoAppendModelInformation.

    [[TreasureData sharedInstance] enableAutoAppendModelInformation];
		:
	[[TreasureData sharedInstance] addEventWithCallback:@{ @"event": @"dragged" }
												database:@"testdb" table:@"demotbl"];

It outputs the following column names and values:

  • td_device : UIDevice.model
  • td_model : UIDevice.model
  • td_os_ver : UIDevice.model.systemVersion
  • td_os_type : "iOS"

Adding application version information to each event automatically

Application version infromation will be added to each event automatically if you call enableAutoAppendAppInformation.

	[[TreasureData sharedInstance] enableAutoAppendAppInformation];

It outputs the following column names and values:

  • td_app_ver : Core Foundation key CFBundleShortVersionString
  • td_app_ver_num : Core Foundation key CFBundleVersion

Adding locale configuration information to each event automatically

Locale configuration infromation will be added to each event automatically if you call enableAutoAppendLocaleInformation.

    [[TreasureData sharedInstance] enableAutoAppendLocaleInformation];

It outputs the following column names and values:

  • td_locale_country : [[NSLocale currentLocale] objectForKey: NSLocaleCountryCode]
  • td_locale_lang : [[NSLocale currentLocale] objectForKey: NSLocaleLanguageCode]

Use server side upload timestamp

If you want to use server side upload timestamp not only client device time that is recorded when your application calls addEvent, use enableServerSideUploadTimestamp.

	// Use server side upload time as `time` column
	[[TreasureData sharedInstance] enableServerSideUploadTimestamp];
	
	// Add server side upload time as a customized column name
	[[TreasureData sharedInstance] enableServerSideUploadTimestamp:@"server_upload_time"];

Enable/Disable debug log

	[TreasureData enableLogging];
	[TreasureData disableLogging];

Troubleshooting

With "Data Protection" enabled, TD iOS SDK occasionally crashes

  • If your app calls the SDK's API such as TreasureData#endSession in UIApplicationDelegate applicationDidEnterBackground, check if it's likely the app calls the SDK's API several seconds after iOS is locked. If so, please make other tasks that takes time and is called prior to the SDK's API run in background.
- (void)applicationWillResignActive:(UIApplication *)application
{
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
        // Some tasks that can take more than 10 seconds.
    });
}

Usage in Swift

See this example project (https://github.com/treasure-data/td-ios-sdk/tree/master/TreasureDataExampleSwift) for details.