#import #if !TARGET_OS_OSX #import #else #import #endif #import "MixpanelPeople.h" #import "MixpanelType.h" #if defined(MIXPANEL_WATCHOS) #define MIXPANEL_FLUSH_IMMEDIATELY 1 #define MIXPANEL_NO_APP_LIFECYCLE_SUPPORT 1 #endif #if (defined(MIXPANEL_WATCHOS) || defined(MIXPANEL_MACOS)) #define MIXPANEL_NO_UIAPPLICATION_ACCESS 1 #endif #if (defined(MIXPANEL_TVOS) || defined(MIXPANEL_WATCHOS) || defined(MIXPANEL_MACOS)) #define MIXPANEL_NO_REACHABILITY_SUPPORT 1 #define MIXPANEL_NO_AUTOMATIC_EVENTS_SUPPORT 1 #define MIXPANEL_NO_NOTIFICATION_AB_TEST_SUPPORT 1 #define MIXPANEL_NO_CONNECT_INTEGRATION_SUPPORT 1 #endif @class MixpanelPeople; @class MixpanelGroup; @protocol MixpanelDelegate; NS_ASSUME_NONNULL_BEGIN /*! A string constant "mini" that respresent Mini Notification */ extern NSString *const MPNotificationTypeMini; /*! A string constant "takeover" that respresent Takeover Notification */ extern NSString *const MPNotificationTypeTakeover; /*! Mixpanel API. The primary interface for integrating Mixpanel with your app. Use the Mixpanel class to set up your project and track events in Mixpanel Engagement. It now also includes a people property for accessing the Mixpanel People API. 
 // Initialize the API
 Mixpanel *mixpanel = [Mixpanel sharedInstanceWithToken:@"YOUR API TOKEN"];

 // Track an event in Mixpanel Engagement
 [mixpanel track:@"Button Clicked"];

 // Set properties on a user in Mixpanel People
 [mixpanel identify:@"CURRENT USER DISTINCT ID"];
 [mixpanel.people set:@"Plan" to:@"Premium"];
For more advanced usage, please see the Mixpanel iPhone Library Guide. */ @interface Mixpanel : NSObject #pragma mark Properties /*! Accessor to the Mixpanel People API object. See the documentation for MixpanelDelegate below for more information. */ @property (atomic, readonly, strong) MixpanelPeople *people; /*! The distinct ID of the current user. A distinct ID is a string that uniquely identifies one of your users. By default, we'll use the device's advertisingIdentifier UUIDString, if that is not available we'll use the device's identifierForVendor UUIDString, and finally if that is not available we will generate a new random UUIDString. To change the current distinct ID, use the identify: method. */ @property (atomic, readonly, copy) NSString *distinctId; /*! The default anonymous Id / distinct Id given to the events before identify. A default distinct ID is a string that uniquely identifies the anonymous activity. By default, we'll use the device's advertisingIdentifier UUIDString, if that is not available we'll use the device's identifierForVendor UUIDString, and finally if that is not available we will generate a new random UUIDString. */ @property (atomic, readonly, copy) NSString *anonymousId; /*! The user ID with which identify: is called with. This is null until identify: is called and is set to the id with which identify is called with. */ @property (atomic, readonly, copy) NSString *userId; /*! The alias of the current user. An alias is another string that uniquely identifies one of your users. Typically, this is the user ID from your database. By using an alias you can link pre- and post-sign up activity as well as cross-platform activity under one distinct ID. To set the alias use the createAlias:forDistinctID: method. */ @property (atomic, readonly, copy) NSString *alias; /*! A flag which says if a distinctId is already in peristence from old sdk Defaults to NO. */ @property (atomic) BOOL hadPersistedDistinctId; /*! The base URL used for Mixpanel API requests. Useful if you need to proxy Mixpanel requests. Defaults to https://api.mixpanel.com. */ @property (nonatomic, copy) NSString *serverURL; /*! Flush timer's interval. Setting a flush interval of 0 will turn off the flush timer. */ @property (atomic) NSUInteger flushInterval; /*! Control whether the library should flush data to Mixpanel when the app enters the background. Defaults to YES. Only affects apps targeted at iOS 4.0, when background task support was introduced, and later. */ @property (atomic) BOOL flushOnBackground; /*! Controls whether to show spinning network activity indicator when flushing data to the Mixpanel servers. Defaults to YES. */ @property (atomic) BOOL shouldManageNetworkActivityIndicator; /*! Controls whether to automatically check for notifications for the currently identified user when the application becomes active. Defaults to YES. Will fire a network request on applicationDidBecomeActive to retrieve a list of valid notifications for the currently identified user. */ @property (atomic) BOOL checkForNotificationsOnActive; /*! Controls whether to automatically check for A/B test variants for the currently identified user when the application becomes active. Defaults to YES. Will fire a network request on applicationDidBecomeActive to retrieve a list of valid variants for the currently identified user. */ @property (atomic) BOOL checkForVariantsOnActive; /*! Controls whether to automatically check for and show in-app notifications for the currently identified user when the application becomes active. Defaults to YES. */ @property (atomic) BOOL showNotificationOnActive; /*! Controls whether to automatically send the client IP Address as part of event tracking. With an IP address, geo-location is possible down to neighborhoods within a city, although the Mixpanel Dashboard will just show you city level location specificity. For privacy reasons, you may be in a situation where you need to forego effectively having access to such granular location information via the IP Address. Defaults to YES. */ @property (atomic) BOOL useIPAddressForGeoLocation; /*! Controls whether to enable the visual test designer for A/B testing and codeless on mixpanel.com. You will be unable to edit A/B tests and codeless events with this disabled, however *previously* created A/B tests and codeless events will still be delivered. Defaults to YES. */ @property (atomic) BOOL enableVisualABTestAndCodeless; /*! Controls whether to enable the run time debug logging at all levels. Note that the Mixpanel SDK uses Apple System Logging to forward log messages to `STDERR`, this also means that mixpanel logs are segmented by log level. Settings this to `YES` will enable Mixpanel logging at the following levels: * Error - Something has failed * Warning - Something is amiss and might fail if not corrected * Info - The lowest priority that is normally logged, purely informational in nature * Debug - Information useful only to developers, and normally not logged. Defaults to NO. */ @property (atomic) BOOL enableLogging; /*! Determines the time, in seconds, that a mini notification will remain on the screen before automatically hiding itself. Defaults to 6.0. */ @property (atomic) CGFloat miniNotificationPresentationTime; #if !MIXPANEL_NO_AUTOMATIC_EVENTS_SUPPORT /*! The minimum session duration (ms) that is tracked in automatic events. The default value is 10000 (10 seconds). */ @property (atomic) UInt64 minimumSessionDuration; /*! The maximum session duration (ms) that is tracked in automatic events. The default value is UINT64_MAX (no maximum session duration). */ @property (atomic) UInt64 maximumSessionDuration; #endif /*! The a MixpanelDelegate object that can be used to assert fine-grain control over Mixpanel network activity. Using a delegate is optional. See the documentation for MixpanelDelegate below for more information. */ @property (atomic, weak) id delegate; // allows fine grain control over uploading (optional) #pragma mark Tracking /*! Returns (and creates, if needed) a singleton instance of the API. This method will return a singleton instance of the Mixpanel class for you using the given project token. If an instance does not exist, this method will create one using initWithToken:launchOptions:andFlushInterval:. If you only have one instance in your project, you can use sharedInstance to retrieve it. 
 [Mixpanel sharedInstance] track:@"Something Happened"]];
If you are going to use this singleton approach, sharedInstanceWithToken: must be the first call to the Mixpanel class, since it performs important initializations to the API. @param apiToken your project token */ + (Mixpanel *)sharedInstanceWithToken:(NSString *)apiToken; /*! Initializes a singleton instance of the API, uses it to set whether or not to opt out tracking for GDPR compliance, and then returns it. This is the preferred method for creating a sharedInstance with a mixpanel like above. With the optOutTrackingByDefault parameter, Mixpanel tracking can be opted out by default. @param apiToken your project token @param optOutTrackingByDefault whether or not to be opted out from tracking by default */ + (Mixpanel *)sharedInstanceWithToken:(NSString *)apiToken optOutTrackingByDefault:(BOOL)optOutTrackingByDefault; /*! Initializes a singleton instance of the API, uses it to track launchOptions information, and then returns it. This is the preferred method for creating a sharedInstance with a mixpanel like above. With the launchOptions parameter, Mixpanel can track referral information created by push notifications. @param apiToken your project token @param launchOptions your application delegate's launchOptions */ + (Mixpanel *)sharedInstanceWithToken:(NSString *)apiToken launchOptions:(nullable NSDictionary *)launchOptions; /*! Initializes a singleton instance of the API, uses it to track launchOptions information, and then returns it. This is the preferred method for creating a sharedInstance with a mixpanel like above. With the trackCrashes and automaticPushTracking parameter, Mixpanel can track crashes and automatic push. @param apiToken your project token @param launchOptions your application delegate's launchOptions @param trackCrashes whether or not to track crashes in Mixpanel. may want to disable if you're seeing issues with your crash reporting for either signals or exceptions @param automaticPushTracking whether or not to automatically track pushes sent from Mixpanel */ + (Mixpanel *)sharedInstanceWithToken:(NSString *)apiToken launchOptions:(nullable NSDictionary *)launchOptions trackCrashes:(BOOL)trackCrashes automaticPushTracking:(BOOL)automaticPushTracking; /*! Initializes a singleton instance of the API, uses it to track launchOptions information, and then returns it. This is the preferred method for creating a sharedInstance with a mixpanel like above. With the optOutTrackingByDefault parameter, Mixpanel tracking can be opted out by default. @param apiToken your project token @param launchOptions your application delegate's launchOptions @param trackCrashes whether or not to track crashes in Mixpanel. may want to disable if you're seeing issues with your crash reporting for either signals or exceptions @param automaticPushTracking whether or not to automatically track pushes sent from Mixpanel @param optOutTrackingByDefault whether or not to be opted out from tracking by default */ + (Mixpanel *)sharedInstanceWithToken:(NSString *)apiToken launchOptions:(nullable NSDictionary *)launchOptions trackCrashes:(BOOL)trackCrashes automaticPushTracking:(BOOL)automaticPushTracking optOutTrackingByDefault:(BOOL)optOutTrackingByDefault; /*! Returns a previously instantiated singleton instance of the API. The API must be initialized with sharedInstanceWithToken: or initWithToken:launchOptions:andFlushInterval before calling this class method. This method will return nil if there are no instances created. If there is more than one instace, it will return the first one that was created by using sharedInstanceWithToken: or initWithToken:launchOptions:andFlushInterval:. */ + (nullable Mixpanel *)sharedInstance; /*! Initializes an instance of the API with the given project token. This also sets it as a shared instance so you can use sharedInstance or sharedInstanceWithToken: to retrieve this object later. Creates and initializes a new API object. See also sharedInstanceWithToken:. @param apiToken your project token @param launchOptions optional app delegate launchOptions @param flushInterval interval to run background flushing @param trackCrashes whether or not to track crashes in Mixpanel. may want to disable if you're seeing issues with your crash reporting for either signals or exceptions */ - (instancetype)initWithToken:(NSString *)apiToken launchOptions:(nullable NSDictionary *)launchOptions flushInterval:(NSUInteger)flushInterval trackCrashes:(BOOL)trackCrashes; /*! Initializes an instance of the API with the given project token. This also sets it as a shared instance so you can use sharedInstance or sharedInstanceWithToken: to retrieve this object later. Creates and initializes a new API object. See also sharedInstanceWithToken:. @param apiToken your project token @param launchOptions optional app delegate launchOptions @param flushInterval interval to run background flushing @param trackCrashes whether or not to track crashes in Mixpanel. may want to disable if you're seeing issues with your crash reporting for either signals or exceptions @param automaticPushTracking whether or not to automatically track pushes sent from Mixpanel */ - (instancetype)initWithToken:(NSString *)apiToken launchOptions:(nullable NSDictionary *)launchOptions flushInterval:(NSUInteger)flushInterval trackCrashes:(BOOL)trackCrashes automaticPushTracking:(BOOL)automaticPushTracking; /*! Initializes an instance of the API with the given project token. Creates and initializes a new API object. See also sharedInstanceWithToken:. @param apiToken your project token @param launchOptions optional app delegate launchOptions @param flushInterval interval to run background flushing */ - (instancetype)initWithToken:(NSString *)apiToken launchOptions:(nullable NSDictionary *)launchOptions andFlushInterval:(NSUInteger)flushInterval; /*! Initializes an instance of the API with the given project token. Supports for the old initWithToken method format but really just passes launchOptions to the above method as nil. @param apiToken your project token @param flushInterval interval to run background flushing */ - (instancetype)initWithToken:(NSString *)apiToken andFlushInterval:(NSUInteger)flushInterval; /*! Sets the distinct ID of the current user. As of version 2.3.1, Mixpanel will choose a default distinct ID based on whether you are using the AdSupport.framework or not. If you are not using the AdSupport Framework (iAds), then we use the [UIDevice currentDevice].identifierForVendor (IFV) string as the default distinct ID. This ID will identify a user across all apps by the same vendor, but cannot be used to link the same user across apps from different vendors. If you are showing iAds in your application, you are allowed use the iOS ID for Advertising (IFA) to identify users. If you have this framework in your app, Mixpanel will use the IFA as the default distinct ID. If you have AdSupport installed but still don't want to use the IFA, you can define the MIXPANEL_NO_IFA preprocessor flag in your build settings, and Mixpanel will use the IFV as the default distinct ID. If we are unable to get an IFA or IFV, we will fall back to generating a random persistent UUID. For tracking events, you do not need to call identify: if you want to use the default. However, Mixpanel People always requires an explicit call to identify:. If calls are made to set:, increment or other MixpanelPeople methods prior to calling identify:, then they are queued up and flushed once identify: is called. If you'd like to use the default distinct ID for Mixpanel People as well (recommended), call identify: using the current distinct ID: [mixpanel identify:mixpanel.distinctId]. @param distinctId string that uniquely identifies the current user */ - (void)identify:(NSString *)distinctId; /*! Sets the distinct ID of the current user. With the option of only updating the distinct ID value and not the Mixpanel People distinct ID. This method is not intended to be used unless you wish to prevent updating the Mixpanel People distinct ID value by passing a value of NO to the usePeople param. This can be useful if the user wishes to prevent People updates from being sent until the identify method is called. @param distinctId string that uniquely identifies the current user @param usePeople bool controls whether or not to set the people distinctId to the event distinctId */ - (void)identify:(NSString *)distinctId usePeople:(BOOL)usePeople; /*! Add a group to this user's membership for a particular group key. The groupKey must be an NSString. The groupID should be a legal MixpanelType value. @param groupKey the group key @param groupID the group ID */ - (void)addGroup:(NSString *)groupKey groupID:(id)groupID; /*! Remove a group from this user's membership for a particular group key. The groupKey must be an NSString. The groupID should be a legal MixpanelType value. @param groupKey the group key @param groupID the group ID */ - (void)removeGroup:(NSString *)groupKey groupID:(id)groupID; /*! Set the group to which the user belongs. The groupKey must be an NSString. The groupID should be an array of MixpanelTypes. @param groupKey the group key @param groupIDs the group IDs */ - (void)setGroup:(NSString *)groupKey groupIDs:(NSArray> *)groupIDs; /*! Convenience method to set a single group ID for the current user. @param groupKey the group key @param groupID the group ID */ - (void)setGroup:(NSString *)groupKey groupID:(id)groupID; /*! Tracks an event with specific groups. Similar to track(), the data will also be sent to the specific group datasets. Group key/value pairs are upserted into the property map before tracking. The keys in groups must be NSString objects. values can be any legal MixpanelType objects. If the event is being timed, the timer will stop and be added as a property. @param event event name @param properties properties dictionary @param groups groups dictionary, which contains key-value pairs for this event */ - (void)trackWithGroups:(NSString *)event properties:(NSDictionary *)properties groups:(NSDictionary *)groups; /*! Get a MixpanelGroup identifier from groupKey and groupID. The groupKey must be an NSString. The groupID should be a legal MixpanelType value. @param groupKey the group key @param groupID the group ID */ - (MixpanelGroup *)getGroup:(NSString *)groupKey groupID:(id)groupID; /*! Tracks an event. @param event event name */ - (void)track:(NSString *)event; /*! Tracks an event with properties. Properties will allow you to segment your events in your Mixpanel reports. Property keys must be NSString objects and values must be NSString, NSNumber, NSNull, NSArray, NSDictionary, NSDate or NSURL objects. If the event is being timed, the timer will stop and be added as a property. @param event event name @param properties properties dictionary */ - (void)track:(NSString *)event properties:(nullable NSDictionary *)properties; /*! Registers super properties, overwriting ones that have already been set. Super properties, once registered, are automatically sent as properties for all event tracking calls. They save you having to maintain and add a common set of properties to your events. Property keys must be NSString objects and values must be NSString, NSNumber, NSNull, NSArray, NSDictionary, NSDate or NSURL objects. @param properties properties dictionary */ - (void)registerSuperProperties:(NSDictionary *)properties; /*! Registers super properties without overwriting ones that have already been set. Property keys must be NSString objects and values must be NSString, NSNumber, NSNull, NSArray, NSDictionary, NSDate or NSURL objects. @param properties properties dictionary */ - (void)registerSuperPropertiesOnce:(NSDictionary *)properties; /*! Registers super properties without overwriting ones that have already been set unless the existing value is equal to defaultValue. Property keys must be NSString objects and values must be NSString, NSNumber, NSNull, NSArray, NSDictionary, NSDate or NSURL objects. @param properties properties dictionary @param defaultValue overwrite existing properties that have this value */ - (void)registerSuperPropertiesOnce:(NSDictionary *)properties defaultValue:(nullable id)defaultValue; /*! Removes a previously registered super property. As an alternative to clearing all properties, unregistering specific super properties prevents them from being recorded on future events. This operation does not affect the value of other super properties. Any property name that is not registered is ignored. Note that after removing a super property, events will show the attribute as having the value undefined in Mixpanel until a new value is registered. @param propertyName array of property name strings to remove */ - (void)unregisterSuperProperty:(NSString *)propertyName; /*! Clears all currently set super properties. */ - (void)clearSuperProperties; /*! Returns the currently set super properties. */ - (NSDictionary *)currentSuperProperties; /*! Starts a timer that will be stopped and added as a property when a corresponding event is tracked. This method is intended to be used in advance of events that have a duration. For example, if a developer were to track an "Image Upload" event she might want to also know how long the upload took. Calling this method before the upload code would implicitly cause the track call to record its duration. 
 // begin timing the image upload
 [mixpanel timeEvent:@"Image Upload"];

 // upload the image
 [self uploadImageWithSuccessHandler:^{

    // track the event
    [mixpanel track:@"Image Upload"];
 }];
@param event a string, identical to the name of the event that will be tracked */ - (void)timeEvent:(NSString *)event; /*! Retrieves the time elapsed for the named event since timeEvent: was called. @param event the name of the event to be tracked that was passed to timeEvent: */ - (double)eventElapsedTime:(NSString *)event; /*! Clears all current event timers. */ - (void)clearTimedEvents; /*! Clears all stored properties and distinct IDs. Useful if your app's user logs out. */ - (void)reset; /*! Uploads queued data to the Mixpanel server. By default, queued data is flushed to the Mixpanel servers every minute (the default for flushInterval), and on background (since flushOnBackground is on by default). You only need to call this method manually if you want to force a flush at a particular moment. */ - (void)flush; /*! Calls flush, then optionally archives and calls a handler when finished. When calling flush manually, it is sometimes important to verify that the flush has finished before further action is taken. This is especially important when the app is in the background and could be suspended at any time if protocol is not followed. Delegate methods like application:didReceiveRemoteNotification:fetchCompletionHandler: are called when an app is brought to the background and require a handler to be called when it finishes. @param handler completion handler to be called after flush completes */ - (void)flushWithCompletion:(nullable void (^)(void))handler; /*! Writes current project info, including distinct ID, super properties and pending event and People record queues to disk. This state will be recovered when the app is launched again if the Mixpanel library is initialized with the same project token. You do not need to call this method. The library listens for app state changes and handles persisting data as needed. It can be useful in some special circumstances, though, for example, if you'd like to track app crashes from main.m. */ - (void)archive; /*! Creates a distinct_id alias from alias to original id. This method is used to map an identifier called an alias to the existing Mixpanel distinct id. This causes all events and people requests sent with the alias to be mapped back to the original distinct id. The recommended usage pattern is to call createAlias: and then identify: (with their new user ID) when they log in the next time. This will keep your signup funnels working correctly. 
 // This makes the current ID (an auto-generated GUID)
 // and 'Alias' interchangeable distinct ids.
 [mixpanel createAlias:@"Alias"
    forDistinctID:mixpanel.distinctId];

 // You must call identify if you haven't already
 // (e.g., when your app launches).
 [mixpanel identify:mixpanel.distinctId];
@param alias the new distinct_id that should represent original @param distinctID the old distinct_id that alias will be mapped to */ - (void)createAlias:(NSString *)alias forDistinctID:(NSString *)distinctID; /*! Creates a distinct_id alias from alias to original id. This method is not intended to be used unless you wish to prevent updating the Mixpanel People distinct ID value by passing a value of NO to the usePeople param. This can be useful if the user wishes to prevent People updates from being sent until the identify method is called. @param alias the new distinct_id that should represent original @param distinctID the old distinct_id that alias will be mapped to @param usePeople bool controls whether or not to set the people distinctId to the event distinctId */ - (void)createAlias:(NSString *)alias forDistinctID:(NSString *)distinctID usePeople:(BOOL)usePeople; /*! Returns the Mixpanel library version number as a string, e.g. "3.2.3". */ - (NSString *)libVersion; /*! Opt out tracking. This method is used to opt out tracking. This causes all events and people request no longer to be sent back to the Mixpanel server. */ - (void)optOutTracking; /*! Opt in tracking. Use this method to opt in an already opted out user from tracking. People updates and track calls will be sent to Mixpanel after using this method. This method will internally track an opt in event to your project. If you want to identify the opt-in event and/or pass properties to the event, See also optInTrackingForDistinctId: and optInTrackingForDistinctId:withEventProperties:. */ - (void)optInTracking; /*! Opt in tracking. Use this method to opt in an already opted out user from tracking. People updates and track calls will be sent to Mixpanel after using this method. This method will internally track an opt in event to your project. If you want to pass properties to the event, see also optInTrackingForDistinctId:withEventProperties:. @param distinctID optional string to use as the distinct ID for events. This will call identify:. If you use people profiles make sure you manually call identify: after this method. */ - (void)optInTrackingForDistinctID:(nullable NSString *)distinctID; /*! Opt in tracking. Use this method to opt in an already opted out user from tracking. People updates and track calls will be sent to Mixpanel after using this method. This method will internally track an opt in event to your project.See also optInTracking or optInTrackingForDistinctId:. @param distinctID optional string to use as the distinct ID for events. This will call identify:. If you use people profiles make sure you manually call identify: after this method. @param properties optional properties dictionary that could be passed to add properties to the opt-in event that is sent to Mixpanel. */ - (void)optInTrackingForDistinctID:(nullable NSString *)distinctID withEventProperties:(nullable NSDictionary *)properties; /*! Returns YES if the current user has opted out tracking, NO if the current user has opted in tracking. */ - (BOOL)hasOptedOutTracking; /*! Returns the Mixpanel library version number as a string, e.g. "3.2.3". */ + (NSString *)libVersion; #if !MIXPANEL_NO_NOTIFICATION_AB_TEST_SUPPORT #pragma mark - Mixpanel Notifications /*! Shows the notification of the given id. You do not need to call this method on the main thread. @param ID notification id */ - (void)showNotificationWithID:(NSUInteger)ID; /*! Shows a notification with the given type if one is available. You do not need to call this method on the main thread. @param type The type of notification to show, either @"mini", or @"takeover" */ - (void)showNotificationWithType:(NSString *)type; /*! Shows a notification if one is available. You do not need to call this method on the main thread. */ - (void)showNotification; #pragma mark - Mixpanel A/B Testing /*! Join any experiments (A/B tests) that are available for the current user. Mixpanel will check for A/B tests automatically when your app enters the foreground. Call this method if you would like to to check for, and join, any experiments are newly available for the current user. You do not need to call this method on the main thread. */ - (void)joinExperiments; /*! Join any experiments (A/B tests) that are available for the current user. Same as joinExperiments but will fire the given callback after all experiments have been loaded and applied. @param experimentsLoadedCallback callback to be called after experiments joined and applied */ - (void)joinExperimentsWithCallback:(nullable void (^)(void))experimentsLoadedCallback; #endif // MIXPANEL_NO_NOTIFICATION_AB_TEST_SUPPORT #pragma mark - Deprecated /*! Current user's name in Mixpanel Streams. */ @property (nullable, atomic, copy) NSString *nameTag __deprecated; // Deprecated in v3.0.1 @end /*! @protocol Delegate protocol for controlling the Mixpanel API's network behavior. Creating a delegate for the Mixpanel object is entirely optional. It is only necessary when you want full control over when data is uploaded to the server, beyond simply calling stop: and start: before and after a particular block of your code. */ @protocol MixpanelDelegate @optional /*! Asks the delegate if data should be uploaded to the server. Return YES to upload now, NO to defer until later. @param mixpanel Mixpanel API instance */ - (BOOL)mixpanelWillFlush:(Mixpanel *)mixpanel; @end NS_ASSUME_NONNULL_END