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PORestKit: How to batch multiple requests and get a response once they finish?
 

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  1. PORestKit: How to batch multiple requests and get a response once they finish?
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    <p>I just found out RestKit and it will be an important part of the app I'm doing. At the time, I was able to integrate it with the core data, but have not figured out the best way to send multiple GET requests.</p> <p>What I need to do is:</p> <p>Get data from the following addresses:</p> <pre><code>http://url.com/api/banner/ http://url.com/api/category/ http://url.com/api/link/ </code></pre> <p>The URL will always be in the following format: <a href="http://url.com/api/SOMETHING/" rel="noreferrer">http://url.com/api/SOMETHING/</a></p> <p>Once <em>all requests</em> are finished, I would like to run a code (such as calling a new view controller). What would be the best way to do this?</p> <p>At the moment, this is the code I'm using:</p> <pre><code>- (id)init { self = [super init]; if (self) { [self setupConnector]; [self setupDatabase]; [self setupMappings]; [self sendRequests]; } return self; } - (void)setupConnector { // Initialize RestKIT RKObjectManager *objectManager = [RKObjectManager managerWithBaseURL:[NSURL URLWithString:@"http://baseURL"]]; self.managedObjectStore = [[RKManagedObjectStore alloc] initWithManagedObjectModel:[[NLCoreData shared] managedObjectModel]]; objectManager.managedObjectStore = self.managedObjectStore; } - (void)setupDatabase { NSString *storePath = [[NLCoreData shared] storePath]; NSError *error = nil; NSPersistentStore *persistentStore = [self.managedObjectStore addSQLitePersistentStoreAtPath:storePath fromSeedDatabaseAtPath:nil withConfiguration:nil options:nil error:&amp;error]; NSAssert(persistentStore, @"Failed to add persistent store with error: %@", error); [self.managedObjectStore createManagedObjectContexts]; self.managedObjectStore.managedObjectCache = [[RKInMemoryManagedObjectCache alloc] initWithManagedObjectContext:self.managedObjectStore.persistentStoreManagedObjectContext]; } - (void)setupMappings { RKObjectManager *objectManager = [RKObjectManager sharedManager]; // Mappings // banner RKEntityMapping *bannerMapping = [RKEntityMapping mappingForEntityForName:@"Banner" inManagedObjectStore:self.managedObjectStore]; [bannerMapping addAttributeMappingsFromDictionary:@{ @"title": @"title", @"id": @"bannerID", @"created_at": @"created_at", @"image": @"image", @"resource_uri": @"resource_uri", @"updated_at": @"updated_at", @"url": @"url" }]; bannerMapping.identificationAttributes = @[ @"bannerID" ]; RKResponseDescriptor *bannerDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:bannerMapping pathPattern:@"/api/v1/banner/" keyPath:@"objects" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)]; [objectManager addResponseDescriptor:bannerDescriptor]; // category RKEntityMapping *categoryMapping = [RKEntityMapping mappingForEntityForName:@"Category" inManagedObjectStore:self.managedObjectStore]; [categoryMapping addAttributeMappingsFromDictionary:@{ @"name": @"name", @"id": @"categoryID", @"created_at": @"created_at", @"resource_uri": @"resource_uri", @"updated_at": @"updated_at", @"active": @"active" }]; categoryMapping.identificationAttributes = @[ @"categoryID" ]; RKResponseDescriptor *categoryDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:categoryMapping pathPattern:@"/api/v1/category/" keyPath:@"objects" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)]; [objectManager addResponseDescriptor:categoryDescriptor]; } - (void)sendRequests { RKObjectManager *objectManager = [RKObjectManager sharedManager]; // Send Request [objectManager getObjectsAtPath:@"/api/v1/banner/" parameters:nil success:^(RKObjectRequestOperation * operation, RKMappingResult *mappingResult) { NSLog(@"SUCCESS: %@", mappingResult.array); } failure: ^(RKObjectRequestOperation * operation, NSError * error) { NSLog(@"FAILURE %@", error); }]; // category [objectManager getObjectsAtPath:@"/api/v1/category/" parameters:nil success:^(RKObjectRequestOperation * operation, RKMappingResult *mappingResult) { NSLog(@"SUCCESS: %@", mappingResult.array); } failure: ^(RKObjectRequestOperation * operation, NSError * error) { NSLog(@"FAILURE %@", error); }]; } </code></pre> <p>Any tips?</p>
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