Move JSON serialization into the higher-level network call for PUT.

Mobile Buy SDK/Mobile Buy SDK/Data/BUYClient+Customers.m

@@ -132,7 +132,7 @@
 	if (self.customerToken) {
 		NSURLComponents *components = [self URLComponentsForTokenRenewalWithID:customerID];
 		
-		return [self putRequestForURL:components.URL body:nil completionHandler:^(NSDictionary *json, NSURLResponse *response, NSError *error) {
+		return [self putRequestForURL:components.URL object:nil completionHandler:^(NSDictionary *json, NSURLResponse *response, NSError *error) {
 			
 			NSString *accessToken = nil;
 			if (json && !error) {
@@ -156,9 +156,8 @@
 - (NSURLSessionDataTask *)activateCustomerWithCredentials:(BUYAccountCredentials *)credentials customerID:(NSString *)customerID customerToken:(NSString *)customerToken callback:(BUYDataCustomerTokenBlock)block
 {
 	NSURLComponents *components = [self URLComponentsForCustomerActivationWithID:customerID customerToken:customerToken];
-	NSData *data = [NSJSONSerialization dataWithJSONObject:credentials.JSONRepresentation options:0 error:nil];
 	
-	return [self putRequestForURL:components.URL body:data completionHandler:^(NSDictionary *json, NSURLResponse *response, NSError *error) {
+	return [self putRequestForURL:components.URL object:credentials.JSONRepresentation completionHandler:^(NSDictionary *json, NSURLResponse *response, NSError *error) {
 		NSString *email = json[@"customer"][@"email"];
 		if (email && !error) {
 			BUYAccountCredentialItem *emailItem = [BUYAccountCredentialItem itemWithEmail:email];
@@ -173,9 +172,8 @@
 - (NSURLSessionDataTask *)resetPasswordWithCredentials:(BUYAccountCredentials *)credentials customerID:(NSString *)customerID customerToken:(NSString *)customerToken callback:(BUYDataCustomerTokenBlock)block
 {
 	NSURLComponents *components = [self URLComponentsForCustomerPasswordResetWithCustomerID:customerID customerToken:customerToken];
-	NSData *data = [NSJSONSerialization dataWithJSONObject:credentials.JSONRepresentation options:0 error:nil];
 	
-	return [self putRequestForURL:components.URL body:data completionHandler:^(NSDictionary *json, NSURLResponse *response, NSError *error) {
+	return [self putRequestForURL:components.URL object:credentials.JSONRepresentation completionHandler:^(NSDictionary *json, NSURLResponse *response, NSError *error) {
 		NSString *email = json[@"customer"][@"email"];
 		if (email && !error) {
 			BUYAccountCredentialItem *emailItem = [BUYAccountCredentialItem itemWithEmail:email];

Mobile Buy SDK/Mobile Buy SDK/Data/BUYClient.m

@@ -583,10 +583,10 @@ NSString *const BUYClientCustomerAccessToken = @"X-Shopify-Customer-Access-Token
 
 - (NSURLSessionDataTask *)requestForURL:(NSURL *)url method:(NSString *)method object:(id <BUYSerializable>)object completionHandler:(void (^)(NSDictionary *json, NSURLResponse *response, NSError *error))completionHandler
 {
-	BUYAssert(object, @"Failed to perform request. id<BUYSerializable> must not be nil.");
-	
-	NSData *data = [NSJSONSerialization dataWithJSONObject:[object jsonDictionaryForCheckout] options:0 error:nil];
-	BUYAssert(data, @"Failed to perform request. Could not serialize object. Possibly invalid object.");
+	NSData *data = nil;
+	if (object) {
+		data = [NSJSONSerialization dataWithJSONObject:[object jsonDictionaryForCheckout] options:0 error:nil];
+	}
 	
 	return [self requestForURL:url method:method body:data completionHandler:completionHandler];
 }
@@ -645,9 +645,9 @@ NSString *const BUYClientCustomerAccessToken = @"X-Shopify-Customer-Access-Token
 	return [self requestForURL:url method:kPOST object:object completionHandler:completionHandler];
 }
 
-- (NSURLSessionDataTask *)putRequestForURL:(NSURL *)url body:(NSData *)body completionHandler:(void (^)(NSDictionary *json, NSURLResponse *response, NSError *error))completionHandler
+- (NSURLSessionDataTask *)putRequestForURL:(NSURL *)url object:(id<BUYSerializable>)object completionHandler:(void (^)(NSDictionary *json, NSURLResponse *response, NSError *error))completionHandler
 {
-	return [self requestForURL:url method:kPUT body:body completionHandler:completionHandler];
+	return [self requestForURL:url method:kPUT object:object completionHandler:completionHandler];
 }
 
 - (NSURLSessionDataTask *)postRequestForURL:(NSURL *)url body:(NSData *)body completionHandler:(void (^)(NSDictionary *json, NSURLResponse *response, NSError *error))completionHandler

Mobile Buy SDK/Mobile Buy SDK/Data/BUYClient_Internal.h

@@ -32,7 +32,7 @@ extern NSString *const kShopifyError;
 @interface BUYClient (Internal)
 
 - (NSURLSessionDataTask *)postRequestForURL:(NSURL *)url object:(id <BUYSerializable>)object completionHandler:(void (^)(NSDictionary *json, NSURLResponse *response, NSError *error))completionHandler;
-- (NSURLSessionDataTask *)putRequestForURL:(NSURL *)url body:(NSData *)body completionHandler:(void (^)(NSDictionary *json, NSURLResponse *response, NSError *error))completionHandler;
+- (NSURLSessionDataTask *)putRequestForURL:(NSURL *)url object:(id<BUYSerializable>)object completionHandler:(void (^)(NSDictionary *json, NSURLResponse *response, NSError *error))completionHandler;
 - (NSURLSessionDataTask *)getRequestForURL:(NSURL *)url completionHandler:(void (^)(NSDictionary *json, NSURLResponse *response, NSError *error))completionHandler;
 
 - (NSURLSessionDataTask *)requestForURL:(NSURL *)url method:(NSString *)method body:(NSData *)body additionalHeaders:(NSDictionary *)headers completionHandler:(void (^)(NSDictionary *json, NSURLResponse *response, NSError *error))completionHandler;