From 0a652a3d1344b3534fdc1d871773a025d782f30e Mon Sep 17 00:00:00 2001
From: geekerzp <geekerzp@gmail.com>
Date: Thu, 25 Jun 2015 11:45:38 +0800
Subject: [PATCH] Fix issue#896
 https://github.com/swagger-api/swagger-codegen/issues/896

---
 .../codegen/languages/ObjcClientCodegen.java  |   7 +-
 .../resources/objc/SWGApiClient-body.mustache |  18 +-
 .../objc/SWGApiClient-header.mustache         |   3 +-
 .../SWGJSONRequestSerializer-body.mustache    |  35 ++++
 .../SWGJSONRequestSerializer-header.mustache  |   5 +
 .../src/main/resources/objc/api-body.mustache |  48 +++--
 .../UserInterfaceState.xcuserstate            | Bin 16336 -> 22901 bytes
 .../SwaggerClient.xcodeproj/project.pbxproj   |  18 ++
 .../SwaggerClient/ViewController.m            |  55 ++----
 .../petstore/objc/client/SWGApiClient.h       |   3 +-
 .../petstore/objc/client/SWGApiClient.m       |  18 +-
 .../objc/client/SWGJSONRequestSerializer.h    |   5 +
 .../objc/client/SWGJSONRequestSerializer.m    |  35 ++++
 .../client/petstore/objc/client/SWGOrder.h    |   2 +-
 .../client/petstore/objc/client/SWGPetApi.m   | 146 +++++++---------
 .../client/petstore/objc/client/SWGStoreApi.m |  58 +++----
 .../client/petstore/objc/client/SWGUserApi.m  | 164 +++++++-----------
 17 files changed, 311 insertions(+), 309 deletions(-)
 create mode 100644 modules/swagger-codegen/src/main/resources/objc/SWGJSONRequestSerializer-body.mustache
 create mode 100644 modules/swagger-codegen/src/main/resources/objc/SWGJSONRequestSerializer-header.mustache
 create mode 100644 samples/client/petstore/objc/client/SWGJSONRequestSerializer.h
 create mode 100644 samples/client/petstore/objc/client/SWGJSONRequestSerializer.m

diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/ObjcClientCodegen.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/ObjcClientCodegen.java
index 03905cbdfaf..5bfc5e59339 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/ObjcClientCodegen.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/ObjcClientCodegen.java
@@ -70,14 +70,15 @@ public class ObjcClientCodegen extends DefaultCodegen implements CodegenConfig {
                         "double", "protocol", "interface", "implementation",
                         "NSObject", "NSInteger", "NSNumber", "CGFloat",
                         "property", "nonatomic", "retain", "strong",
-                        "weak", "unsafe_unretained", "readwrite", "readonly"
+                        "weak", "unsafe_unretained", "readwrite", "readonly",
+                        "description"
                 ));
 
         typeMapping = new HashMap<String, String>();
         typeMapping.put("enum", "NSString");
         typeMapping.put("Date", "NSDate");
         typeMapping.put("DateTime", "NSDate");
-        typeMapping.put("boolean", "BOOL");
+        typeMapping.put("boolean", "NSNumber");
         typeMapping.put("string", "NSString");
         typeMapping.put("integer", "NSNumber");
         typeMapping.put("int", "NSNumber");
@@ -147,6 +148,8 @@ public class ObjcClientCodegen extends DefaultCodegen implements CodegenConfig {
         supportingFiles.add(new SupportingFile("SWGApiClient-body.mustache", sourceFolder, "SWGApiClient.m"));
         supportingFiles.add(new SupportingFile("SWGJSONResponseSerializer-header.mustache", sourceFolder, "SWGJSONResponseSerializer.h"));
         supportingFiles.add(new SupportingFile("SWGJSONResponseSerializer-body.mustache", sourceFolder, "SWGJSONResponseSerializer.m"));
+        supportingFiles.add(new SupportingFile("SWGJSONRequestSerializer-body.mustache", sourceFolder, "SWGJSONRequestSerializer.m"));
+        supportingFiles.add(new SupportingFile("SWGJSONRequestSerializer-header.mustache", sourceFolder, "SWGJSONRequestSerializer.h"));
         supportingFiles.add(new SupportingFile("SWGFile.h", sourceFolder, "SWGFile.h"));
         supportingFiles.add(new SupportingFile("SWGFile.m", sourceFolder, "SWGFile.m"));
         supportingFiles.add(new SupportingFile("JSONValueTransformer+ISO8601.m", sourceFolder, "JSONValueTransformer+ISO8601.m"));
diff --git a/modules/swagger-codegen/src/main/resources/objc/SWGApiClient-body.mustache b/modules/swagger-codegen/src/main/resources/objc/SWGApiClient-body.mustache
index 1b479d039e6..d7e6fac8385 100644
--- a/modules/swagger-codegen/src/main/resources/objc/SWGApiClient-body.mustache
+++ b/modules/swagger-codegen/src/main/resources/objc/SWGApiClient-body.mustache
@@ -486,7 +486,7 @@ static bool loggingEnabled = true;
                          completionBlock: (void (^)(id, NSError *))completionBlock {
     // setting request serializer
     if ([requestContentType isEqualToString:@"application/json"]) {
-        self.requestSerializer = [AFJSONRequestSerializer serializer];
+        self.requestSerializer = [SWGJSONRequestSerializer serializer];
     }
     else if ([requestContentType isEqualToString:@"application/x-www-form-urlencoded"]) {
         self.requestSerializer = [AFHTTPRequestSerializer serializer];
@@ -569,9 +569,11 @@ static bool loggingEnabled = true;
                                                  parameters: body
                                                       error: nil];
     }
+  
     BOOL hasHeaderParams = false;
-    if(headerParams != nil && [headerParams count] > 0)
+    if(headerParams != nil && [headerParams count] > 0) {
         hasHeaderParams = true;
+    }
     if(offlineState) {
         NSLog(@"%@ cache forced", path);
         [request setCachePolicy:NSURLRequestReturnCacheDataDontLoad];
@@ -585,17 +587,7 @@ static bool loggingEnabled = true;
         [request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
     }
 
-
-    if(body != nil) {
-        if([body isKindOfClass:[NSDictionary class]] || [body isKindOfClass:[NSArray class]]){
-            [self.requestSerializer setValue:requestContentType forHTTPHeaderField:@"Content-Type"];
-        }
-        else if ([body isKindOfClass:[SWGFile class]]){}
-        else {
-            NSAssert(false, @"unsupported post type!");
-        }
-    }
-    if(headerParams != nil){
+    if(hasHeaderParams){
         for(NSString * key in [headerParams keyEnumerator]){
             [request setValue:[headerParams valueForKey:key] forHTTPHeaderField:key];
         }
diff --git a/modules/swagger-codegen/src/main/resources/objc/SWGApiClient-header.mustache b/modules/swagger-codegen/src/main/resources/objc/SWGApiClient-header.mustache
index 691c92cc625..d4bc3e3b81d 100644
--- a/modules/swagger-codegen/src/main/resources/objc/SWGApiClient-header.mustache
+++ b/modules/swagger-codegen/src/main/resources/objc/SWGApiClient-header.mustache
@@ -1,7 +1,8 @@
 #import <Foundation/Foundation.h>
 #import <ISO8601/ISO8601.h>
 #import "AFHTTPRequestOperationManager.h"
-#import "SWGJSONResponseSerializer.h"  
+#import "SWGJSONResponseSerializer.h"
+#import "SWGJSONRequestSerializer.h"  
 
 {{#models}}{{#model}}#import "{{classname}}.h"  
 {{/model}}{{/models}}
diff --git a/modules/swagger-codegen/src/main/resources/objc/SWGJSONRequestSerializer-body.mustache b/modules/swagger-codegen/src/main/resources/objc/SWGJSONRequestSerializer-body.mustache
new file mode 100644
index 00000000000..631a20a5a6e
--- /dev/null
+++ b/modules/swagger-codegen/src/main/resources/objc/SWGJSONRequestSerializer-body.mustache
@@ -0,0 +1,35 @@
+#import "SWGJSONRequestSerializer.h"
+
+@implementation SWGJSONRequestSerializer
+
+///
+/// When customize a request serializer,
+/// the serializer must conform the protocol `AFURLRequestSerialization`
+/// and implements the protocol method `requestBySerializingRequest:withParameters:error:`
+///
+/// @param request    The original request.
+/// @param parameters The parameters to be encoded.
+/// @param error      The error that occurred while attempting to encode the request parameters.
+///
+/// @return A serialized request.
+///
+- (NSURLRequest *)requestBySerializingRequest:(NSURLRequest *)request
+                               withParameters:(id)parameters
+                                        error:(NSError *__autoreleasing *)error
+{
+    // If the body data which will be serialized isn't NSArray or NSDictionary
+    // then put the data in the http request body directly.
+    if ([parameters isKindOfClass:[NSArray class]] || [parameters isKindOfClass:[NSDictionary class]]) {
+        return [super requestBySerializingRequest:request withParameters:parameters error:error];
+    } else {
+        NSMutableURLRequest *mutableRequest = [request mutableCopy];
+        
+        if (parameters) {
+            [mutableRequest setHTTPBody:[parameters dataUsingEncoding:self.stringEncoding]];
+        }
+        
+        return mutableRequest;
+    }
+}
+
+@end
diff --git a/modules/swagger-codegen/src/main/resources/objc/SWGJSONRequestSerializer-header.mustache b/modules/swagger-codegen/src/main/resources/objc/SWGJSONRequestSerializer-header.mustache
new file mode 100644
index 00000000000..49dd7fca3e2
--- /dev/null
+++ b/modules/swagger-codegen/src/main/resources/objc/SWGJSONRequestSerializer-header.mustache
@@ -0,0 +1,5 @@
+#import <Foundation/Foundation.h>
+#import <AFNetworking/AFURLRequestSerialization.h>
+
+@interface SWGJSONRequestSerializer : AFJSONRequestSerializer
+@end
diff --git a/modules/swagger-codegen/src/main/resources/objc/api-body.mustache b/modules/swagger-codegen/src/main/resources/objc/api-body.mustache
index 29dca1f4a7a..5bebfa063c2 100644
--- a/modules/swagger-codegen/src/main/resources/objc/api-body.mustache
+++ b/modules/swagger-codegen/src/main/resources/objc/api-body.mustache
@@ -89,7 +89,9 @@ static NSString * basePath = @"{{basePath}}";
 
     {{#allParams}}{{#required}}
     // verify the required parameter '{{paramName}}' is set
-    NSAssert({{paramName}} != nil, @"Missing the required parameter `{{paramName}}` when calling {{nickname}}");
+    if ({{paramName}} == nil) {
+        [NSException raise:@"Invalid parameter" format:@"Missing the required parameter `{{paramName}}` when calling `{{nickname}}`"];
+    }
     {{/required}}{{/allParams}}
 
     NSMutableString* requestUrl = [NSMutableString stringWithFormat:@"%@{{path}}", basePath];
@@ -135,14 +137,14 @@ static NSString * basePath = @"{{basePath}}";
 
     // Authentication setting
     NSArray *authSettings = @[{{#authMethods}}@"{{name}}"{{#hasMore}}, {{/hasMore}}{{/authMethods}}];
-    
-    id bodyDictionary = nil;
-    {{#bodyParam}}
-    id __body = {{paramName}};
 
-    if(__body != nil && [__body isKindOfClass:[NSArray class]]){
-        NSMutableArray * objs = [[NSMutableArray alloc] init];
-        for (id dict in (NSArray*)__body) {
+    id bodyParam = nil;
+    {{#bodyParam}}
+    bodyParam = {{paramName}};
+
+    if(bodyParam != nil && [bodyParam isKindOfClass:[NSArray class]]){
+        NSMutableArray *objs = [[NSMutableArray alloc] init];
+        for (id dict in (NSArray*)bodyParam) {
             if([dict respondsToSelector:@selector(toDictionary)]) {
                 [objs addObject:[(SWGObject*)dict toDictionary]];
             }
@@ -150,20 +152,10 @@ static NSString * basePath = @"{{basePath}}";
                 [objs addObject:dict];
             }
         }
-        bodyDictionary = objs;
+        bodyParam = objs;
     }
-    else if([__body respondsToSelector:@selector(toDictionary)]) {
-        bodyDictionary = [(SWGObject*)__body toDictionary];
-    }
-    else if([__body isKindOfClass:[NSString class]]) {
-        // convert it to a dictionary
-        NSError * error;
-        NSString * str = (NSString*)__body;
-        NSDictionary *JSON =
-            [NSJSONSerialization JSONObjectWithData: [str dataUsingEncoding: NSUTF8StringEncoding]
-                                            options: NSJSONReadingMutableContainers
-                                              error: &error];
-        bodyDictionary = JSON;
+    else if([bodyParam respondsToSelector:@selector(toDictionary)]) {
+        bodyParam = [(SWGObject*)bodyParam toDictionary];
     }
     {{/bodyParam}}
     {{^bodyParam}}
@@ -175,18 +167,18 @@ static NSString * basePath = @"{{basePath}}";
     formParams[@"{{paramName}}"] = {{paramName}};
     {{/notFile}}{{#isFile}}
     requestContentType = @"multipart/form-data";
-    if(bodyDictionary == nil) {
-      bodyDictionary = [[NSMutableArray alloc] init];
+    if(bodyParam == nil) {
+      bodyParam = [[NSMutableArray alloc] init];
     }
     if({{paramName}} != nil) {
-      [bodyDictionary addObject:{{paramName}}];
+      [bodyParam addObject:{{paramName}}];
       {{paramName}}.paramName  = @"{{baseName}}";
     }
     {{/isFile}}
-    if(bodyDictionary == nil) {
-      bodyDictionary = [[NSMutableArray alloc] init];
+    if(bodyParam == nil) {
+      bodyParam = [[NSMutableArray alloc] init];
     }
-    [bodyDictionary addObject:formParams];
+    [bodyParam addObject:formParams];
     {{/formParams}}
     {{/bodyParam}}
 
@@ -200,7 +192,7 @@ static NSString * basePath = @"{{basePath}}";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"{{httpMethod}}"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
diff --git a/samples/client/petstore/objc/SwaggerClient.xcworkspace/xcuserdata/geekerzp.xcuserdatad/UserInterfaceState.xcuserstate b/samples/client/petstore/objc/SwaggerClient.xcworkspace/xcuserdata/geekerzp.xcuserdatad/UserInterfaceState.xcuserstate
index d8a48b72bc2eb6cb0a734c22a88f15e99e0edb35..fe0defcf775e1b7d2fc2e827c6672586a76ac126 100644
GIT binary patch
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diff --git a/samples/client/petstore/objc/SwaggerClient/SwaggerClient.xcodeproj/project.pbxproj b/samples/client/petstore/objc/SwaggerClient/SwaggerClient.xcodeproj/project.pbxproj
index ac15f78e357..1424f7b9cfe 100644
--- a/samples/client/petstore/objc/SwaggerClient/SwaggerClient.xcodeproj/project.pbxproj
+++ b/samples/client/petstore/objc/SwaggerClient/SwaggerClient.xcodeproj/project.pbxproj
@@ -11,10 +11,13 @@
 		CF0560EB1B1855CF00C0D4EC /* SWGConfiguration.m in Sources */ = {isa = PBXBuildFile; fileRef = CF0560EA1B1855CF00C0D4EC /* SWGConfiguration.m */; };
 		CF31D0991B105E4B00509935 /* SWGApiClientTest.m in Sources */ = {isa = PBXBuildFile; fileRef = CF31D0981B105E4B00509935 /* SWGApiClientTest.m */; };
 		CF5B6E2D1B2BD70800862A1C /* UserApiTest.m in Sources */ = {isa = PBXBuildFile; fileRef = CF5B6E2C1B2BD70800862A1C /* UserApiTest.m */; };
+		CF8F85811B3A4796000DE569 /* SWGMythingApi.m in Sources */ = {isa = PBXBuildFile; fileRef = CF8F85801B3A4796000DE569 /* SWGMythingApi.m */; };
+		CF8F85841B3A4913000DE569 /* SWGMyresult.m in Sources */ = {isa = PBXBuildFile; fileRef = CF8F85831B3A4913000DE569 /* SWGMyresult.m */; };
 		CFB37D061B2B11DD00D2E5F1 /* StoreApiTest.m in Sources */ = {isa = PBXBuildFile; fileRef = CFB37D051B2B11DC00D2E5F1 /* StoreApiTest.m */; };
 		CFCEFE511B2C1330006313BE /* SWGJSONResponseSerializer.m in Sources */ = {isa = PBXBuildFile; fileRef = CFCEFE501B2C1330006313BE /* SWGJSONResponseSerializer.m */; };
 		CFD1B6701B05EC7D00DCCD51 /* JSONValueTransformer+ISO8601.m in Sources */ = {isa = PBXBuildFile; fileRef = CFD1B66F1B05EC7D00DCCD51 /* JSONValueTransformer+ISO8601.m */; };
 		CFD1B6711B05EC7D00DCCD51 /* JSONValueTransformer+ISO8601.m in Sources */ = {isa = PBXBuildFile; fileRef = CFD1B66F1B05EC7D00DCCD51 /* JSONValueTransformer+ISO8601.m */; };
+		CFE1E0391B3AA4EE0030FE7C /* SWGJSONRequestSerializer.m in Sources */ = {isa = PBXBuildFile; fileRef = CFE1E0381B3AA4EE0030FE7C /* SWGJSONRequestSerializer.m */; };
 		EA66999A1811D2FA00A70D03 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = EA6699991811D2FA00A70D03 /* Foundation.framework */; };
 		EA66999C1811D2FA00A70D03 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = EA66999B1811D2FA00A70D03 /* CoreGraphics.framework */; };
 		EA66999E1811D2FA00A70D03 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = EA66999D1811D2FA00A70D03 /* UIKit.framework */; };
@@ -64,11 +67,17 @@
 		CF0560EA1B1855CF00C0D4EC /* SWGConfiguration.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = SWGConfiguration.m; sourceTree = "<group>"; };
 		CF31D0981B105E4B00509935 /* SWGApiClientTest.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = SWGApiClientTest.m; sourceTree = "<group>"; };
 		CF5B6E2C1B2BD70800862A1C /* UserApiTest.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = UserApiTest.m; sourceTree = "<group>"; };
+		CF8F857F1B3A4796000DE569 /* SWGMythingApi.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SWGMythingApi.h; sourceTree = "<group>"; };
+		CF8F85801B3A4796000DE569 /* SWGMythingApi.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = SWGMythingApi.m; sourceTree = "<group>"; };
+		CF8F85821B3A4913000DE569 /* SWGMyresult.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SWGMyresult.h; sourceTree = "<group>"; };
+		CF8F85831B3A4913000DE569 /* SWGMyresult.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = SWGMyresult.m; sourceTree = "<group>"; };
 		CFB37D051B2B11DC00D2E5F1 /* StoreApiTest.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = StoreApiTest.m; sourceTree = "<group>"; };
 		CFCEFE4F1B2C1330006313BE /* SWGJSONResponseSerializer.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SWGJSONResponseSerializer.h; sourceTree = "<group>"; };
 		CFCEFE501B2C1330006313BE /* SWGJSONResponseSerializer.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = SWGJSONResponseSerializer.m; sourceTree = "<group>"; };
 		CFD1B66E1B05EC7D00DCCD51 /* JSONValueTransformer+ISO8601.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "JSONValueTransformer+ISO8601.h"; sourceTree = "<group>"; };
 		CFD1B66F1B05EC7D00DCCD51 /* JSONValueTransformer+ISO8601.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "JSONValueTransformer+ISO8601.m"; sourceTree = "<group>"; };
+		CFE1E0371B3AA4EE0030FE7C /* SWGJSONRequestSerializer.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SWGJSONRequestSerializer.h; sourceTree = "<group>"; };
+		CFE1E0381B3AA4EE0030FE7C /* SWGJSONRequestSerializer.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = SWGJSONRequestSerializer.m; sourceTree = "<group>"; };
 		E2B6DA00BE52336E23783686 /* Pods.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = Pods.debug.xcconfig; path = "../Pods/Target Support Files/Pods/Pods.debug.xcconfig"; sourceTree = "<group>"; };
 		EA6699961811D2FA00A70D03 /* SwaggerClient.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = SwaggerClient.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		EA6699991811D2FA00A70D03 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
@@ -253,11 +262,17 @@
 				EAEA85D21811D3AE00F06E69 /* SWGFile.h */,
 				EAEA85D31811D3AE00F06E69 /* SWGFile.m */,
 				EAEA85D41811D3AE00F06E69 /* SWGObject.h */,
+				CF8F85821B3A4913000DE569 /* SWGMyresult.h */,
+				CF8F85831B3A4913000DE569 /* SWGMyresult.m */,
+				CF8F857F1B3A4796000DE569 /* SWGMythingApi.h */,
+				CF8F85801B3A4796000DE569 /* SWGMythingApi.m */,
 				EAEA85D51811D3AE00F06E69 /* SWGObject.m */,
 				EAEA85D61811D3AE00F06E69 /* SWGOrder.h */,
 				EAEA85D71811D3AE00F06E69 /* SWGOrder.m */,
 				EAB26B0E1AC8E692002F5C7A /* SWGPet.h */,
 				CFCEFE4F1B2C1330006313BE /* SWGJSONResponseSerializer.h */,
+				CFE1E0371B3AA4EE0030FE7C /* SWGJSONRequestSerializer.h */,
+				CFE1E0381B3AA4EE0030FE7C /* SWGJSONRequestSerializer.m */,
 				CFCEFE501B2C1330006313BE /* SWGJSONResponseSerializer.m */,
 				EAEA85D91811D3AE00F06E69 /* SWGPet.m */,
 				EAEA85DA1811D3AE00F06E69 /* SWGPetApi.h */,
@@ -420,13 +435,16 @@
 				EAEA85EB1811D3AE00F06E69 /* SWGPetApi.m in Sources */,
 				EA6699A61811D2FA00A70D03 /* main.m in Sources */,
 				CFD1B6701B05EC7D00DCCD51 /* JSONValueTransformer+ISO8601.m in Sources */,
+				CF8F85841B3A4913000DE569 /* SWGMyresult.m in Sources */,
 				EAEA85EA1811D3AE00F06E69 /* SWGPet.m in Sources */,
 				EAEA85E41811D3AE00F06E69 /* SWGApiClient.m in Sources */,
 				EAEA85EC1811D3AE00F06E69 /* SWGStoreApi.m in Sources */,
 				EAEA85E91811D3AE00F06E69 /* SWGOrder.m in Sources */,
+				CF8F85811B3A4796000DE569 /* SWGMythingApi.m in Sources */,
 				EAEA85E81811D3AE00F06E69 /* SWGObject.m in Sources */,
 				EA8B8AA41AC6683700638FBB /* SWGQueryParamCollection.m in Sources */,
 				CFCEFE511B2C1330006313BE /* SWGJSONResponseSerializer.m in Sources */,
+				CFE1E0391B3AA4EE0030FE7C /* SWGJSONRequestSerializer.m in Sources */,
 				EAEA85E71811D3AE00F06E69 /* SWGFile.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
diff --git a/samples/client/petstore/objc/SwaggerClient/SwaggerClient/ViewController.m b/samples/client/petstore/objc/SwaggerClient/SwaggerClient/ViewController.m
index 388cacbb157..df696b0562b 100644
--- a/samples/client/petstore/objc/SwaggerClient/SwaggerClient/ViewController.m
+++ b/samples/client/petstore/objc/SwaggerClient/SwaggerClient/ViewController.m
@@ -7,10 +7,14 @@
 //
 
 #import "ViewController.h"
+#import "SWGPet.h"
+#import "SWGCategory.h"
+#import "SWGTag.h"
 #import "SWGPetApi.h"
 #import "SWGStoreApi.h"
 #import "SWGUserApi.h"
 #import "SWGConfiguration.h"
+#import "SWGMythingApi.h"
 
 @interface ViewController ()
 
@@ -21,49 +25,20 @@
 - (void)viewDidLoad
 {
     [super viewDidLoad];
-	// Do any additional setup after loading the view, typically from a nib.
     
-/*
-    SWGPetApi * api = [[SWGPetApi alloc] init];
-    [api getPetByIdWithCompletionBlock:@10 completionHandler:^(SWGPet *output, NSError *error) {
-        NSLog(@"%@", [output asDictionary]);
-        [output set_id:@101];
-        [api addPetWithCompletionBlock:output completionHandler:^(NSError *error) {
-            NSLog(@"Done!");
-        }];
-
-//         load data into file
-    }];
-    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"test-1" ofType:@"png"];
-    NSData *myData = [NSData dataWithContentsOfFile:filePath];
+    /*
+    NSDictionary *cateHash = @{ @"id": @123, @"name": @"test name" };
+    NSDictionary *tagHash = @{ @"id": @123, @"name": @"test name" };
+    NSDictionary *petHash = @{ @"id": @123, @"test": @(YES), @"name": @"test name", @"category": cateHash, @"tags": @[tagHash], @"photoUrls": @[@"test url"] };
+    SWGPet *pet = [[SWGPet alloc] initWithDictionary:petHash
+                                               error:nil];
     
-    SWGFile *file = [[SWGFile alloc] initWithNameData:@"test-2.png" mimeType:@"image/png" data:myData];
-    [api uploadFileWithCompletionBlock:@1
-                    additionalMetadata:@"some metadata"
-                                  file:file
-                     completionHandler:^(NSError *error) {
-                        if(error) {
-                          NSLog(@"%@", error);
-                        }
-                     }
-//                     completionHandler:^(SWGApiResponse *output, NSError *error) {
-//                         if(error) {
-//                             NSLog(@"%@", error);
-//                         }
-//                         else {
-//                             NSLog(@"%@", [output asDictionary]);
-//                         }
-//                     }
-     ];
-    */
     SWGPetApi *api = [[SWGPetApi alloc] init];
-    [api deletePetWithCompletionBlock:@"hello"
-                                petId:@1434529787992
-                    completionHandler:^(NSError *error) {
-                        if (error) {
-                            NSLog(@"%@", error);
-                        }
-                    }];
+    [api addPetWithCompletionBlock:pet completionHandler:^(NSError *error) {
+        NSLog(@"%@", error);
+    }];
+    */
+    
 }
 
 - (void)didReceiveMemoryWarning
diff --git a/samples/client/petstore/objc/client/SWGApiClient.h b/samples/client/petstore/objc/client/SWGApiClient.h
index 6ede775cb02..34722ed3ad9 100644
--- a/samples/client/petstore/objc/client/SWGApiClient.h
+++ b/samples/client/petstore/objc/client/SWGApiClient.h
@@ -1,7 +1,8 @@
 #import <Foundation/Foundation.h>
 #import <ISO8601/ISO8601.h>
 #import "AFHTTPRequestOperationManager.h"
-#import "SWGJSONResponseSerializer.h"  
+#import "SWGJSONResponseSerializer.h"
+#import "SWGJSONRequestSerializer.h"  
 
 #import "SWGUser.h"  
 #import "SWGCategory.h"  
diff --git a/samples/client/petstore/objc/client/SWGApiClient.m b/samples/client/petstore/objc/client/SWGApiClient.m
index 1b479d039e6..d7e6fac8385 100644
--- a/samples/client/petstore/objc/client/SWGApiClient.m
+++ b/samples/client/petstore/objc/client/SWGApiClient.m
@@ -486,7 +486,7 @@ static bool loggingEnabled = true;
                          completionBlock: (void (^)(id, NSError *))completionBlock {
     // setting request serializer
     if ([requestContentType isEqualToString:@"application/json"]) {
-        self.requestSerializer = [AFJSONRequestSerializer serializer];
+        self.requestSerializer = [SWGJSONRequestSerializer serializer];
     }
     else if ([requestContentType isEqualToString:@"application/x-www-form-urlencoded"]) {
         self.requestSerializer = [AFHTTPRequestSerializer serializer];
@@ -569,9 +569,11 @@ static bool loggingEnabled = true;
                                                  parameters: body
                                                       error: nil];
     }
+  
     BOOL hasHeaderParams = false;
-    if(headerParams != nil && [headerParams count] > 0)
+    if(headerParams != nil && [headerParams count] > 0) {
         hasHeaderParams = true;
+    }
     if(offlineState) {
         NSLog(@"%@ cache forced", path);
         [request setCachePolicy:NSURLRequestReturnCacheDataDontLoad];
@@ -585,17 +587,7 @@ static bool loggingEnabled = true;
         [request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
     }
 
-
-    if(body != nil) {
-        if([body isKindOfClass:[NSDictionary class]] || [body isKindOfClass:[NSArray class]]){
-            [self.requestSerializer setValue:requestContentType forHTTPHeaderField:@"Content-Type"];
-        }
-        else if ([body isKindOfClass:[SWGFile class]]){}
-        else {
-            NSAssert(false, @"unsupported post type!");
-        }
-    }
-    if(headerParams != nil){
+    if(hasHeaderParams){
         for(NSString * key in [headerParams keyEnumerator]){
             [request setValue:[headerParams valueForKey:key] forHTTPHeaderField:key];
         }
diff --git a/samples/client/petstore/objc/client/SWGJSONRequestSerializer.h b/samples/client/petstore/objc/client/SWGJSONRequestSerializer.h
new file mode 100644
index 00000000000..49dd7fca3e2
--- /dev/null
+++ b/samples/client/petstore/objc/client/SWGJSONRequestSerializer.h
@@ -0,0 +1,5 @@
+#import <Foundation/Foundation.h>
+#import <AFNetworking/AFURLRequestSerialization.h>
+
+@interface SWGJSONRequestSerializer : AFJSONRequestSerializer
+@end
diff --git a/samples/client/petstore/objc/client/SWGJSONRequestSerializer.m b/samples/client/petstore/objc/client/SWGJSONRequestSerializer.m
new file mode 100644
index 00000000000..631a20a5a6e
--- /dev/null
+++ b/samples/client/petstore/objc/client/SWGJSONRequestSerializer.m
@@ -0,0 +1,35 @@
+#import "SWGJSONRequestSerializer.h"
+
+@implementation SWGJSONRequestSerializer
+
+///
+/// When customize a request serializer,
+/// the serializer must conform the protocol `AFURLRequestSerialization`
+/// and implements the protocol method `requestBySerializingRequest:withParameters:error:`
+///
+/// @param request    The original request.
+/// @param parameters The parameters to be encoded.
+/// @param error      The error that occurred while attempting to encode the request parameters.
+///
+/// @return A serialized request.
+///
+- (NSURLRequest *)requestBySerializingRequest:(NSURLRequest *)request
+                               withParameters:(id)parameters
+                                        error:(NSError *__autoreleasing *)error
+{
+    // If the body data which will be serialized isn't NSArray or NSDictionary
+    // then put the data in the http request body directly.
+    if ([parameters isKindOfClass:[NSArray class]] || [parameters isKindOfClass:[NSDictionary class]]) {
+        return [super requestBySerializingRequest:request withParameters:parameters error:error];
+    } else {
+        NSMutableURLRequest *mutableRequest = [request mutableCopy];
+        
+        if (parameters) {
+            [mutableRequest setHTTPBody:[parameters dataUsingEncoding:self.stringEncoding]];
+        }
+        
+        return mutableRequest;
+    }
+}
+
+@end
diff --git a/samples/client/petstore/objc/client/SWGOrder.h b/samples/client/petstore/objc/client/SWGOrder.h
index c4f4f6e81ad..2e71906cd53 100644
--- a/samples/client/petstore/objc/client/SWGOrder.h
+++ b/samples/client/petstore/objc/client/SWGOrder.h
@@ -19,6 +19,6 @@
  */
 @property(nonatomic) NSString* status;
 
-@property(nonatomic) BOOL complete;
+@property(nonatomic) NSNumber* complete;
 
 @end
diff --git a/samples/client/petstore/objc/client/SWGPetApi.m b/samples/client/petstore/objc/client/SWGPetApi.m
index e4306f1b235..01d127bc283 100644
--- a/samples/client/petstore/objc/client/SWGPetApi.m
+++ b/samples/client/petstore/objc/client/SWGPetApi.m
@@ -121,14 +121,14 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[@"petstore_auth"];
-    
-    id bodyDictionary = nil;
-    
-    id __body = body;
 
-    if(__body != nil && [__body isKindOfClass:[NSArray class]]){
-        NSMutableArray * objs = [[NSMutableArray alloc] init];
-        for (id dict in (NSArray*)__body) {
+    id bodyParam = nil;
+    
+    bodyParam = body;
+
+    if(bodyParam != nil && [bodyParam isKindOfClass:[NSArray class]]){
+        NSMutableArray *objs = [[NSMutableArray alloc] init];
+        for (id dict in (NSArray*)bodyParam) {
             if([dict respondsToSelector:@selector(toDictionary)]) {
                 [objs addObject:[(SWGObject*)dict toDictionary]];
             }
@@ -136,20 +136,10 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
                 [objs addObject:dict];
             }
         }
-        bodyDictionary = objs;
+        bodyParam = objs;
     }
-    else if([__body respondsToSelector:@selector(toDictionary)]) {
-        bodyDictionary = [(SWGObject*)__body toDictionary];
-    }
-    else if([__body isKindOfClass:[NSString class]]) {
-        // convert it to a dictionary
-        NSError * error;
-        NSString * str = (NSString*)__body;
-        NSDictionary *JSON =
-            [NSJSONSerialization JSONObjectWithData: [str dataUsingEncoding: NSUTF8StringEncoding]
-                                            options: NSJSONReadingMutableContainers
-                                              error: &error];
-        bodyDictionary = JSON;
+    else if([bodyParam respondsToSelector:@selector(toDictionary)]) {
+        bodyParam = [(SWGObject*)bodyParam toDictionary];
     }
     
     
@@ -158,7 +148,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"PUT"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -218,14 +208,14 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[@"petstore_auth"];
-    
-    id bodyDictionary = nil;
-    
-    id __body = body;
 
-    if(__body != nil && [__body isKindOfClass:[NSArray class]]){
-        NSMutableArray * objs = [[NSMutableArray alloc] init];
-        for (id dict in (NSArray*)__body) {
+    id bodyParam = nil;
+    
+    bodyParam = body;
+
+    if(bodyParam != nil && [bodyParam isKindOfClass:[NSArray class]]){
+        NSMutableArray *objs = [[NSMutableArray alloc] init];
+        for (id dict in (NSArray*)bodyParam) {
             if([dict respondsToSelector:@selector(toDictionary)]) {
                 [objs addObject:[(SWGObject*)dict toDictionary]];
             }
@@ -233,20 +223,10 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
                 [objs addObject:dict];
             }
         }
-        bodyDictionary = objs;
+        bodyParam = objs;
     }
-    else if([__body respondsToSelector:@selector(toDictionary)]) {
-        bodyDictionary = [(SWGObject*)__body toDictionary];
-    }
-    else if([__body isKindOfClass:[NSString class]]) {
-        // convert it to a dictionary
-        NSError * error;
-        NSString * str = (NSString*)__body;
-        NSDictionary *JSON =
-            [NSJSONSerialization JSONObjectWithData: [str dataUsingEncoding: NSUTF8StringEncoding]
-                                            options: NSJSONReadingMutableContainers
-                                              error: &error];
-        bodyDictionary = JSON;
+    else if([bodyParam respondsToSelector:@selector(toDictionary)]) {
+        bodyParam = [(SWGObject*)bodyParam toDictionary];
     }
     
     
@@ -255,7 +235,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"POST"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -321,8 +301,8 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[@"petstore_auth"];
-    
-    id bodyDictionary = nil;
+
+    id bodyParam = nil;
     
     
 
@@ -335,7 +315,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"GET"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -401,8 +381,8 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[@"petstore_auth"];
-    
-    id bodyDictionary = nil;
+
+    id bodyParam = nil;
     
     
 
@@ -415,7 +395,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"GET"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -441,7 +421,9 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
     // verify the required parameter 'petId' is set
-    NSAssert(petId != nil, @"Missing the required parameter `petId` when calling getPetById");
+    if (petId == nil) {
+        [NSException raise:@"Invalid parameter" format:@"Missing the required parameter `petId` when calling `getPetById`"];
+    }
     
 
     NSMutableString* requestUrl = [NSMutableString stringWithFormat:@"%@/pet/{petId}", basePath];
@@ -479,8 +461,8 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[@"api_key", @"petstore_auth"];
-    
-    id bodyDictionary = nil;
+
+    id bodyParam = nil;
     
     
 
@@ -493,7 +475,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"GET"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -525,7 +507,9 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
     // verify the required parameter 'petId' is set
-    NSAssert(petId != nil, @"Missing the required parameter `petId` when calling updatePetWithForm");
+    if (petId == nil) {
+        [NSException raise:@"Invalid parameter" format:@"Missing the required parameter `petId` when calling `updatePetWithForm`"];
+    }
     
 
     NSMutableString* requestUrl = [NSMutableString stringWithFormat:@"%@/pet/{petId}", basePath];
@@ -563,8 +547,8 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[@"petstore_auth"];
-    
-    id bodyDictionary = nil;
+
+    id bodyParam = nil;
     
     
 
@@ -574,18 +558,18 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     
     formParams[@"name"] = name;
     
-    if(bodyDictionary == nil) {
-      bodyDictionary = [[NSMutableArray alloc] init];
+    if(bodyParam == nil) {
+      bodyParam = [[NSMutableArray alloc] init];
     }
-    [bodyDictionary addObject:formParams];
+    [bodyParam addObject:formParams];
     
     
     formParams[@"status"] = status;
     
-    if(bodyDictionary == nil) {
-      bodyDictionary = [[NSMutableArray alloc] init];
+    if(bodyParam == nil) {
+      bodyParam = [[NSMutableArray alloc] init];
     }
-    [bodyDictionary addObject:formParams];
+    [bodyParam addObject:formParams];
     
     
 
@@ -593,7 +577,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"POST"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -622,7 +606,9 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
     // verify the required parameter 'petId' is set
-    NSAssert(petId != nil, @"Missing the required parameter `petId` when calling deletePet");
+    if (petId == nil) {
+        [NSException raise:@"Invalid parameter" format:@"Missing the required parameter `petId` when calling `deletePet`"];
+    }
     
 
     NSMutableString* requestUrl = [NSMutableString stringWithFormat:@"%@/pet/{petId}", basePath];
@@ -662,8 +648,8 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[@"petstore_auth"];
-    
-    id bodyDictionary = nil;
+
+    id bodyParam = nil;
     
     
 
@@ -676,7 +662,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"DELETE"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -708,7 +694,9 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
     // verify the required parameter 'petId' is set
-    NSAssert(petId != nil, @"Missing the required parameter `petId` when calling uploadFile");
+    if (petId == nil) {
+        [NSException raise:@"Invalid parameter" format:@"Missing the required parameter `petId` when calling `uploadFile`"];
+    }
     
 
     NSMutableString* requestUrl = [NSMutableString stringWithFormat:@"%@/pet/{petId}/uploadImage", basePath];
@@ -746,8 +734,8 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[@"petstore_auth"];
-    
-    id bodyDictionary = nil;
+
+    id bodyParam = nil;
     
     
 
@@ -757,25 +745,25 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     
     formParams[@"additionalMetadata"] = additionalMetadata;
     
-    if(bodyDictionary == nil) {
-      bodyDictionary = [[NSMutableArray alloc] init];
+    if(bodyParam == nil) {
+      bodyParam = [[NSMutableArray alloc] init];
     }
-    [bodyDictionary addObject:formParams];
+    [bodyParam addObject:formParams];
     
     
     requestContentType = @"multipart/form-data";
-    if(bodyDictionary == nil) {
-      bodyDictionary = [[NSMutableArray alloc] init];
+    if(bodyParam == nil) {
+      bodyParam = [[NSMutableArray alloc] init];
     }
     if(file != nil) {
-      [bodyDictionary addObject:file];
+      [bodyParam addObject:file];
       file.paramName  = @"file";
     }
     
-    if(bodyDictionary == nil) {
-      bodyDictionary = [[NSMutableArray alloc] init];
+    if(bodyParam == nil) {
+      bodyParam = [[NSMutableArray alloc] init];
     }
-    [bodyDictionary addObject:formParams];
+    [bodyParam addObject:formParams];
     
     
 
@@ -783,7 +771,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"POST"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
diff --git a/samples/client/petstore/objc/client/SWGStoreApi.m b/samples/client/petstore/objc/client/SWGStoreApi.m
index 98582602027..71b5af87744 100644
--- a/samples/client/petstore/objc/client/SWGStoreApi.m
+++ b/samples/client/petstore/objc/client/SWGStoreApi.m
@@ -117,8 +117,8 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[@"api_key"];
-    
-    id bodyDictionary = nil;
+
+    id bodyParam = nil;
     
     
 
@@ -131,7 +131,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"GET"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -191,14 +191,14 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[];
-    
-    id bodyDictionary = nil;
-    
-    id __body = body;
 
-    if(__body != nil && [__body isKindOfClass:[NSArray class]]){
-        NSMutableArray * objs = [[NSMutableArray alloc] init];
-        for (id dict in (NSArray*)__body) {
+    id bodyParam = nil;
+    
+    bodyParam = body;
+
+    if(bodyParam != nil && [bodyParam isKindOfClass:[NSArray class]]){
+        NSMutableArray *objs = [[NSMutableArray alloc] init];
+        for (id dict in (NSArray*)bodyParam) {
             if([dict respondsToSelector:@selector(toDictionary)]) {
                 [objs addObject:[(SWGObject*)dict toDictionary]];
             }
@@ -206,20 +206,10 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
                 [objs addObject:dict];
             }
         }
-        bodyDictionary = objs;
+        bodyParam = objs;
     }
-    else if([__body respondsToSelector:@selector(toDictionary)]) {
-        bodyDictionary = [(SWGObject*)__body toDictionary];
-    }
-    else if([__body isKindOfClass:[NSString class]]) {
-        // convert it to a dictionary
-        NSError * error;
-        NSString * str = (NSString*)__body;
-        NSDictionary *JSON =
-            [NSJSONSerialization JSONObjectWithData: [str dataUsingEncoding: NSUTF8StringEncoding]
-                                            options: NSJSONReadingMutableContainers
-                                              error: &error];
-        bodyDictionary = JSON;
+    else if([bodyParam respondsToSelector:@selector(toDictionary)]) {
+        bodyParam = [(SWGObject*)bodyParam toDictionary];
     }
     
     
@@ -228,7 +218,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"POST"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -254,7 +244,9 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
     // verify the required parameter 'orderId' is set
-    NSAssert(orderId != nil, @"Missing the required parameter `orderId` when calling getOrderById");
+    if (orderId == nil) {
+        [NSException raise:@"Invalid parameter" format:@"Missing the required parameter `orderId` when calling `getOrderById`"];
+    }
     
 
     NSMutableString* requestUrl = [NSMutableString stringWithFormat:@"%@/store/order/{orderId}", basePath];
@@ -292,8 +284,8 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[];
-    
-    id bodyDictionary = nil;
+
+    id bodyParam = nil;
     
     
 
@@ -306,7 +298,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"GET"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -332,7 +324,9 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
     // verify the required parameter 'orderId' is set
-    NSAssert(orderId != nil, @"Missing the required parameter `orderId` when calling deleteOrder");
+    if (orderId == nil) {
+        [NSException raise:@"Invalid parameter" format:@"Missing the required parameter `orderId` when calling `deleteOrder`"];
+    }
     
 
     NSMutableString* requestUrl = [NSMutableString stringWithFormat:@"%@/store/order/{orderId}", basePath];
@@ -370,8 +364,8 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[];
-    
-    id bodyDictionary = nil;
+
+    id bodyParam = nil;
     
     
 
@@ -384,7 +378,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"DELETE"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
diff --git a/samples/client/petstore/objc/client/SWGUserApi.m b/samples/client/petstore/objc/client/SWGUserApi.m
index 2e8ce66b74e..06b6d2ce666 100644
--- a/samples/client/petstore/objc/client/SWGUserApi.m
+++ b/samples/client/petstore/objc/client/SWGUserApi.m
@@ -120,14 +120,14 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[];
-    
-    id bodyDictionary = nil;
-    
-    id __body = body;
 
-    if(__body != nil && [__body isKindOfClass:[NSArray class]]){
-        NSMutableArray * objs = [[NSMutableArray alloc] init];
-        for (id dict in (NSArray*)__body) {
+    id bodyParam = nil;
+    
+    bodyParam = body;
+
+    if(bodyParam != nil && [bodyParam isKindOfClass:[NSArray class]]){
+        NSMutableArray *objs = [[NSMutableArray alloc] init];
+        for (id dict in (NSArray*)bodyParam) {
             if([dict respondsToSelector:@selector(toDictionary)]) {
                 [objs addObject:[(SWGObject*)dict toDictionary]];
             }
@@ -135,20 +135,10 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
                 [objs addObject:dict];
             }
         }
-        bodyDictionary = objs;
+        bodyParam = objs;
     }
-    else if([__body respondsToSelector:@selector(toDictionary)]) {
-        bodyDictionary = [(SWGObject*)__body toDictionary];
-    }
-    else if([__body isKindOfClass:[NSString class]]) {
-        // convert it to a dictionary
-        NSError * error;
-        NSString * str = (NSString*)__body;
-        NSDictionary *JSON =
-            [NSJSONSerialization JSONObjectWithData: [str dataUsingEncoding: NSUTF8StringEncoding]
-                                            options: NSJSONReadingMutableContainers
-                                              error: &error];
-        bodyDictionary = JSON;
+    else if([bodyParam respondsToSelector:@selector(toDictionary)]) {
+        bodyParam = [(SWGObject*)bodyParam toDictionary];
     }
     
     
@@ -157,7 +147,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"POST"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -217,14 +207,14 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[];
-    
-    id bodyDictionary = nil;
-    
-    id __body = body;
 
-    if(__body != nil && [__body isKindOfClass:[NSArray class]]){
-        NSMutableArray * objs = [[NSMutableArray alloc] init];
-        for (id dict in (NSArray*)__body) {
+    id bodyParam = nil;
+    
+    bodyParam = body;
+
+    if(bodyParam != nil && [bodyParam isKindOfClass:[NSArray class]]){
+        NSMutableArray *objs = [[NSMutableArray alloc] init];
+        for (id dict in (NSArray*)bodyParam) {
             if([dict respondsToSelector:@selector(toDictionary)]) {
                 [objs addObject:[(SWGObject*)dict toDictionary]];
             }
@@ -232,20 +222,10 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
                 [objs addObject:dict];
             }
         }
-        bodyDictionary = objs;
+        bodyParam = objs;
     }
-    else if([__body respondsToSelector:@selector(toDictionary)]) {
-        bodyDictionary = [(SWGObject*)__body toDictionary];
-    }
-    else if([__body isKindOfClass:[NSString class]]) {
-        // convert it to a dictionary
-        NSError * error;
-        NSString * str = (NSString*)__body;
-        NSDictionary *JSON =
-            [NSJSONSerialization JSONObjectWithData: [str dataUsingEncoding: NSUTF8StringEncoding]
-                                            options: NSJSONReadingMutableContainers
-                                              error: &error];
-        bodyDictionary = JSON;
+    else if([bodyParam respondsToSelector:@selector(toDictionary)]) {
+        bodyParam = [(SWGObject*)bodyParam toDictionary];
     }
     
     
@@ -254,7 +234,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"POST"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -314,14 +294,14 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[];
-    
-    id bodyDictionary = nil;
-    
-    id __body = body;
 
-    if(__body != nil && [__body isKindOfClass:[NSArray class]]){
-        NSMutableArray * objs = [[NSMutableArray alloc] init];
-        for (id dict in (NSArray*)__body) {
+    id bodyParam = nil;
+    
+    bodyParam = body;
+
+    if(bodyParam != nil && [bodyParam isKindOfClass:[NSArray class]]){
+        NSMutableArray *objs = [[NSMutableArray alloc] init];
+        for (id dict in (NSArray*)bodyParam) {
             if([dict respondsToSelector:@selector(toDictionary)]) {
                 [objs addObject:[(SWGObject*)dict toDictionary]];
             }
@@ -329,20 +309,10 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
                 [objs addObject:dict];
             }
         }
-        bodyDictionary = objs;
+        bodyParam = objs;
     }
-    else if([__body respondsToSelector:@selector(toDictionary)]) {
-        bodyDictionary = [(SWGObject*)__body toDictionary];
-    }
-    else if([__body isKindOfClass:[NSString class]]) {
-        // convert it to a dictionary
-        NSError * error;
-        NSString * str = (NSString*)__body;
-        NSDictionary *JSON =
-            [NSJSONSerialization JSONObjectWithData: [str dataUsingEncoding: NSUTF8StringEncoding]
-                                            options: NSJSONReadingMutableContainers
-                                              error: &error];
-        bodyDictionary = JSON;
+    else if([bodyParam respondsToSelector:@selector(toDictionary)]) {
+        bodyParam = [(SWGObject*)bodyParam toDictionary];
     }
     
     
@@ -351,7 +321,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"POST"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -422,8 +392,8 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[];
-    
-    id bodyDictionary = nil;
+
+    id bodyParam = nil;
     
     
 
@@ -436,7 +406,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"GET"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -493,8 +463,8 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[];
-    
-    id bodyDictionary = nil;
+
+    id bodyParam = nil;
     
     
 
@@ -507,7 +477,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"GET"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -533,7 +503,9 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
     // verify the required parameter 'username' is set
-    NSAssert(username != nil, @"Missing the required parameter `username` when calling getUserByName");
+    if (username == nil) {
+        [NSException raise:@"Invalid parameter" format:@"Missing the required parameter `username` when calling `getUserByName`"];
+    }
     
 
     NSMutableString* requestUrl = [NSMutableString stringWithFormat:@"%@/user/{username}", basePath];
@@ -571,8 +543,8 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[];
-    
-    id bodyDictionary = nil;
+
+    id bodyParam = nil;
     
     
 
@@ -585,7 +557,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"GET"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -614,7 +586,9 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
     // verify the required parameter 'username' is set
-    NSAssert(username != nil, @"Missing the required parameter `username` when calling updateUser");
+    if (username == nil) {
+        [NSException raise:@"Invalid parameter" format:@"Missing the required parameter `username` when calling `updateUser`"];
+    }
     
 
     NSMutableString* requestUrl = [NSMutableString stringWithFormat:@"%@/user/{username}", basePath];
@@ -652,14 +626,14 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[];
-    
-    id bodyDictionary = nil;
-    
-    id __body = body;
 
-    if(__body != nil && [__body isKindOfClass:[NSArray class]]){
-        NSMutableArray * objs = [[NSMutableArray alloc] init];
-        for (id dict in (NSArray*)__body) {
+    id bodyParam = nil;
+    
+    bodyParam = body;
+
+    if(bodyParam != nil && [bodyParam isKindOfClass:[NSArray class]]){
+        NSMutableArray *objs = [[NSMutableArray alloc] init];
+        for (id dict in (NSArray*)bodyParam) {
             if([dict respondsToSelector:@selector(toDictionary)]) {
                 [objs addObject:[(SWGObject*)dict toDictionary]];
             }
@@ -667,20 +641,10 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
                 [objs addObject:dict];
             }
         }
-        bodyDictionary = objs;
+        bodyParam = objs;
     }
-    else if([__body respondsToSelector:@selector(toDictionary)]) {
-        bodyDictionary = [(SWGObject*)__body toDictionary];
-    }
-    else if([__body isKindOfClass:[NSString class]]) {
-        // convert it to a dictionary
-        NSError * error;
-        NSString * str = (NSString*)__body;
-        NSDictionary *JSON =
-            [NSJSONSerialization JSONObjectWithData: [str dataUsingEncoding: NSUTF8StringEncoding]
-                                            options: NSJSONReadingMutableContainers
-                                              error: &error];
-        bodyDictionary = JSON;
+    else if([bodyParam respondsToSelector:@selector(toDictionary)]) {
+        bodyParam = [(SWGObject*)bodyParam toDictionary];
     }
     
     
@@ -689,7 +653,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"PUT"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType
@@ -715,7 +679,9 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
     // verify the required parameter 'username' is set
-    NSAssert(username != nil, @"Missing the required parameter `username` when calling deleteUser");
+    if (username == nil) {
+        [NSException raise:@"Invalid parameter" format:@"Missing the required parameter `username` when calling `deleteUser`"];
+    }
     
 
     NSMutableString* requestUrl = [NSMutableString stringWithFormat:@"%@/user/{username}", basePath];
@@ -753,8 +719,8 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     // Authentication setting
     NSArray *authSettings = @[];
-    
-    id bodyDictionary = nil;
+
+    id bodyParam = nil;
     
     
 
@@ -767,7 +733,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return [self.apiClient requestWithCompletionBlock: requestUrl
                                                method: @"DELETE"
                                           queryParams: queryParams
-                                                 body: bodyDictionary
+                                                 body: bodyParam
                                          headerParams: headerParams
                                          authSettings: authSettings
                                    requestContentType: requestContentType