[C++] [cpp-rest-sdk] Check for null values (#990)

* Check whether a value is present but null

* Update Petstore sample

modules/openapi-generator/src/main/resources/cpp-rest-sdk-client/model-source.mustache

@@ -140,7 +140,11 @@ void {{classname}}::fromJson(web::json::value& val)
     {{^required}}
     if(val.has_field(utility::conversions::to_string_t("{{baseName}}")))
     {
-        {{setter}}(ModelBase::{{baseType}}FromJson(val[utility::conversions::to_string_t("{{baseName}}")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("{{baseName}}")];
+        if(!fieldValue.is_null())
+        {
+            {{setter}}(ModelBase::{{baseType}}FromJson(fieldValue));
+        }
     }
     {{/required}}
     {{#required}}
@@ -242,27 +246,28 @@ void {{classname}}::fromJson(web::json::value& val)
     {{^required}}
     if(val.has_field(utility::conversions::to_string_t("{{baseName}}")))
     {
-        {{#isString}}
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("{{baseName}}")];
-        {{setter}}(ModelBase::stringFromJson(val[utility::conversions::to_string_t("{{baseName}}")]));
+        if(!fieldValue.is_null())
-        {{/isString}}
-        {{#isByteArray}}
-        {{setter}}(ModelBase::stringFromJson(val[utility::conversions::to_string_t("{{baseName}}")]));
-        {{/isByteArray}}
-        {{^isString}}
-        {{#isDateTime}}
-        {{setter}}(ModelBase::dateFromJson(val[utility::conversions::to_string_t("{{baseName}}")]));
-        {{/isDateTime}}
-        {{^isDateTime}}
-        {{^isByteArray}}
-        if(!val[utility::conversions::to_string_t("{{baseName}}")].is_null())
         {
+            {{#isString}}
+            {{setter}}(ModelBase::stringFromJson(fieldValue));
+            {{/isString}}
+            {{#isByteArray}}
+            {{setter}}(ModelBase::stringFromJson(fieldValue));
+            {{/isByteArray}}
+            {{^isString}}
+            {{#isDateTime}}
+            {{setter}}(ModelBase::dateFromJson(fieldValue));
+            {{/isDateTime}}
+            {{^isDateTime}}
+            {{^isByteArray}}
             {{{dataType}}} newItem({{{defaultValue}}});
-            newItem->fromJson(val[utility::conversions::to_string_t("{{baseName}}")]);
+            newItem->fromJson(fieldValue);
             {{setter}}( newItem );
+            {{/isByteArray}}
+            {{/isDateTime}}
+            {{/isString}}
         }
-        {{/isByteArray}}
-        {{/isDateTime}}
-        {{/isString}}
     }
     {{/required}}
     {{#required}}

samples/client/petstore/cpp-restsdk/.openapi-generator/VERSION

@@ -1 +1 @@
-3.2.2-SNAPSHOT
+3.3.0-SNAPSHOT

samples/client/petstore/cpp-restsdk/ApiClient.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/ApiClient.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/ApiConfiguration.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/ApiConfiguration.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/ApiException.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/ApiException.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/HttpContent.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/HttpContent.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/IHttpBody.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/JsonBody.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/JsonBody.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/ModelBase.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/ModelBase.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/MultipartFormData.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/MultipartFormData.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/Object.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/Object.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/api/PetApi.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/api/PetApi.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/api/StoreApi.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/api/StoreApi.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/api/UserApi.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/api/UserApi.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/model/ApiResponse.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */
@@ -61,15 +61,27 @@ void ApiResponse::fromJson(web::json::value& val)
 {
     if(val.has_field(utility::conversions::to_string_t("code")))
     {
-        setCode(ModelBase::int32_tFromJson(val[utility::conversions::to_string_t("code")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("code")];
+        if(!fieldValue.is_null())
+        {
+            setCode(ModelBase::int32_tFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("type")))
     {
-        setType(ModelBase::stringFromJson(val[utility::conversions::to_string_t("type")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("type")];
+        if(!fieldValue.is_null())
+        {
+            setType(ModelBase::stringFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("message")))
     {
-        setMessage(ModelBase::stringFromJson(val[utility::conversions::to_string_t("message")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("message")];
+        if(!fieldValue.is_null())
+        {
+            setMessage(ModelBase::stringFromJson(fieldValue));
+        }
     }
 }
 

samples/client/petstore/cpp-restsdk/model/ApiResponse.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/model/Category.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */
@@ -55,11 +55,19 @@ void Category::fromJson(web::json::value& val)
 {
     if(val.has_field(utility::conversions::to_string_t("id")))
     {
-        setId(ModelBase::int64_tFromJson(val[utility::conversions::to_string_t("id")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("id")];
+        if(!fieldValue.is_null())
+        {
+            setId(ModelBase::int64_tFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("name")))
     {
-        setName(ModelBase::stringFromJson(val[utility::conversions::to_string_t("name")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("name")];
+        if(!fieldValue.is_null())
+        {
+            setName(ModelBase::stringFromJson(fieldValue));
+        }
     }
 }
 

samples/client/petstore/cpp-restsdk/model/Category.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/model/Order.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */
@@ -79,27 +79,51 @@ void Order::fromJson(web::json::value& val)
 {
     if(val.has_field(utility::conversions::to_string_t("id")))
     {
-        setId(ModelBase::int64_tFromJson(val[utility::conversions::to_string_t("id")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("id")];
+        if(!fieldValue.is_null())
+        {
+            setId(ModelBase::int64_tFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("petId")))
     {
-        setPetId(ModelBase::int64_tFromJson(val[utility::conversions::to_string_t("petId")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("petId")];
+        if(!fieldValue.is_null())
+        {
+            setPetId(ModelBase::int64_tFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("quantity")))
     {
-        setQuantity(ModelBase::int32_tFromJson(val[utility::conversions::to_string_t("quantity")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("quantity")];
+        if(!fieldValue.is_null())
+        {
+            setQuantity(ModelBase::int32_tFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("shipDate")))
     {
-        setShipDate(ModelBase::dateFromJson(val[utility::conversions::to_string_t("shipDate")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("shipDate")];
+        if(!fieldValue.is_null())
+        {
+            setShipDate(ModelBase::dateFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("status")))
     {
-        setStatus(ModelBase::stringFromJson(val[utility::conversions::to_string_t("status")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("status")];
+        if(!fieldValue.is_null())
+        {
+            setStatus(ModelBase::stringFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("complete")))
     {
-        setComplete(ModelBase::boolFromJson(val[utility::conversions::to_string_t("complete")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("complete")];
+        if(!fieldValue.is_null())
+        {
+            setComplete(ModelBase::boolFromJson(fieldValue));
+        }
     }
 }
 

samples/client/petstore/cpp-restsdk/model/Order.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/model/Pet.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */
@@ -82,14 +82,19 @@ void Pet::fromJson(web::json::value& val)
 {
     if(val.has_field(utility::conversions::to_string_t("id")))
     {
-        setId(ModelBase::int64_tFromJson(val[utility::conversions::to_string_t("id")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("id")];
+        if(!fieldValue.is_null())
+        {
+            setId(ModelBase::int64_tFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("category")))
     {
-        if(!val[utility::conversions::to_string_t("category")].is_null())
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("category")];
+        if(!fieldValue.is_null())
         {
             std::shared_ptr<Category> newItem(new Category());
-            newItem->fromJson(val[utility::conversions::to_string_t("category")]);
+            newItem->fromJson(fieldValue);
             setCategory( newItem );
         }
     }
@@ -124,7 +129,11 @@ void Pet::fromJson(web::json::value& val)
     }
     if(val.has_field(utility::conversions::to_string_t("status")))
     {
-        setStatus(ModelBase::stringFromJson(val[utility::conversions::to_string_t("status")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("status")];
+        if(!fieldValue.is_null())
+        {
+            setStatus(ModelBase::stringFromJson(fieldValue));
+        }
     }
 }
 

samples/client/petstore/cpp-restsdk/model/Pet.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/model/Tag.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */
@@ -55,11 +55,19 @@ void Tag::fromJson(web::json::value& val)
 {
     if(val.has_field(utility::conversions::to_string_t("id")))
     {
-        setId(ModelBase::int64_tFromJson(val[utility::conversions::to_string_t("id")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("id")];
+        if(!fieldValue.is_null())
+        {
+            setId(ModelBase::int64_tFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("name")))
     {
-        setName(ModelBase::stringFromJson(val[utility::conversions::to_string_t("name")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("name")];
+        if(!fieldValue.is_null())
+        {
+            setName(ModelBase::stringFromJson(fieldValue));
+        }
     }
 }
 

samples/client/petstore/cpp-restsdk/model/Tag.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */

samples/client/petstore/cpp-restsdk/model/User.cpp

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */
@@ -91,35 +91,67 @@ void User::fromJson(web::json::value& val)
 {
     if(val.has_field(utility::conversions::to_string_t("id")))
     {
-        setId(ModelBase::int64_tFromJson(val[utility::conversions::to_string_t("id")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("id")];
+        if(!fieldValue.is_null())
+        {
+            setId(ModelBase::int64_tFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("username")))
     {
-        setUsername(ModelBase::stringFromJson(val[utility::conversions::to_string_t("username")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("username")];
+        if(!fieldValue.is_null())
+        {
+            setUsername(ModelBase::stringFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("firstName")))
     {
-        setFirstName(ModelBase::stringFromJson(val[utility::conversions::to_string_t("firstName")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("firstName")];
+        if(!fieldValue.is_null())
+        {
+            setFirstName(ModelBase::stringFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("lastName")))
     {
-        setLastName(ModelBase::stringFromJson(val[utility::conversions::to_string_t("lastName")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("lastName")];
+        if(!fieldValue.is_null())
+        {
+            setLastName(ModelBase::stringFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("email")))
     {
-        setEmail(ModelBase::stringFromJson(val[utility::conversions::to_string_t("email")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("email")];
+        if(!fieldValue.is_null())
+        {
+            setEmail(ModelBase::stringFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("password")))
     {
-        setPassword(ModelBase::stringFromJson(val[utility::conversions::to_string_t("password")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("password")];
+        if(!fieldValue.is_null())
+        {
+            setPassword(ModelBase::stringFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("phone")))
     {
-        setPhone(ModelBase::stringFromJson(val[utility::conversions::to_string_t("phone")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("phone")];
+        if(!fieldValue.is_null())
+        {
+            setPhone(ModelBase::stringFromJson(fieldValue));
+        }
     }
     if(val.has_field(utility::conversions::to_string_t("userStatus")))
     {
-        setUserStatus(ModelBase::int32_tFromJson(val[utility::conversions::to_string_t("userStatus")]));
+        web::json::value& fieldValue = val[utility::conversions::to_string_t("userStatus")];
+        if(!fieldValue.is_null())
+        {
+            setUserStatus(ModelBase::int32_tFromJson(fieldValue));
+        }
     }
 }
 

samples/client/petstore/cpp-restsdk/model/User.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.2.2-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */