openapi-generator/docs/generators/cpp-ue4.md

title	sidebar_label
Config Options for cpp-ue4	cpp-ue4

Option	Description	Values	Default
allowUnicodeIdentifiers	boolean, toggles whether unicode identifiers are allowed in names or not, default is false		false
cppNamespace	C++ namespace (convention: name::space::for::api).		OpenAPI
ensureUniqueParams	Whether to ensure parameter names are unique in an operation (rename parameters that are not).		true
legacyDiscriminatorBehavior	This flag is used by OpenAPITools codegen to influence the processing of the discriminator attribute in OpenAPI documents. This flag has no impact if the OAS document does not use the discriminator attribute. The default value of this flag is set in each language-specific code generator (e.g. Python, Java, go...)using the method toModelName. Note to developers supporting a language generator in OpenAPITools; to fully support the discriminator attribute as defined in the OAS specification 3.x, language generators should set this flag to true by default; however this requires updating the mustache templates to generate a language-specific discriminator lookup function that iterates over {{#mappedModels}} and does not iterate over {{children}}, {{#anyOf}}, or {{#oneOf}}.	true The mapping in the discriminator includes descendent schemas that allOf inherit from self and the discriminator mapping schemas in the OAS document. false The mapping in the discriminator includes any descendent schemas that allOf inherit from self, any oneOf schemas, any anyOf schemas, any x-discriminator-values, and the discriminator mapping schemas in the OAS document AND Codegen validates that oneOf and anyOf schemas contain the required discriminator and throws an error if the discriminator is missing.	true
optionalProjectFile	Generate Build.cs		true
prependFormOrBodyParameters	Add form or body parameters to the beginning of the parameter list.		false
reservedWordPrefix	Prefix to prepend to reserved words in order to avoid conflicts		r_
sortModelPropertiesByRequiredFlag	Sort model properties to place required parameters before optional parameters.		true
sortParamsByRequiredFlag	Sort method arguments to place required parameters before optional parameters.		true
unrealModuleName	Name of the generated unreal module (optional)		OpenAPI
variableNameFirstCharacterUppercase	Make first character of variable name uppercase (eg. value -> Value)		true

IMPORT MAPPING

Type/Alias	Imports
HttpFileInput	#include "OpenAPIHelpers.h"

INSTANTIATION TYPES

Type/Alias	Instantiated By

LANGUAGE PRIMITIVES

• FDateTime
• FGuid
• FString
• TArray
• TArray<uint8>
• TMap
• TSharedPtr<FJsonObject>
• bool
• double
• float
• int32
• int64

RESERVED WORDS

• alignas
• alignof
• and
• and_eq
• asm
• auto
• bitand
• bitor
• bool
• break
• case
• catch
• char
• char16_t
• char32_t
• class
• compl
• concept
• const
• const_cast
• constexpr
• continue
• decltype
• default
• delete
• do
• double
• dynamic_cast
• else
• enum
• explicit
• export
• extern
• false
• float
• for
• friend
• goto
• if
• inline
• int
• linux
• long
• mutable
• namespace
• new
• noexcept
• not
• not_eq
• nullptr
• operator
• or
• or_eq
• private
• protected
• public
• register
• reinterpret_cast
• requires
• return
• short
• signed
• sizeof
• static
• static_assert
• static_cast
• struct
• switch
• template
• this
• thread_local
• throw
• true
• try
• typedef
• typeid
• typename
• union
• unsigned
• using
• virtual
• void
• volatile
• wchar_t
• while
• xor
• xor_eq

FEATURE SET

Client Modification Feature

Name	Supported	Defined By
BasePath	✗	ToolingExtension
Authorizations	✗	ToolingExtension
UserAgent	✗	ToolingExtension

Data Type Feature

Name	Supported	Defined By
Custom	✗	OAS2,OAS3
Int32	✓	OAS2,OAS3
Int64	✓	OAS2,OAS3
Float	✓	OAS2,OAS3
Double	✓	OAS2,OAS3
Decimal	✓	ToolingExtension
String	✓	OAS2,OAS3
Byte	✓	OAS2,OAS3
Binary	✓	OAS2,OAS3
Boolean	✓	OAS2,OAS3
Date	✓	OAS2,OAS3
DateTime	✓	OAS2,OAS3
Password	✓	OAS2,OAS3
File	✓	OAS2
Array	✓	OAS2,OAS3
Maps	✓	ToolingExtension
CollectionFormat	✓	OAS2
CollectionFormatMulti	✓	OAS2
Enum	✓	OAS2,OAS3
ArrayOfEnum	✓	ToolingExtension
ArrayOfModel	✓	ToolingExtension
ArrayOfCollectionOfPrimitives	✓	ToolingExtension
ArrayOfCollectionOfModel	✓	ToolingExtension
ArrayOfCollectionOfEnum	✓	ToolingExtension
MapOfEnum	✓	ToolingExtension
MapOfModel	✓	ToolingExtension
MapOfCollectionOfPrimitives	✓	ToolingExtension
MapOfCollectionOfModel	✓	ToolingExtension
MapOfCollectionOfEnum	✓	ToolingExtension

Documentation Feature

Name	Supported	Defined By
Readme	✗	ToolingExtension
Model	✓	ToolingExtension
Api	✓	ToolingExtension

Global Feature

Name	Supported	Defined By
Host	✓	OAS2,OAS3
BasePath	✓	OAS2,OAS3
Info	✓	OAS2,OAS3
Schemes	✗	OAS2,OAS3
PartialSchemes	✓	OAS2,OAS3
Consumes	✓	OAS2
Produces	✓	OAS2
ExternalDocumentation	✓	OAS2,OAS3
Examples	✓	OAS2,OAS3
XMLStructureDefinitions	✗	OAS2,OAS3
MultiServer	✗	OAS3
ParameterizedServer	✗	OAS3
ParameterStyling	✗	OAS3
Callbacks	✓	OAS3
LinkObjects	✗	OAS3

Parameter Feature

Name	Supported	Defined By
Path	✓	OAS2,OAS3
Query	✓	OAS2,OAS3
Header	✓	OAS2,OAS3
Body	✓	OAS2
FormUnencoded	✓	OAS2
FormMultipart	✓	OAS2
Cookie	✓	OAS3

Schema Support Feature

Name	Supported	Defined By
Simple	✓	OAS2,OAS3
Composite	✓	OAS2,OAS3
Polymorphism	✓	OAS2,OAS3
Union	✗	OAS3

Security Feature

Name	Supported	Defined By
BasicAuth	✓	OAS2,OAS3
ApiKey	✓	OAS2,OAS3
OpenIDConnect	✗	OAS3
BearerToken	✓	OAS3
OAuth2_Implicit	✓	OAS2,OAS3
OAuth2_Password	✓	OAS2,OAS3
OAuth2_ClientCredentials	✓	OAS2,OAS3
OAuth2_AuthorizationCode	✓	OAS2,OAS3

Wire Format Feature

Name	Supported	Defined By
JSON	✓	OAS2,OAS3
XML	✓	OAS2,OAS3
PROTOBUF	✗	ToolingExtension
Custom	✗	OAS2,OAS3