---
title: Documentation for the cpp-oatpp-client Generator
---

## METADATA

| Property | Value | Notes |
| -------- | ----- | ----- |
| generator name | cpp-oatpp-client | pass this to the generate command after -g |
| generator stability | STABLE | |
| generator type | CLIENT | |
| generator language | C++ | |
| generator default templating engine | mustache | |
| helpTxt | Generates a C++ API client (based on Oat++) | |

## CONFIG OPTIONS
These options may be applied as additional-properties (cli) or configOptions (plugins). Refer to [configuration docs](https://openapi-generator.tech/docs/configuration) for more details.

| Option | Description | Values | Default |
| ------ | ----------- | ------ | ------- |
|addExternalLibs|Add the Possibility to fetch and compile external Libraries needed by this Framework.| |true|
|reservedWordPrefix|Prefix to prepend to reserved words in order to avoid conflicts| |r_|
|variableNameFirstCharacterUppercase|Make first character of variable name uppercase (eg. value -&gt; Value)| |true|

## IMPORT MAPPING

| Type/Alias | Imports |
| ---------- | ------- |


## INSTANTIATION TYPES

| Type/Alias | Instantiated By |
| ---------- | --------------- |


## LANGUAGE PRIMITIVES

<ul class="column-ul">
<li>oatpp::Any</li>
<li>oatpp::Boolean</li>
<li>oatpp::Fields</li>
<li>oatpp::Float64</li>
<li>oatpp::Int32</li>
<li>oatpp::Int64</li>
<li>oatpp::Object</li>
<li>oatpp::String</li>
<li>oatpp::UnorderedSet</li>
<li>oatpp::Vector</li>
</ul>

## RESERVED WORDS

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

## FEATURE SET


### Client Modification Feature
| Name | Supported | Defined By |
| ---- | --------- | ---------- |
|BasePath|✗|ToolingExtension
|Authorizations|✗|ToolingExtension
|UserAgent|✗|ToolingExtension
|MockServer|✗|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
|Uuid|✗|
|Array|✓|OAS2,OAS3
|Null|✗|OAS3
|AnyType|✗|OAS2,OAS3
|Object|✓|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
|allOf|✗|OAS2,OAS3
|anyOf|✗|OAS3
|oneOf|✗|OAS3
|not|✗|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
|SignatureAuth|✗|OAS3
|AWSV4Signature|✗|ToolingExtension

### Wire Format Feature
| Name | Supported | Defined By |
| ---- | --------- | ---------- |
|JSON|✓|OAS2,OAS3
|XML|✓|OAS2,OAS3
|PROTOBUF|✗|ToolingExtension
|Custom|✗|OAS2,OAS3
