redoc/docs/redoc-vendor-extensions.md
2017-02-02 23:24:00 +02:00

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# ReDoc vendor extensions
ReDoc makes use of the following [vendor extensions](http://swagger.io/specification/#vendorExtensions)
### Swagger Object vendor extensions
Extend OpenAPI root [Swagger Object](http://swagger.io/specification/#swaggerObject)
#### x-tagGroups
| Field Name | Type | Description |
| :------------- | :-----------: | :---------- |
| x-tagGroups | [ [Tag Group Object](#tagGroupObject) ] | A list of tag groups |
###### Usage in Redoc
`x-tagGroups` is used to group tags in the side menu
#### <a name="tagGroupObject"></a>Tag Group Object
Information about tags group
###### Fixed fields
| Field Name | Type | Description |
| :---------- | :--------: | :---------- |
| name | string | The group name |
| tags | [ string ] | List of tags to include in this group
###### x-tagGroups example
json
```json
{
"x-tagGroups": [
{
"name": "User Management",
"tags": ["Users", "API keys", "Admin"]
},
{
"name": "Statistics",
"tags": ["Main Stats", "Secondary Stats"]
}
]
}
```
yaml
```yaml
x-tagGroups:
- name: User Management
tags:
- Users
- API keys
- Admin
- name: Statistics
tags:
- Main Stats
- Secondary Stats
```
#### <a name="logoObject"></a>Logo Object
### Info Object vendor extensions
Extends OpenAPI [Info Object](http://swagger.io/specification/#infoObject)
#### x-logo
| Field Name | Type | Description |
| :------------- | :-----------: | :---------- |
| x-logo | [Logo Object](#logoObject) | The information about API logo |
###### Usage in Redoc
`x-logo` is used to specify API logo. The corresponding image are displayed just above side-menu.
#### <a name="logoObject"></a>Logo Object
The information about API logo
###### Fixed fields
| Field Name | Type | Description |
| :-------------- | :------: | :---------- |
| url | string | The URL pointing to the spec logo. MUST be in the format of a URL
| backgroundColor | string | background color to be used. MUST be RGB color in [hexadecimal format] (https://en.wikipedia.org/wiki/Web_colors#Hex_triplet)
###### x-logo example
json
```json
{
"info": {
"version": "1.0.0",
"title": "Swagger Petstore",
"x-logo": {
"url": "https://rebilly.github.io/ReDoc/petstore-logo.png",
"backgroundColor": "#FFFFFF"
}
}
}
```
yaml
```yaml
info:
version: "1.0.0"
title: "Swagger Petstore"
x-logo:
url: "https://rebilly.github.io/ReDoc/petstore-logo.png"
backgroundColor: "#FFFFFF"
```
### Tag Object vendor extensions
Extends OpenAPI [Tag Object](http://swagger.io/specification/#tagObject)
#### x-traitTag
| Field Name | Type | Description |
| :------------- | :------: | :---------- |
| x-traitTag | boolean | In Swagger two operations can have multiply tags. This property distinguish between tags that are used to group operations (default) from tags that are used to mark operation with certain trait (`true` value) |
#### x-displayName
| Field Name | Type | Description |
| :------------- | :------: | :---------- |
| x-displayName | string | Define the text that is used for this tag in the menu and in section headings |
###### Usage in Redoc
Tags that have `x-traitTag` set to `true` are listed in side-menu but don't have any subitems (operations). Tag `description` is rendered as well.
This is useful for handling out common things like Pagination, Rate-Limits, etc.
###### x-traitTag example
json
```json
{
"name": "Pagination",
"description": "Pagination description (can use markdown syntax)",
"x-traitTag": true
}
```
yaml
```yaml
name: Pagination
description: Pagination description (can use markdown syntax)
x-traitTag: true
```
### Operation Object vendor extensions
Extends OpenAPI [Operation Object](http://swagger.io/specification/#operationObject)
#### x-code-samples
| Field Name | Type | Description |
| :------------- | :------: | :---------- |
| x-code-samples | [ [Code Sample Object](#codeSampleObject) ] | A list of code samples associated with operation |
###### Usage in ReDoc
`x-code-samples` are rendered on the right panel of ReDoc
#### <a name="codeSampleObject"></a>Code Sample Object
Operation code sample
###### Fixed fields
| Field Name | Type | Description |
| :---------- | :------: | :----------- |
| lang | string | Code sample language. Value should be one of the following [list](https://github.com/github/linguist/blob/master/lib/linguist/popular.yml) |
| source | string | Code sample source code |
###### Code Sample Object example
json
```json
{
"lang": "JavaScript",
"source": "console.log('Hello World');"
}
```
yaml
```yaml
lang: JavaScript
source: console.log('Hello World');
```
### Schema Object vendor extensions
Extends OpenAPI [Schema Object](http://swagger.io/specification/#schemaObject)
#### x-nullable
| Field Name | Type | Description |
| :------------- | :------: | :---------- |
| x-nullable | boolean | marks schema as a nullable |
###### Usage in ReDoc
Schemas marked as `x-nullable` are marked in ReDoc with the label Nullable