I am defining an API specification in SwaggerHub using OpenAPI 2.0. The /contacts
request returns an array of contacts. The definition is below:
/contacts:
get:
tags:
- contacts
summary: Get all the contacts
description: This displays all the contacts present for the user.
operationId: getContact
produces:
- application/json
- application/xml
responses:
200:
description: successful operation
schema:
$ref: '#/definitions/AllContacts'
400:
description: Invalid id supplied
404:
description: Contact not found
500:
description: Server error
definitions:
AllContacts:
type: array
items:
- $ref: '#/definitions/ContactModel1'
- $ref: '#/definitions/ContactModel2'
ContactModel1:
type: object
properties:
id:
type: integer
example: 1
firstName:
type: string
example: 'someValue'
lastName:
type: string
example: 'someValue'
ContactModel2:
type: object
properties:
id:
type: integer
example: 2
firstName:
type: string
example: 'someValue1'
lastName:
type: string
example: 'someValue1'
For some reason, it only returns the second object not the whole array of objects.
I am using OpenAPI 2.0 and suspect that the arrays are not well supported in this version.
An array of objects is defined as follows. The value of items
must be a single model that describes the array items.
definitions:
AllContacts:
type: array
items:
$ref: '#/definitions/ContactModel'
ContactModel:
type: object
properties:
id:
type: integer
example: 1
firstName:
type: string
example: Sherlock
lastName:
type: string
example: Holmes
By default, Swagger UI displays the array examples with just one item, like so:
[
{
"id": 1,
"firstName": "Sherlock",
"lastName": "Holmes"
}
]
If you want the array example to include multiple items, specify the multi-item example
in the array model:
definitions:
AllContacts:
type: array
items:
$ref: '#/definitions/ContactModel1'
example:
- id: 1
firstName: Sherlock
lastName: Holmes
- id: 2
firstName: John
lastName: Watson
I realise this is a bit offtopic, but I landed here looking for an example for OpenApi 3.0 . For others looking for the same thing, this is how to do it:
paths:
/product-category:
get:
summary: 'Returns all product categories'
operationId: readProductCategory
tags:
- productCategory
responses:
'200':
description: 'Details about all product categories'
content:
application/json:
schema:
type: array
items:
allOf:
- $ref: '#/components/schemas/Identifier'
- $ref: '#/components/schemas/ProductCategory'
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