Putting arrays inside of objects using Swagger 2.0 and YAML - yaml

I am currently learning how to document using Swagger because my company is evaluating using it as a standard way of documenting for upcoming projects.
I read online that using YAML is easier to read than using JSON, and since YAML is a subset of JSON I figured it would be alright.
I'm working on the response for the 200 code, I would like to represent something similar to the following structure:
responses:
200:
description: OK.
schema:
title: response
type: object
items:
properties:
title: user
type: array
items:
id:
type: string
name:
type: string
status:
type: integer
Basically I return an object called "response" that contains two variables: An array called "user" that contains several strings (I included just two for the sake of clarity) and another variable (outside of the "user" array) called "status" that contains an integer.
The above code doesn't work, and the editor notifies me that it isn't a "valid response definition".
I'm not sure how to tackle this. I'd appreciate some help on what I'm doing wrong.

Basically I return an object called "response" that contains two variables: An array called "user" that contains several strings (I included just two for the sake of clarity) and another variable (outside of the "user" array) called "status" that contains an integer.
Based on your description, the response is supposed to be as follows (assuming the response is JSON). Basically, you have an object with a nested object:
{
"user": {
"id": "12345",
"name": "Alice"
},
"status": 0
}
This response can be defined as follows:
responses:
200:
description: OK.
schema:
title: response
type: object
required: [user, status]
properties:
user:
type: object
required: [id, name]
properties:
id:
type: string
name:
type: string
status:
type: integer
For convenience, complex schemas with nested objects can be broken down into individual object schemas. Schemas can be written in the global definitions section and referenced from other places via $ref. This way, for example, you can reuse the same schema in multiple operations/responses.
responses:
200:
description: OK.
schema:
$ref: "#/definitions/ResponseModel"
definitions:
ResponseModel:
title: response
type: object
properties:
user:
$ref: "#/definitions/User"
status:
type: integer
required:
- user
- status
User:
type: object
properties:
id:
type: string
name:
type: string
required:
- id
- name

Related

Enumerating an array of exactly 2 (slightly different) objects in OpenAPI 3.1.0?

I need to document a REST endpoint that takes the following request body:
{
"variables": [
{
"name": "groupGuid",
"value": "...",
"typeConstraint": "string",
},
{
"name": "addMembership",
"value": "...",
"typeConstraint": "boolean",
}
]
}
The variables array must take exactly 2 objects:
one with the required name groupGuid and typeConstraint string,
and the other with the required name addMembership and typeConstraint boolean.
The type of their respective values are specified by typeConstraint, but the actual values of the value properties are otherwise unconstrained.
Currently, I've got this, which is very underspecified (and possibly wrong) and relies on notes I've manually included:
'/test':
post:
requestBody:
content:
application/json:
schema:
type: object
properties:
variables:
type: array
uniqueItems: true
description: 'Must contain exactly 2 objects, with the following `name`s: (1) `groupGuid`: GUID of the group, (2) `addMembership`: Whether the task will add (true) or remove (false) members from the group.'
items:
type: object
additionalProperties: false
properties:
name:
enum:
- groupGuid
- addMembership
type: string
value:
type:
- string
- boolean
typeConstraint:
type: string
enum:
- string
- boolean
description: The type of `value`.
Is it possible to properly spec these requirements in YAML / OpenAPI 3.1.0, and if so, how? Thanks.
If what you want is to show both objects in the example body and accept either or both of them, perhaps you could use anyOf.
Below an example
paths:
/test:
post:
tags:
- Test
description: "Must contain exactly 2 objects, with the following `name`s: (1) `groupGuid`: GUID of the group, (2) `addMembership`: Whether the task will add (true) or remove (false) members from the group."
requestBody:
required: true
content:
application/json:
schema:
properties:
variables:
type: array
uniqueItems: true
items:
anyOf:
- $ref: '#/components/schemas/Object1'
- $ref: '#/components/schemas/Object2'
responses:
'200':
description: Sucess
components:
schemas:
Object1:
type: object
description: "The value here is string"
properties:
name:
type: string
value:
type: string
typeConstraint:
type: string
Object2:
type: object
description: "The value here is boolean"
properties:
name:
type: string
value:
type: string
typeConstraint:
type: boolean

How to set EXAMPLE value for array of a defined component in OpenAPI YAML?

I have the following component defined in OpenAPI:
Template:
type: object
properties:
Callback:
description: 'If set, this url will be called with a POST when a job completes. If the text "{guid}" is in the url, that text will be replaced with the Guid for the callback.'
type: string
OutputFormat:
type: string
description: 'Generate the document in the provided format.'
enum: [pdf, docx, xlsx, pptx, txt, html, prn, csv, rtf, jpg, png, svg, eps, bmp, gif]
Data:
description: 'The source of the template- embedded or external. Embed template as a Base64-encoded string.'
type: string
format: base64
ConnectionString:
description: "Set this to provide the template as a connection string of the template's location."
type: string
Format:
type: string
description: 'Format of the template. Auto-determined if not provided.'
enum: [docx, html, xlsx, pptx]
Properties:
description: "Windward properties for this document. These override any properties set in the configuration file on the server side."
type: array
items:
$ref: '#/components/schemas/Property'
xml:
wrapped: true
Parameters:
description: "A set of input parameters for this document. The parameters are global and shared among all data sources."
type: array
items:
$ref: '#/components/schemas/Parameter'
xml:
wrapped: true
Datasources:
description: "The datasources to apply to the template. The datasources are applied simultaneously."
type: array
items:
$ref: '#/components/schemas/Datasource'
xml:
wrapped: true
Tag:
type: string
description: "Anything you want. This is passed in to the repository & job handlers and is set in the final generated document object. The RESTful engine ignores this setting, it is for the caller's use."
TrackImports:
type: boolean
description: "Return all imports with the generated document."
TrackErrors:
type: integer
minimum: 0
maximum: 3
description: "Enable or disable the error handling and verify functionality."
MainPrinter:
type: string
description: "If you are using printer output use to specify main printer. Printer must be recognized by Network"
FirstPagePrinter:
type: string
description: "Set first page printer if main printer is already set"
PrinterJobName:
type: string
description: "Assign print job name"
PrintCopies:
type: integer
description: "Set number of copies to print"
PrintDuplex:
type: string
description: "Selects the printer duplex mode. Only if supported by the printer."
If you take a look at the Datasources entry, it is an array of Datasource component:
Datasources:
description: "The datasources to apply to the template. The datasources are applied
simultaneously."
type: array
items:
$ref: '#/components/schemas/Datasource'
I am trying to define an example request body for the POST request (the body you send is the template component I showed above). When I try to define the example values, this is what it looks like:
And this is what it renders to:
The problem is that it is showing it as a dictionary of dictionaries (with the "{}" brackets). I need it to be an array of dictionaries (with the "[]" on the outside). Does anyone know how to do this?
I tried doing this:
but Swagger Editor doesnt like that. Any ideas?
Just to make it clearer, this is what im trying to do:
# I NEED THIS
Datasources: [
Datasource: {
Name: "...",
Type: "..."
}
]
# INSTEAD OF THIS
Datasources: {
Datasource: {
Name: "...",
Type: "..."
}
}
Here's how to write an array (sequence) of objects in YAML. Note the dash before each array item.
example:
...
Datasources:
- Name:
Type: json
ConnectionString: some value
- Name: Name2
Type: yaml
ConnectionString: some other value
...
You can also use JSON array syntax [ ... ], but in this case the array must be written as valid JSON, that is, array items must be comma-separated, nested objects must be written as { ... } with all key names and string values enclosed in quotes, and so on.
example:
...
Datasources: [
{
"Name": null,
"Type": "json",
"ConnectionString": "some value"
},
{
"Name": "Name2",
"Type": "yaml",
"ConnectionString": "some other value"
}
]
Tag: ...

Spring boot code generated from swaggerhub is not able to throw 400 on additional properties

I've logged in to swaggerhub and generated a sample inventory API which is part of their template.
In codegen options selected spring as server. ticked on useBeanValidation checkbox. Generated the code, tested it. Validations are working properly as expected except only one thing. I don't want to allow any additional property on the POST payload.
NB: The openAPI specification doesn't have 'additionalProperties' flag specified. Which defaults it to 'false' in my understanding. I tried to explicitly specify the same too. but no luck. There is no exception thrown while I add an additionalProperty.
The OpenAPI specification
openapi: 3.0.0
servers:
# Added by API Auto Mocking Plugin
- description: SwaggerHub API Auto Mocking
url: https://virtserver.swaggerhub.com/xxxx/apionopenApi3/1.0.0
info:
description: This is a simple API
version: "1.0.0"
title: Simple Inventory API
contact:
email: you#your-company.com
license:
name: Apache 2.0
url: 'http://www.apache.org/licenses/LICENSE-2.0.html'
tags:
- name: admins
description: Secured Admin-only calls
- name: developers
description: Operations available to regular developers
paths:
/inventory:
get:
tags:
- developers
summary: searches inventory
operationId: searchInventory
description: |
By passing in the appropriate options, you can search for
available inventory in the system
parameters:
- in: query
name: searchString
description: pass an optional search string for looking up inventory
required: false
schema:
type: string
- in: query
name: skip
description: number of records to skip for pagination
schema:
type: integer
format: int32
minimum: 0
- in: query
name: limit
description: maximum number of records to return
schema:
type: integer
format: int32
minimum: 0
maximum: 50
responses:
'200':
description: search results matching criteria
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/InventoryItem'
'400':
description: bad input parameter
post:
tags:
- admins
summary: adds an inventory item
operationId: addInventory
description: Adds an item to the system
responses:
'201':
description: item created
'400':
description: 'invalid input, object invalid'
'409':
description: an existing item already exists
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/InventoryItem'
description: Inventory item to add
components:
schemas:
InventoryItem:
type: object
additionalProperties: False
required:
- id
- name
- manufacturer
- releaseDate
properties:
id:
type: string
format: uuid
example: d290f1ee-6c54-4b01-90e6-d701748f0851
name:
type: string
example: Widget Adapter
releaseDate:
type: string
format: date-time
example: '2016-08-29T09:12:33.001Z'
manufacturer:
$ref: '#/components/schemas/Manufacturer'
Manufacturer:
required:
- name
properties:
name:
type: string
example: ACME Corporation
homePage:
type: string
format: url
example: 'https://www.acme-corp.com'
phone:
type: string
example: 408-867-5309
type: object
additionalProperties: False
Got 400 for this payload on post API.
{
"id": "7f125802-7840-4ff0-8ddb-7c78c0948987",
"name11111": "Widget Adapter",
"releaseDate": "2016-08-29T09:12:33.001Z",
"manufacturer": {
"name": "ACME Corporation",
"homePage": "",
"phone": "408-867-5309"
}
}
Expected 400 but didn't get on this payload on post
{
"id": "7f125802-7840-4ff0-8ddb-7c78c0948983",
"name": "Widget Adapter",
"releaseDate": "2016-08-29T09:12:33.001Z",
"manufacturer": {
"name": "ACME Corporation",
"homePage": "",
"phone": "408-867-5309"
},
"newkey" : "newValue"
}
Can anybody pls help on this.. I want to completely disallow additional properties and throw a 400 on those requests..
The default for additionalProperties is actually True, not False.
Adding false does not cause the swagger-codegen for Spring to actually disallow additional fields though, annoyingly enough. After a few hours of running in the wrong direction I found the solution:
In application.properties
spring.jackson.deserialization.FAIL_ON_UNKNOWN_PROPERTIES=true
I had been having the same trouble and have tried to leverage filters but have had problems tying the models that are used in the automatic deserialization of #RequestBody to the servlet request and keeping the behavior consistent across model changes. Coming to that conclusion required writing quite a bit of unnecessary boilerplate and wasting a lot of time.
I also tried to find a way to inject some behavior in the automatic use of the model or any model annotation that would change how the model automatically disregards additional fields without reporting the bad request. After exhausting the road of annotations I found the solution.

how to pass multi value query params in swagger

I have following service in swagger.yml. The service is written so that page_id can be passed multiple times. e.g /pages?page_id[]=123&page_id[]=542
I checked this link https://swagger.io/specification/ but couldnt understand how could i update yml so i could pass id multiple times.
I see that i have to set collectionFormat but dont know how.
I tried updating it like below but no luck https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md.
it generates url like 'http://localhost:0000/pages?page_id=123%2C%20542`
'/pages':
get:
tags:
-
summary: get the list of pages
operationId: getPages
produces:
- application/json
parameters:
- name: page_id
in: query
description: some description
required: false
type: string
collectionFormat: multi
- name: page_detail
in: query
description: some description
required: false
type: string
responses:
'200':
description: OK
'401':
description: Authentication Failed
'404':
description: Not Found
'503':
description: Service Not Available
You are almost there. Name the parameter page_id[], make it type: array and use collectionFormat: multi:
parameters:
- name: page_id[]
in: query
description: some description
required: false
type: array
items:
type: string # or type: integer or whatever the type is
collectionFormat: multi
Note that the requests will be sent with the [ and ] characters percent-encoded as %5B and %5D, because they are reserved characters according to RFC 3986.
http://example.com/pages?page_id%5B%5D=123&page_id%5B%5D=456
From the docs:
parameters:
- name: id
in: path
description: ID of pet to use
required: true
schema:
type: array
style: simple
items:
type: string
You have to define the parameter as array.
How to add default values to the query parameter of type array:
parameters:
- name: 'liabilityType[]'
in: query
description: liabilityType filters the servicers list according to liability types.
required: false
schema:
type: array
items:
type: string
collectionFormat: multi
value:
- CAR
- HOUSE
I have attached a picture of how this code would look like in Swagger UI
[1]: https://i.stack.imgur.com/MSSaJ.png

Using multiple Swagger definitions at root of object

I am trying to create a Response Object that looks like this:
(simplified for example)
{
"data1": "1234"
"data2" : "445"
}
I have 2 definitions:
obj1:
type: object
properties:
data1:
type: string
obj2:
type: object
properties:
data2:
type: string
Then a 3rd definition that looks like this:
Main:
type: object
allOf:
- $ref: "#/definitions/ob1"
- $ref: "#/definitions/obj2"
I'm not sure if this is the correct way to merge both Obj1 and Obj 2 at the base of the Main object
The Swagger UI show the following
Responses
Code Description Schema
200 Success ⇄
Main {
all of:
obj1 { }
obj2 { }
}
What I'm unclear about is if it will set these objects at the root or if its stating 2 objects will be in the response???
I'm assuming its correct, hoping someone can confirm.
Swagger allows combining and extending model definitions using the allOf property of JSON Schema, in effect offering model composition. allOf takes in an array of object definitions that are validated independently but together compose a single object.
According to this - Swagger UI shows two objects which in fact be composed into one object with combined properties. You can try it by yourself:
StringObj:
type: object
properties:
stringId:
type: string
IntegerObj:
type: object
properties:
integerId:
type: integer
Composed:
description: A representation of a dog
allOf:
- $ref: '#/definitions/StringObj'
- $ref: '#/definitions/IntegerObj'
If you use Composed in - for example - body of your method and use try this operation Swagger creates json:
{
"stringId": "aaa",
"integerId": 123
}

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