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OpenAPI Definition Starter

How to use this starter

Click use template button

Working on your OpenAPI Definition

Install

  1. Install Node JS.
  2. Clone this repo and run npm install in the repo root.

Usage

npm start

Starts the reference docs preview server.

npm run build

Bundles the definition to the dist folder.

npm test

Validates the definition.

Contribution Guide

Below is a sample contribution guide. The tools in the repository don't restrict you to any specific structure. Adjust the contribution guide to match your own structure. However, if you don't have a structure in mind, this is a good place to start.

Update this contribution guide if you adjust the file/folder organization.

The .redocly.yaml controls settings for various tools including the lint tool and the reference docs engine. Open it to find examples and read the docs for more information.

Schemas

Adding Schemas

  1. Navigate to the openapi/components/schemas folder.
  2. Add a file named as you wish to name the schema.
  3. Define the schema.
  4. Refer to the schema using the $ref (see example below).
Example Schema

This is a very simple schema example:

type: string
description: The resource ID. Defaults to UUID v4
maxLength: 50
example: 4f6cf35x-2c4y-483z-a0a9-158621f77a21

This is a more complex schema example:

type: object
properties:
  id:
    description: The customer identifier string
    readOnly: true
    allOf:
      - $ref: ./ResourceId.yaml
  websiteId:
    description: The website's ID
    allOf:
      - $ref: ./ResourceId.yaml
  paymentToken:
    type: string
    writeOnly: true
    description: |
      A write-only payment token; if supplied, it will be converted into a
      payment instrument and be set as the `defaultPaymentInstrument`. The
      value of this property will override the `defaultPaymentInstrument`
      in the case that both are supplied. The token may only be used once
      before it is expired.
  defaultPaymentInstrument:
    $ref: ./PaymentInstrument.yaml
  createdTime:
    description: The customer created time
    allOf:
      - $ref: ./ServerTimestamp.yaml
  updatedTime:
    description: The customer updated time
    allOf:
      - $ref: ./ServerTimestamp.yaml
  tags:
    description: A list of customer's tags
    readOnly: true
    type: array
    items:
      $ref: ./Tags/Tag.yaml
  revision:
    description: >
      The number of times the customer data has been modified.

      The revision is useful when analyzing webhook data to determine if the
      change takes precedence over the current representation.
    type: integer
    readOnly: true
  _links:
    type: array
    description: The links related to resource
    readOnly: true
    minItems: 3
    items:
      anyOf:
        - $ref: ./Links/SelfLink.yaml
        - $ref: ./Links/NotesLink.yaml
        - $ref: ./Links/DefaultPaymentInstrumentLink.yaml
        - $ref: ./Links/LeadSourceLink.yaml
        - $ref: ./Links/WebsiteLink.yaml
  _embedded:
    type: array
    description: >-
      Any embedded objects available that are requested by the `expand`
      querystring parameter.
    readOnly: true
    minItems: 1
    items:
      anyOf:
        - $ref: ./Embeds/LeadSourceEmbed.yaml

If you have an JSON example, you can convert it to JSON schema using Redocly's JSON to JSON schema tool.

Using the $ref

Notice in the complex example above the schema definition itself has $ref links to other schemas defined.

Here is a small excerpt with an example:

defaultPaymentInstrument:
  $ref: ./PaymentInstrument.yaml

The value of the $ref is the path to the other schema definition.

You may use $refs to compose schema from other existing schema to avoid duplication.

You will use $refs to reference schema from your path definitions.

Editing Schemas

  1. Navigate to the openapi/components/schemas folder.
  2. Open the file you wish to edit.
  3. Edit.

Paths

Adding a Path

  1. Navigate to the openapi/paths folder.
  2. Add a new YAML file named like your URL endpoint except replacing / with _ (or whichever character you prefer) and putting path parameters into curly braces like {example}.
  3. Add the path and a ref to it inside of your openapi.yaml file inside of the openapi folder.

Example addition to the openapi.yaml file:

'/customers/{id}':
  $ref: './paths/customers_{id}.yaml'

Here is an example of a YAML file named customers_{id}.yaml in the paths folder:

get:
  tags:
    - Customers
  summary: Retrieve a list of customers
  operationId: GetCustomerCollection
  description: |
    You can have a markdown description here.
  parameters:
    - $ref: ../components/parameters/collectionLimit.yaml
    - $ref: ../components/parameters/collectionOffset.yaml
    - $ref: ../components/parameters/collectionFilter.yaml
    - $ref: ../components/parameters/collectionQuery.yaml
    - $ref: ../components/parameters/collectionExpand.yaml
    - $ref: ../components/parameters/collectionFields.yaml
  responses:
    '200':
      description: A list of Customers was retrieved successfully
      headers:
        Rate-Limit-Limit:
          $ref: ../components/headers/Rate-Limit-Limit.yaml
        Rate-Limit-Remaining:
          $ref: ../components/headers/Rate-Limit-Remaining.yaml
        Rate-Limit-Reset:
          $ref: ../components/headers/Rate-Limit-Reset.yaml
        Pagination-Total:
          $ref: ../components/headers/Pagination-Total.yaml
        Pagination-Limit:
          $ref: ../components/headers/Pagination-Limit.yaml
        Pagination-Offset:
          $ref: ../components/headers/Pagination-Offset.yaml
      content:
        application/json:
          schema:
            type: array
            items:
              $ref: ../components/schemas/Customer.yaml
        text/csv:
          schema:
            type: array
            items:
              $ref: ../components/schemas/Customer.yaml
    '401':
      $ref: ../components/responses/AccessForbidden.yaml
  x-code-samples:
    - lang: PHP
      source:
        $ref: ../code_samples/PHP/customers/get.php
post:
  tags:
    - Customers
  summary: Create a customer (without an ID)
  operationId: PostCustomer
  description: Another markdown description here.
  requestBody:
    $ref: ../components/requestBodies/Customer.yaml
  responses:
    '201':
      $ref: ../components/responses/Customer.yaml
    '401':
      $ref: ../components/responses/AccessForbidden.yaml
    '409':
      $ref: ../components/responses/Conflict.yaml
    '422':
      $ref: ../components/responses/InvalidDataError.yaml
  x-code-samples:
    - lang: PHP
      source:
        $ref: ../code_samples/PHP/customers/post.php

You'll see extensive usage of $refs in this example to different types of components including schemas.

You'll also notice $refs to code samples.

Code samples

Automated code sample generations is enabled in the Redocly configuration file. Add manual code samples by the following process:

  1. Navigate to the openapi/code_samples folder.
  2. Navigate to the <language> (e.g. PHP) sub-folder.
  3. Navigate to the path folder, and add ref to the code sample.

You can add languages by adding new folders at the appropriate path level.

More details inside the code_samples folder README.