adonis5-swagger

Swagger, AdonisJS, SwaggerUI

Create API documentation easily in Adonis 5 using Swagger

Installation
Sample Usage
Best usage
Custom UI
Build swagger spec file
Swagger modes
Production using
Swagger basic auth

Installation

npm i --save adonis5-swagger

Compile your code:

node ace serve --watch

Connect all dependences:

node ace invoke adonis5-swagger

For other configuration, please update the config/swagger.ts.

Sample Usage

Add new route:

Route.get('/api/hello', 'TestController.hello')

Create TestController using node ace make:controller Test command:

import { HttpContextContract } from '@ioc:Adonis/Core/HttpContext'

export default class TestController {
  /**
  * @swagger
  * /api/hello:
  *   get:
  *     tags:
  *       - Test
  *     summary: Sample API
  *     parameters:
  *       - name: name
  *         description: Name of the user
  *         in: query
  *         required: false
  *         type: string
  *     responses:
  *       200:
  *         description: Send hello message
  *         example:
  *           message: Hello Guess
  */
  public async hello({ request, response }: HttpContextContract) {
    const name = request.input('name', 'Guess')
    return response.send({ message: 'Hello ' + name })
  }
}

You can also define the schema in the Models:

import { BaseModel } from '@ioc:Adonis/Lucid/Orm'

/** 
*  @swagger
*  definitions:
*    User:
*      type: object
*      properties:
*        id:
*          type: uint
*        username:
*          type: string
*        email:
*          type: string
*        password:
*          type: string
*      required:
*        - username
*        - email
*        - password
*/
export default class User extends BaseModel {
}

Or create a separate file containing documentation from the APIs in either TS or YAML formats, sample structure:

project
├── app
├── config 
├── docs
│   ├── controllers
│   │   ├── **/*.ts
│   │   ├── **/*.yml
│   └── models
│       ├── **/*.ts
│       ├── **/*.yml

Best usage

Create files into docs/swagger, for example docs/swagger/auth.yml may contains:

/api/auth/login:
  post:
    tags:
      - Auth
    security: []
    description: Login
    parameters:
      - name: credentials
        in:  body
        required: true
        schema:
          properties:
            phone:
              type: string
              example: '1234567890'
              required: true
    produces:
      - application/json
    responses:
      200:
        description: Success

You can change default settings in config/swagger.ts
For other sample in YAML and JS format, please refer to this link.

Open http://localhost:3333/docs in your browser For detail usage, please check the Swagger specification in this SwaggerSpec

Custom UI

For using custom ui you should use own build of swagger ui. Current package contains only preconfigured and already built ui bundle. For example, you can use Adonis Edge for rendering ui with custom params.

First, install edge:

npm i @adonisjs/view

Once installed, run the following ace command to setup the package.

node ace invoke @adonisjs/view

Generate new template file using Adonis generator:

node ace make:view swagger

And then add route for custom UI:

Route.get('/', async ({ view }) => {
	const specUrl = 'your spec url'
	return view.render('swagger', { specUrl })
})

Your template should have similar content:

<!DOCTYPE html>
<head>
	<script src="//unpkg.com/swagger-ui-dist@3/swagger-ui-standalone-preset.js"></script>
	<script src="//unpkg.com/swagger-ui-dist@3/swagger-ui-bundle.js"></script>
	<link rel="stylesheet" href="//unpkg.com/swagger-ui-dist@3/swagger-ui.css"/>
	<script>
		window.onload = () => {
			let ui = SwaggerUIBundle({
				url: "{{ specUrl }}",
				dom_id: "#swagger-ui",
				presets: [
					SwaggerUIBundle.presets.apis,
					SwaggerUIBundle.SwaggerUIStandalonePreset
				],
				plugins: [
					SwaggerUIBundle.plugins.DownloadUrl
				],
			})

			window.ui = ui
		}
	</script>
</head>
<body>
	<div id="swagger-ui"></div>
</body>
</html>

It is the simplest way for using custom swagger ui, but of course you could use Webpack or another bundler tool for bundling your pre configured Swagger ui.

Build swagger spec file

You can build swagger spec file the next way:

Set specFilePath option to your swagger config:

const swaggerConfig = {
	specFilePath: 'docs/swagger.json'
}

And then run adonis command:

node ace swagger:generate

Generated file will be written to by path configured in config.

Swagger modes

This package support two modes:

PRODUCTION
RUNTIME

By default RUNTIME mode enabled. When RUNTIME mode enabled package rebuild swagger spec file on each request. When you use PRODUCTION you should build your swagger spec once and then package will be respond this file content on each request.

Production using

For using swagger in production you should make some preparations:

Setup swagger config:

const swaggerConfig = { 
	mode: process.env.NODE_ENV === 'production' ? 'PRODUCTION' : 'RUNTIME',
	specFilePath: 'docs/swagger.json'
}

Add post hook for npm build script to your package.json:

{
	"scripts": {
		"build": "npm run compile",
		"postbuild": "node ace swagger:generate && cp -a docs/ build/docs"
	}
}

Deliver your source code to production server.

Swagger basic auth

Package supports auth via basic auth schema. For using auth you should add config in config/swagger.ts

import Env from '@ioc:Adonis/Core/Env'

export default {
	// ...Swagger congig
	swaggerAuth: {
		authMiddleware: 'swagger-auth',

		authCredentials: {
			login: Env.get('SWAGGER_AUTH_LOGIN'),
			password: Env.get('SWAGGER_AUTH_PASSWORD')
		}
	}
}

Server.middleware.registerNamed({
  'swagger-auth': 'Adonis/Addons/Swagger/AuthMiddleware',
})

That's all. Your swagger docs secured by basic auth.

Instead of using credentials, you can use function for verifying access in more complex way.

import Env from '@ioc:Adonis/Core/Env'
import { verifyDocsAccess } from 'App/Services/Auth/Docs'

export default {
	// ...Swagger congig
	swaggerAuth: {
		authMiddleware: 'swagger-auth',

		authCheck: async (login, password) => {
			return await verifyDocsAccess({ login, password })
		}
	}
}

georginm / adonis5-swagger