hapi-swagger

hapi-swagger

This is a OpenAPI (aka Swagger) plug-in for HAPI When installed it will self document the API interface in a project.

Compatibility

Version	hapi.js	Node	Release Notes
v10.x	>=18.3.1 @hapi/hapi	>=8	#587
9.x	>=17 hapi	>=8	#487
7.x	<17 hapi	???	#325

Installation

You can add the module to your HAPI using npm:

> npm install hapi-swagger --save

If you want to view the documentation from your API you will also need to install the inert and vision plugs-ins which support templates and static content serving.

> npm install @hapi/inert --save
> npm install @hapi/vision --save

Documentation

• Options Reference
• Usage Guide

Quick start

In your HAPI apps main JavaScript file add the following code to created a HAPI server object. You will also add the routes for you API as describe on hapijs.com site.

const Hapi = require('@hapi/hapi');
const Inert = require('@hapi/inert');
const Vision = require('@hapi/vision');
const HapiSwagger = require('hapi-swagger');
const Pack = require('./package');

(async () => {
    const server = await new Hapi.Server({
        host: 'localhost',
        port: 3000,
    });

    const swaggerOptions = {
        info: {
                title: 'Test API Documentation',
                version: Pack.version,
            },
        };

    await server.register([
        Inert,
        Vision,
        {
            plugin: HapiSwagger,
            options: swaggerOptions
        }
    ]);

    try {
        await server.start();
        console.log('Server running at:', server.info.uri);
    } catch(err) {
        console.log(err);
    }

    server.route(Routes);
})();

Tagging your API routes

As a project may be a mixture of web pages and API endpoints you need to tag the routes you wish Swagger to document. Simply add the tags: ['api'] property to the route object for any endpoint you want documenting.

You can even specify more tags and then later generate tag-specific documentation. If you specify tags: ['api', 'foo'], you can later use /documentation?tags=foo to load the documentation on the HTML page (see next section).

{
    method: 'GET',
    path: '/todo/{id}/',
    options: {
        handler: handlers.getToDo,
        description: 'Get todo',
        notes: 'Returns a todo item by the id passed in the path',
        tags: ['api'], // ADD THIS TAG
        validate: {
            params: {
                id : Joi.number()
                        .required()
                        .description('the id for the todo item'),
            }
        }
    },
}

Once you have tagged your routes start the application. The plugin adds a page into your site with the route /documentation, so the the full URL for the above options would be http://localhost:3000/documentation.

Contributing

Read the contributing guidelines for details.

Thanks

I would like to thank all that have contributed to the project over the last couple of years. This is a hard project to maintain, getting HAPI to work with Swagger is like putting a round plug in a square hole. Without the help of others it would not be possible.