Nominally Patriotic Meathead

    TypeScript icon, indicating that this package has built-in type declarations

    14.5.5 • Public • Published


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

    Maintainers Wanted GitHub Workflow Status npm downloads MIT license


    Version Hapi Joi Node Release Notes
    14.x >=19.0.0 @hapi/hapi >=17.0.0 joi >=12 #680
    13.x >=19.0.0 @hapi/hapi >=17.0.0 @hapi/joi >=12 #660
    12.x >=19.0.0 @hapi/hapi >=17.0.0 @hapi/joi >=12 #644
    11.x >=18.4.0 @hapi/hapi >=16.0.0 @hapi/joi >=8 #631
    10.x >=18.3.1 @hapi/hapi >=14.0.0 @hapi/joi >=8 #587
    9.x >=17 hapi <14.0.0 >=8 #487
    7.x <17 hapi ??? ??? #325


    You can add the module to your Hapi using npm:

    > npm install hapi-swagger --save

    hapi-swagger no longer bundles joi to fix #648. Install hapi-swagger with peer dependencies using:

    npx install-peerdeps hapi-swagger

    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


    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 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([
                plugin: HapiSwagger,
                options: swaggerOptions
        try {
            await server.start();
            console.log('Server running at:',;
        } catch(err) {

    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: Joi.object({
                    id : Joi.number()
                            .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.


    hapi-swagger exports its own typescript definition file that can be used when registering the plugin with Hapi. See example below:

    Install Typescript Definition Files

    npm i @types/hapi__hapi @types/hapi__inert @types/hapi__joi @types/hapi__vision @types/node hapi-swagger --save-dev

    Register Plugin with Typescript

    import * as Hapi from '@hapi/hapi';
    import * as HapiSwagger from 'hapi-swagger';
    // code omitted for brevity
    const swaggerOptions: HapiSwagger.RegisterOptions = {
        info: {
            title: 'Test API Documentation'
    const plugins: Array<Hapi.ServerRegisterPluginObject<any>> = [
            plugin: Inert
            plugin: Vision
            plugin: HapiSwagger,
            options: swaggerOptions
    await server.register(plugins);


    Read the contributing guidelines for details.


    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.


    npm i hapi-swagger

    DownloadsWeekly Downloads






    Unpacked Size

    113 kB

    Total Files


    Last publish


    • glennjones
    • robmcguinness