Node JS API Doc⚡️

NPM package to generate the API docs based on the open API file with multiple UI support

Bug report · Feature request

---

This package already supports NestJS and ExpressJS.

At this point, we are focusing on adding examples with many js-doc libraries. In the future, we will create our open API doc generation, "One Code for All Frameworks", but don't worry we are still making it support with other libraries.

Features 🚀

1. Support multiple API doc platform UI, options: Swagger, Stoplight, and Redoc
2. Easy to change the UI by query params ?ui=swagger|stoplight|redoc or UI Switcher at the bottom right of the page
3. Easy implementation, no need to refactor your existing code

Installation 🚀

Install @didik-mulyadi/nodejs-api-doc using pnpm/npm/yarn:

pnpm add @didik-mulyadi/nodejs-api-doc

# OR

npm install @didik-mulyadi/nodejs-api-doc

# OR

yarn add @didik-mulyadi/nodejs-api-doc

Usage 💻

After we set up the package correctly, we can switch the UI in your docs with this.

For example, your API doc location is `http://localhost:3000/docs

1. Use Swagger UI, http://localhost:3000/docs?ui=swagger

2. Use Stoplight UI, http://localhost:3000/docs?ui=stoplight

3. Use Redoc UI, http://localhost:3000/docs?ui=redoc

For code examples, see the examples directory or click.

Compatibility ⚙️

This package supports any package/library that returns the open API object. These are tested framework and library that is compatible with our package:

Library	Support
Nest JS + Fastify with @nestjs/swagger	✅
Nest JS + Express with @nestjs/swagger	✅
Express with swagger-jsdoc	✅

Implementation 💻

Here's an example of how to use this package:

nodejs-api-doc with Nest Fastify + @nest/swagger

Step:

1. Modify your src/main.ts with the below steps
2. Create a swagger config with new DocumentBuilder()
3. Generate open API document object with SwaggerModule.createDocument(app, config)
4. Setup nodejs-api-doc with new NestApiDoc
5. Start nodejs-api-doc with nestApiDoc.start()

import { NestApiDoc } from '@didik-mulyadi/nodejs-api-doc'

async function bootstrap() {
  const app = await NestFactory.create<NestFastifyApplication>(
    AppModule,
    new FastifyAdapter()
  )
  // swagger
  const config = new DocumentBuilder()
    .setTitle('Node.js API Docs')
    .setDescription('This API provides ...')
    .setVersion('0.0.1')
    .build()
  const document = SwaggerModule.createDocument(app, config)

  // nodejs-api-doc
  const nestApiDoc = new NestApiDoc(app, document, {
    defaultUI: 'stoplight',
    customPath: '/docs',
  })
  nestApiDoc.start()

  // Run the nestjs
  await app.listen(8080, '0.0.0.0')
}

nodejs-api-doc with Nest Express + @nest/swagger

Step:

1. Modify your src/main.ts with the below steps
2. Create a swagger config with new DocumentBuilder()
3. Generate open API document object with SwaggerModule.createDocument(app, config)
4. Setup nodejs-api-doc with new NestApiDoc
5. Start nodejs-api-doc with nestApiDoc.start()

import { NestApiDoc } from '@didik-mulyadi/nodejs-api-doc'

async function bootstrap() {
  const app = await NestFactory.create(AppModule)
  // swagger
  const config = new DocumentBuilder()
    .setTitle('Node.js API Docs')
    .setDescription('This API provides ...')
    .setVersion('0.0.1')
    .build()
  const document = SwaggerModule.createDocument(app, config)

  // nodejs-api-doc
  const nestApiDoc = new NestApiDoc(app, document, {
    defaultUI: 'stoplight',
    customPath: '/docs',
  })
  nestApiDoc.start()

  // Run the nestjs
  await app.listen(8080, '0.0.0.0')
}

nodejs-api-doc with Express + swagger-jsdoc

Step:

1. Modify your server.js or main.js with the below steps
2. Call the swagger-jsdoc const document = swaggerJsdoc(options)
3. Setup nodejs-api-doc const expressApiDoc = new ExpressApiDoc(app, document)
4. Start nodejs-api-doc expressApiDoc.start()

const { ExpressApiDoc } = require('@didik-mulyadi/nodejs-api-doc')

const app = express()

...

// swagger-jsdoc
const options = {
  definition: {
    openapi: '3.1.0',
    info: {
      title: 'Node JS API Docs with Express',
      version: '0.1.0',
      description:
        'This is a simple CRUD API application made with Express and documented with Swagger',
      license: {
        name: 'MIT',
        url: 'https://spdx.org/licenses/MIT.html',
      },
      contact: {
        name: 'Didik Mulyadi',
        url: 'https://www.linkedin.com/in/didikmulyadi/',
        email: 'didikmulyadi12@gmail.com',
      },
    },
    servers: [
      {
        url: 'http://localhost:3000',
      },
    ],
  },
  apis: ['./routes/*.js'],
}
const document = swaggerJsdoc(options)

// Nodejs-api-doc
const expressApiDoc = new ExpressApiDoc(app, document)
expressApiDoc.start()

app.listen(3000)

Configuration options ⚙️

Working with Helmet

Nest.JS Fastify Helmet

import { NestApiDoc, helmetConfig } from '@didik-mulyadi/nodejs-api-doc';

async function bootstrap() {
  ...
  await app.register(helmet, helmetConfig.nodeApiDocHelmetOption);
  ...
}

Bugs or Requests 🐛

If you found any issues or have a good suggestion, feel free to open an issue

TODO

We are still updating this package, to make it more useful and easy to use. Here are the next that author wants to do

• Add readme for bug_report.md
• Add readme for feature_request.md

Find Me 📖

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