🚂 generator-express-no-stress

Create awesome Express.js applications with best of breed tech including ES.next via Babel.js, structured logging with Pino, API validation and interactive documentation using an OpenAPI 3 or Swagger 2 spec, environment based config with dotenv, and linting with ESLint.

generator-express-no-stress gets you up and running in seconds. It's ridiculously easy to configure. Heck, just take the defaults. Start it. Write code.

This generator scaffolds a fully functioning REST API server, complete with interactive documentation, API request and response validation, structured logging, environment driven config, and more. Simply run the generator and smile :-D

Here's what you get!

Install

Requires Node 8 or greater

npm install -g yo generator-express-no-stress

• See here for use with Yarn and/or Docker
• See here for Node 6 support

Scaffold

yo express-no-stress myapp
cd myapp

Run

Run in development mode:

npm run dev

Package and run in production mode

npm run compile
npm start

Test

npm test

Debug

Run one of the following, then attach your favorite inspector e.g. VSCode:

# debug the server
npm run dev:debug

# debug the tests
npm run test:debug

Try it!

• Interactive API doc at http://localhost:3000/api-explorer
• Landing page at http://localhost:3000

Usage: CLI

yo express-no-stress [appname] [--yarn] [--docker]

| Option | default | Description | | ---------- | ------- | -------------------------------------------------------------------------- | | appname | myapp | The application folder | | --yarn | - | Use the yarn package manager, instead of npm | | --docker | | Install Docker artifacts including a Dockerfile |

Usage: Project

The sections below describe all usage options available once the project is generated/scaffolded.

npm targets

| Target | Description | | -------------------- | ------------------------------------------------------------------------ | | npm run dev | Run in development mode | | npm run dev:debug | Debug in development mode | | npm run test | Run tests | | npm run test:debug | Debug tests | | npm run lint | View a listing of all errors discovered by the linter | | npm run lint:fix | Fix all errors discovered by the linter | | npm run compile | Transpile source code for production use | | npm start | Run the in production mode. *Requires running npm run compile first |

Debug in VSCode

Add these contents to your .vscode/launch.json file

Debug in WebStorm

1. Start debug in development mode via npm run dev:debug
2. From the "Run" menu, select "Debug"
3. Select "Edit Configurations..."
4. From the list of Templates on the left side of the dialog, select "Attach to Node.js/Chrome"
5. Press the "Debug" button to attach the WebStorm debugger

Deploy to the Cloud

e.g. CloudFoundry

cf push myapp

Use Yarn

# scaffold
yo express-no-stress myapp --yarn
cd myapp

# run in development mode
yarn run dev

# run in production mode
yarn run compile
yarn start

# test
yarn test

What you get!

• Express.js - Fast, unopinionated , minimalist web framework for Node.js

• Babel.js - Use new syntax, right now without waiting for support

• Pino - Extremely fast node.js logger, inspired by Bunyan. It also includes a shell utility to pretty-print its log files

• dotenv - Loads environment variables from .env for nodejs projects

• ESLint - a pluggable linting utility for JavaScript and JSX

  Choose from the following ESLint lint rules:

  • Airbnb - A mostly reasonable approach to JavaScript
  • Prettier - Prettier is an opinionated code formatter

• Swagger - is a simple yet powerful representation of your RESTful API

• SwaggerUI - dynamically generate beautiful documentation and sandbox from a Swagger-compliant API

API Validation

Simply describe your APIs with Swagger and automagically get for free:

• Interactive documentation
• API request validation
• API response validation (OpenAPI 3 only. Disabled by default)
  • To enable set OPENAPI_ENABLE_RESPONSE_VALIDATION=true in .env

Interactive API Doc

API Validation!

Oops! I the API caller forgot to pass a name field, no stress, we've got this!

Structured Logging

Structured logging out of the box!

raw

pretty

Structured logging pretty printed by default - great for dev!

API Validation Example

Simply describe your APIs with Swagger and automatically get:

• API request validation
• Interactive documentation

example

Swagger API spec

swagger: '2.0'
info:
  version: 1.0.0
  title: myapp
  description: My cool app
basePath: /api/v1
tags:
  - name: Examples
    description: Simple example endpoints
  - name: Specification
    description: The swagger API specification

consumes:
  - application/json
produces:
  - application/json

definitions:
  ExampleBody:
    type: object
    title: example
    required:
      - name
    properties:
      name:
        type: string
        example: no_stress

paths:
  /examples:
    get:
      tags:
        - Examples
      description: Fetch all examples
      responses:
        200:
          description: Returns all examples
    post:
      tags:
        - Examples
      description: Create a new example
      parameters:
        - name: example
          in: body
          description: an example
          required: true
          schema:
            $ref: '#/definitions/ExampleBody'
      responses:
        200:
          description: Returns all examples

  /examples/{id}:
    get:
      tags:
        - Examples
      parameters:
        - name: id
          in: path
          required: true
          description: The id of the example to retrieve
          type: integer
      responses:
        200:
          description: Return the example with the specified id
        404:
          description: Example not found

  /spec:
    get:
      tags:
        - Specification
      responses:
        200:
          description: Return the API specification

Invoke a POST request via the Interactive doc

Linting

express-no-stress uses ESLint and provides two choices, Airbnb or Prettier.

To add your own ESLint customizations, edit.eslintrc.json.

Note that the Airbnb variant provides a slightly modified Airbnb base configuration.

FAQ

Q: How do I modify the example API and make it my own?

A: There are two key files that enable you to customize and describe your API:

1. server/routes.js - This references the implementation of all of your routes. Add as many routes as you like and point each route your express handler functions.
2. server/common/api.yaml - This file contains your OpenAPI spec. Describe your API here. It's recommended that you to declare any and all validation logic in this YAML. express-no-stress-typescript uses express-openapi-validator to automatically handle all API validation based on what you've defined in the spec.

Q: I previously generated an app, but I want to change the API root. How do I do this?

A: You need to make to small changes

1. Modify server/routes.js

   // Change your original path e.g. /api/v1/examples, to:
   app.use('/api/v2/examples', examplesRouter);

2. Modify server/common/api.yaml and update the api root:

  # Change e.g. /api/v1 to /api/v2
  servers:
  - url: /api/v2   

License

MIT

Contributors ✨

Thanks goes to these wonderful people (emoji key):

This project follows the all-contributors specification. Contributions of any kind welcome!