Learn FEATHERSJS with Real Code Examples

Install Node.js and npm/yarn

Create a new project: `npm init @feathersjs/app my-app`

Choose REST, WebSocket, and database adapters during setup

Install additional packages as needed

Run project using `npm start`

Install Node.js and npm/yarn

Install Feathers CLI globally or via npx

Create a new FeathersJS app

Configure services, adapters, and hooks

Run the server locally and verify setup

config/default.json - app configuration

src/app.js/ts - main application instance

src/services/ - service definitions

src/hooks/ - hook definitions

public/ - optional static assets

npx @feathersjs/cli generate app - scaffold project

npx @feathersjs/cli generate service - create service

npm start - run app

npm test - run tests

Use hooks to enhance service behavior

UTF-8 support by default

Custom messages can be localized

Integration with i18n npm packages

Locale selection handled in hooks or services

Multi-language support possible with adapters

APIs accessible via REST or WebSocket clients

Supports CORS for cross-origin requests

JSON API conforms to standard formats

Integration with frontend accessibility practices

Testing via automated API tests

Primarily backend-focused; integrates with any frontend

Can serve static assets from `public/`

Supports REST/JSON for SPA frontends

Optional templating via Express middleware

Works with React, Vue, Angular, or mobile clients

Services manage business and application state

Hooks modify state pre/post service method execution

Channels manage state for real-time updates

Adapters handle persistent state in databases

Application instance holds global state and configuration

Persistent data via adapters (SQL/NoSQL)

In-memory storage for development/testing

Real-time updates broadcast via channels

Validation ensures correct data structure

Caching for performance optimization if needed