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Learn Adonisjs - 1 Code Examples & CST Typing Practice Test

AdonisJS is a fully-featured, opinionated Node.js web framework for building server-side applications, APIs, and full-stack web apps with a focus on developer productivity and stability.

View all 1 Adonisjs code examples →
AdonisJS Simple Todo API

Learn ADONISJS with Real Code Examples

Updated Nov 27, 2025

Explain

AdonisJS provides a structured MVC architecture with built-in support for routing, ORM, validation, authentication, and more.

It emphasizes convention over configuration, offering a cohesive and batteries-included ecosystem.

Supports synchronous and asynchronous programming via modern JavaScript/TypeScript.

Integrates easily with relational databases, caching, queues, and WebSockets.

Designed for both small applications and scalable enterprise-grade projects.

Core Features

Routing and controllers

Lucid ORM for relational databases

Middleware and service providers

Validation and exception handling

Real-time WebSocket channels

Basic Concepts Overview

Controller - handles HTTP request logic

Model - interacts with database via Lucid ORM

View - renders templates (optional for APIs)

Middleware - pre/post-processing for requests

Route - maps HTTP requests to controllers

Project Structure

app/ - controllers, models, middleware

database/ - migrations, seeds

start/ - routes and kernel setup

resources/ - views and templates

config/ - framework and database configuration

Building Workflow

Define routes in `start/routes.ts`

Create controllers and define actions

Define models and migrations using Lucid ORM

Add middleware for authentication, logging, etc.

Start server and test API or web endpoints

Difficulty Use Cases

Beginner: basic REST API

Intermediate: CRUD app with authentication

Advanced: real-time app with WebSockets

Expert: full-stack enterprise application

Architect: multi-service, scalable backend

Comparisons

AdonisJS vs Express -> AdonisJS is opinionated and batteries-included; Express is minimalistic

AdonisJS vs NestJS -> Both TypeScript-friendly; NestJS uses decorators and dependency injection heavily

AdonisJS vs Koa -> Koa is middleware-centric and lightweight; AdonisJS is full-featured

AdonisJS vs Sails -> Sails is MVC and ORM-heavy; AdonisJS is modern and TypeScript-native

AdonisJS vs LoopBack -> LoopBack focuses on APIs; AdonisJS provides full-stack capabilities

Versioning Timeline

2015 - AdonisJS initial release

2016 - v2 with improved ORM and authentication

2018 - v4 with TypeScript support

2020 - v5 modern rewrite with TypeScript-first approach

2025 - Latest v5.x release with updated ecosystem and WebSocket enhancements

Glossary

Controller - handles request logic

Model - ORM representation of database table

Route - maps HTTP requests to controllers

Middleware - pre/post-processing requests

Lucid - ORM for database interactions

Installation Setup

Install Node.js and npm/yarn

Create a new project: `npm init adonis-ts-app my-app`

Install dependencies via `npm install`

Configure `.env` for environment variables

Start development server using `node ace serve --watch`

Environment Setup

Install Node.js and npm/yarn

Install AdonisJS CLI globally

Create new AdonisJS project

Configure database and environment

Start development server and verify

Config Files

.env - environment variables

config/app.ts - application config

config/database.ts - database connections

start/routes.ts - route definitions

app/ - controllers, models, middleware

Cli Commands

node ace new my-app - create project

node ace serve --watch - run dev server

node ace make:controller - create controller

node ace make:model - create model

node ace migration:run - run migrations

Internationalization

Use third-party i18n libraries

UTF-8 encoding supported by default

Locale management handled in controllers

Messages externalized for translation

Integrate with community i18n plugins if needed

Accessibility

Follow web standards in Edge templates

ARIA attributes can be included in templates

Supports CORS for cross-origin requests

CSRF protection for forms

Validation messages accessible to users

Ui Styling

Views rendered via Edge template engine

Supports HTML, CSS, and JS assets

Integrates with frontend frameworks (React/Vue/Angular)

Static files served via public directory

Responsive and accessible HTML templates

State Management

Stateless HTTP requests by default

Sessions managed via server-side storage

Cache layer for temporary data

WebSocket channels manage real-time state

Queues for async task processing

Data Management

Lucid ORM for relational databases

Migrations and seeds for schema and data

Validation and sanitization for input data

Relationships between models

External services integrated via HTTP or SDKs

Architecture

MVC architecture: Models, Views, Controllers

Service providers for dependency injection

Middleware for request/response lifecycle

Lucid ORM for database modeling and queries

WebSocket channels for real-time communication

Rendering Model

HTTP request -> Route -> Middleware -> Controller -> Response

Controller uses Models (Lucid ORM) to interact with database

Validation ensures request correctness

WebSocket channels handle real-time events

Response returned as JSON, HTML, or other formats

Architectural Patterns

MVC architecture

Middleware pipeline

Service providers for dependency injection

Event-driven WebSocket channels

Lucid ORM for data persistence

Real World Architectures

Enterprise REST API backend

Real-time chat or notification systems

Full-stack applications with Edge templates

Microservices integrated with queues

Multi-tenant SaaS applications

Design Principles

Batteries-included framework with conventions

MVC architecture and structured project layout

TypeScript-first for modern development

Middleware and service providers for flexibility

Real-time and scalable app support

Scalability Guide

Use clusters or PM2 for multiple instances

Integrate caching with Redis

Use queue system for background tasks

Optimize database queries with Lucid

Monitor performance metrics and scale horizontally

Migration Guide

Upgrade Node.js and AdonisJS CLI

Refactor deprecated API usage

Run migrations and seeds in database

Test routes, controllers, and WebSockets

Monitor logs and fix runtime issues

Performance Notes

Handles moderate to high traffic efficiently

Lucid ORM adds some overhead compared to raw SQL

WebSocket support allows real-time scalability

Use caching and queue systems for heavy workloads

Optimize queries and middleware for best performance

Security Notes

Use built-in authentication and authorization

Validate and sanitize all inputs

Enable HTTPS and secure cookies

Manage sensitive environment variables safely

Keep dependencies updated to avoid vulnerabilities

Monitoring Analytics

Server logs for request tracking

Integrate with Prometheus, Grafana, or ELK stack

Performance metrics for endpoints and WebSockets

Error tracking via Sentry or similar tools

Database query monitoring

Code Quality

Follow TypeScript and Node.js conventions

Write unit and integration tests

Use linters and formatters

Keep controllers, models, and services modular

Document APIs and WebSocket channels

Practical Examples

Build a CRUD REST API with Lucid ORM

Create a real-time chat application using WebSockets

Implement JWT-based authentication and authorization

Schedule tasks with AdonisJS queues

Integrate third-party APIs and services

Troubleshooting

Check logs using `node ace serve --watch`

Ensure database connection and migrations are correct

Verify routes and controller bindings

Check middleware execution order

Debug using Node.js inspector or logging

Testing Guide

Use Japa or Jest for unit and integration tests

Test controllers, models, and middleware

Use factories and seeds for test data

Run `node ace test` for automated test execution

Mock external services for reliable testing

Deployment Options

Deploy Node.js app on VPS or cloud servers

Dockerize the application for portability

Use PM2 or systemd for process management

Integrate CI/CD pipelines for automated builds

Horizontal scaling with multiple server instances

Tools Ecosystem

Node.js and npm/yarn

Lucid ORM for database management

Validator for input validation

WebSocket provider for real-time features

Queue system and task scheduler

Integrations

PostgreSQL, MySQL, SQLite, MSSQL

Redis for caching and queues

WebSocket clients for real-time apps

Third-party APIs via HTTP client

Cloud services and monitoring tools

Productivity Tips

Use CLI generators for controllers, models, and migrations

Leverage Lucid ORM relationships and query builders

Implement middleware for cross-cutting concerns

Use Edge templates efficiently for server-rendered views

Automate testing and deployment pipelines

Challenges

Learning MVC and framework conventions

Understanding Lucid ORM and relationships

Managing asynchronous code with Promises and async/await

Scaling WebSocket or queue-based applications

Integrating third-party services efficiently

Learning Path

Week 1: Learn Node.js and TypeScript basics

Week 2: Understand AdonisJS routing and controllers

Week 3: Work with Lucid ORM and migrations

Week 4: Implement middleware, authentication, and WebSockets

Week 5: Testing, deployment, and performance tuning

Skill Improvement Plan

Master TypeScript and modern JavaScript features

Write efficient Lucid queries and migrations

Implement authentication, validation, and authorization

Develop real-time features using WebSockets

Build scalable, maintainable full-stack apps

Interview Questions

What is AdonisJS and its main features?

Explain MVC pattern in AdonisJS

How does Lucid ORM work?

How to implement authentication in AdonisJS?

How to handle real-time communication with WebSockets?

Cheat Sheet

node ace new my-app - create project

node ace serve --watch - start dev server

node ace make:controller - generate controller

node ace make:model - generate model

node ace migration:run - run migrations

Books

Full-Stack Web Development with AdonisJS

Building APIs with AdonisJS

Mastering AdonisJS MVC Architecture

Real-Time Apps with AdonisJS and WebSockets

AdonisJS in Action

Tutorials

Getting started with AdonisJS

Building CRUD applications

Implementing authentication and authorization

Using Lucid ORM with database migrations

Creating real-time features with WebSockets

Official Docs

https://docs.adonisjs.com/

AdonisJS GitHub repository

Community tutorials and guides

Community Links

AdonisJS GitHub

Discord community

StackOverflow AdonisJS tag

Official documentation and guides

Community blogs and tutorials

Community Support

AdonisJS GitHub repository

AdonisJS Discord community

StackOverflow AdonisJS tag

Official documentation and guides

Community tutorials and blogs

Monetization

Open-source (MIT license) framework

Commercial development of enterprise applications

SaaS platforms using AdonisJS backends

Integration with real-time services and queues

Consulting and training for Node.js teams

Future Roadmap

Enhanced WebSocket and real-time features

Better TypeScript integration and typings

Expanded plugin and ecosystem support

Performance improvements for high-load applications

Improved documentation and tutorials

When Not To Use

Tiny microservices where minimal overhead is desired

Projects requiring minimal structure or unconventional architecture

Node.js apps that prefer lightweight frameworks like Express

Projects where TypeScript is not desired

Simple static sites with no backend logic

Final Summary

AdonisJS is a full-featured Node.js framework with MVC architecture.

Provides ORM, authentication, WebSockets, validation, and queues.

TypeScript-first with a batteries-included philosophy.

Ideal for full-stack applications, APIs, and enterprise-grade backends.

Structured conventions improve maintainability and developer productivity.

Faq

Is AdonisJS open-source? -> Yes, MIT License

Does AdonisJS support TypeScript? -> Yes, natively

Can AdonisJS handle real-time apps? -> Yes, with WebSockets

Does AdonisJS provide built-in authentication? -> Yes

Is AdonisJS suitable for enterprise apps? -> Yes, structured and maintainable

Code Sample Descriptions

1

AdonisJS Simple Todo API

// app/Models/Todo.js
const Model = use('Model');
class Todo extends Model {}
module.exports = Todo;

// app/Controllers/Http/TodoController.js
const Todo = use('App/Models/Todo');

class TodoController {
  async index({ response }) {
    const todos = await Todo.all();
    return response.json(todos);
  }

  async store({ request, response }) {
    const data = request.only(['title', 'completed']);
    const todo = await Todo.create(data);
    return response.status(201).json(todo);
  }
}

module.exports = TodoController;

// start/routes.js
Route.get('/todos', 'TodoController.index');
Route.post('/todos', 'TodoController.store');

Demonstrates a simple AdonisJS controller and model for managing Todo items via REST API.

Let’s Try →

Frequently Asked Questions about Adonisjs

What is Adonisjs?

AdonisJS is a fully-featured, opinionated Node.js web framework for building server-side applications, APIs, and full-stack web apps with a focus on developer productivity and stability.

What are the primary use cases for Adonisjs?

RESTful APIs and GraphQL backends. Full-stack web applications. Real-time apps via WebSockets. Enterprise-scale server-side applications. Prototyping and MVPs with structured architecture

What are the strengths of Adonisjs?

Structured and opinionated framework reduces boilerplate. Batteries-included with authentication, validation, ORM, and more. Supports TypeScript natively. Great for enterprise apps with complex backends. Strong conventions for maintainable code

What are the limitations of Adonisjs?

More heavyweight compared to lightweight frameworks like Express or Fastify. Opinionated structure may limit flexibility for unconventional architectures. Smaller ecosystem than Express.js. Learning curve for beginners unfamiliar with MVC. Less suitable for tiny microservices

How can I practice Adonisjs typing speed?

CodeSpeedTest offers 1+ real Adonisjs code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.

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