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Gain insights into AdonisJs fundamentals. Delve into routes, controllers, middleware, and hooks. Discover practical examples, illustrations, and quizzes to confidently build your full-stack applications.

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This course is a detailed guide to AdonisJs. AdonisJs, inspired by Laravel, is a Node.js framework that allows developers to build full-stack web applications and micro-API servers. 

In this course, you will cover the fundamentals: routes, controllers, middleware, hooks, and more. Each chapter contains code examples and illustrations to enhance your learning, and you will also be able to quiz yourself on the materials covered. 

By the time you are done with the course, you'll have plenty of hands-on practice, and will be able to confidently write your full-stack applications in AdonisJs.

Building Full-Stack Web Applications with AdonisJs

According to the Adonis [documentation](https://adonisjs.com/docs/4.1/extending-adonisjs), **hooks** can be used to execute code at a specific time in the application lifecycle. We register hooks inside **start/hooks.js**.

# Extending the validator

#key# Indicative: Indicative is a data validation library. #key# does not cover all the validation rules, so we sometimes have to add custom rules to the validator. Suppose we want to ensure that the username (provided through the form) does not contain the strings "aaa" and "bbb". To extend the validator, we will implement our validation function in **start/hooks.js**.

Learn how to use a hook to extend the validator by adding a custom rule.

Introduction

Routing and Middleware

Controllers and Views

Request and Response

Session, Validator, and Logger

Database

Hooks, Mail, and Events

Tests

Conclusion

Appendix

Using a Hook to Extend the Validator