Introduction

Google ReCaptcha is an essential service for protecting web applications against spam, bots and abuse. In React, we can easily implement it using specialized libraries for each version. In this documentation, created by Andrés Hernández.

What will you learn about ReCaptcha V2?

  • How to integrate the "I'm not a robot" checkbox component into your forms.
  • Implementation of the visual challenge with images.
  • Basic configuration and token verification.
  • Practical example to protect a contact form.
  • Usage of the google-react-recaptcha-v2 package.

What will you learn about ReCaptcha V3?

  • Installation and initial configuration of the library.
  • Usage of the useRecaptcha hook and its configuration options.
  • Implementation with TypeScript and all its interfaces.
  • Advanced configurations: Trusted Types, CSP and multi-language.
  • Complete API: services, utilities and predefined constants.
  • Common error handling and recovery strategies.
  • Practical examples: contact forms, checkout and analytics.