A guide to cookies in Next.js

The article explores the management of cookies within the Next.js framework, detailing how to handle cookies in both server and client components, as well as in middleware, with updates for Next.js v14. It provides insights into the differences between client-side and server-side cookies, emphasizing the importance of attributes like httpOnly for security. The text introduces two packages, react-cookie and cookies-next, explaining their integration and use cases within Next.js, with examples of setting, reading, and deleting cookies. The article also addresses common issues, such as the sameSite attribute, and suggests solutions while highlighting the significance of cookies in enhancing user experience and addressing privacy concerns. Additionally, it touches on the implementation of cookies in API routes and middleware, providing practical code examples. The narrative concludes by recommending tools like LogRocket for monitoring and debugging Next.js applications, underscoring the importance of cookies in modern web development.