Q171. What is React Server Components (RSC) in App Router?
React Server Components (RSC) are a new React feature that allows components to be rendered on the server. In the App Router, components are Server Components by default....
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Q172. How do you handle error boundaries in App Router?
You can create error boundaries using the `error.js` file in a route segment. This file defines UI to render when an error is thrown within that segment. ```jsx // app/er...
Q173. How do you differentiate between server and client components in Next.js?
In Next.js, components are Server Components by default. To differentiate and create Client Components, you need to add the `"use client"` directive at the top of the com...
Q174. How do you handle internationalization (i18n) in Next.js with the App Router?
Next.js provides built-in support for internationalization (i18n) in the App Router. You can configure i18n settings in the `next.config.js` file. ```js // next.config.js...
Q175. What is use server, why and when to use it in Next.js?
The `"use server"` directive in Next.js is used to indicate that a function should be executed on the server side. It allows you to write server-side logic that can be ca...
Q176. What are the best practices of Next.js API routes?
- Use proper HTTP methods (GET, POST, PUT, DELETE) for different operations. - Validate and sanitize input data to prevent security vulnerabilities. - Handle errors grace...
Q177. How to use proper HTTP methods in Next.js API routes?
In Next.js API routes, you can define different functions for each HTTP method (GET, POST, PUT, DELETE) within the same route file. This allows you to handle different ty...
Q178. How to validate and sanitize input data in Next.js API routes?
To validate and sanitize input data in Next.js API routes, you can use libraries like `Joi`, `Yup`, or `validator.js`. These libraries help ensure that the data received ...
Q179. How to handle errors in Next.js API routes?
To handle errors in Next.js API routes, you can use try-catch blocks to catch exceptions and return appropriate HTTP status codes and error messages. This ensures that cl...
Q180. How to use middleware in Next.js API routes?
In Next.js, you can use middleware to run code before your API route handlers. Middleware can be used for tasks like authentication, logging, or modifying requests and re...