Web Coding Center
NEXT.JS
Getting Started
Installation
Official Tutorials
App Router Special Files
page.js
layout.js
template.js
loading.js
error.js
global-error.js
not-found.js
default.js
route.js
middleware.js
instrumentation.js
App Router Special Folders
Route Group
Private Folder
Dynamic Segment
Dynamic Catch All Segments
Dynamic Optional Catch All Segments
Parallel Routes
Intercepting Routes
Public Static Assets
Route Handlers
Cookies & Headers
Redirects
URL Query Parameters
POST Body
CORS
Streaming
Non-UI Responses
Rendering Environments
Client Component
Server Component (Static Rendering)
Server Component (Dynamic Rendering)
Server Component (Streaming)
Server Component (Partial Prerendering)
Composition Tips
Server Actions
Definitions
Calls
Security
Miscellaneous
Caching
fetch memoization
Data Cache
Build Cache
Full Route Cache
Client Router Cache
Metadata
HTML head
HTML head (Fields)
HTML head (Unsupported Fields)
HTML head (Viewport)
JSON LD
Icon
OpenGraph Twitter Image
Sitemap
robots.txt
manifest.json
HTML Enhancements
Link
Form
Font
Script
Image
Video
CSS Incorporation
CSS Modules
Global CSS
External Stylesheets
Tailwind CSS
SASS
CSS in JS
Configurations
React Configurations
CSS Configurations
Rendering Configurations
images Configurations
Server Configurations
URL Configurations
redirects, rewrites & headers
Caching Configurations
Compiler Configurations
Packaging Configurations
Authentication
Deployment
Testing
Going Mobile
Function Reference
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Non-UI Responses
You can return data of types other than plain text and JSON.
To specify the format of the returned data, set the 'Content-Type' header.