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Next.jsRoute Handler Generator

Route Handler Generator

Next.js route handler generator. Generate App Router API route boilerplate with typed NextRequest/NextResponse handlers.

100% browser-based — your data never leaves your device

HTTP MethodsTypeScriptMiddlewareOne-Click Copy
HomeNext.jsRoute Handler Generator
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Tool

Generate Next.js App Router API route boilerplate with type safety.

Route Handler Generator

Generate Next.js App Router API route handlers with proper TypeScript types.

HTTP Methods

Toggle GET, POST, PUT, PATCH, DELETE handlers as needed.

TypeScript

Generate typed request handlers with proper NextRequest/NextResponse types.

Middleware

Optionally include middleware, auth checks, and error handling.

One-Click Copy

Copy the complete route handler code to your clipboard.

import { NextRequest, NextResponse } from class="hljs-string">"next/server"

export async function GET(request: NextRequest) {
  // Handle GET/DELETE logic
  return NextResponse.json({ message: class="hljs-string">"OK" })
}

export async function POST(request: NextRequest) {
  const body = await request.json()
  // Handle POST logic
  return NextResponse.json({ message: class="hljs-string">"OK" })
}
343 chars44 words13 lines

Frequently Asked Questions

GET, POST, PUT, PATCH, and DELETE handlers are all supported. Toggle only the methods you need for clean, minimal boilerplate.

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App Router Path Builder

Visual builder for Next.js App Router routes including groups and parallel routes.

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next.config Visualizer

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Image Optimization Calculator

Calculate optimal image dimensions, sizes, and srcset for Next.js Image.

Route Handler Generator

Generate Next.js App Router API route boilerplate with type safety.

Back to Next.js Tools
Related:App Router Path BuilderMiddleware Matcher Buildernext.config VisualizerImage Optimization Calculator

How to Use the Free Client-Side Route Handler Generator

API route boilerplate in the App Router is repetitive but must stay consistent, with the right methods, types, and error handling every time. This generator produces a complete, typed route.ts from a few options.

  1. Toggle the HTTP methods you need, choosing GET, POST, PUT, PATCH, or DELETE, so only selected methods appear in the code.
  2. Optionally enable authentication checks, error handling wrappers, and CORS headers to be included in the handler.
  3. Click Generate to create the complete route handler file with proper TypeScript types and imports.
  4. Copy the generated code and paste it into your route.ts file in the App Router directory structure.

When to Use Route Handler Generator

Building a new endpoint is the moment when boilerplate either saves time or creates inconsistency, and this generator targets exactly that moment. Use it to generate typed API route boilerplate for a new feature endpoint, create CRUD route handlers with proper error handling and validation, and set up authenticated API routes with middleware and CORS headers. Developers shipping features quickly rely on it for endpoints that are correct by construction.

The generated code follows current App Router practice. HTTP method toggles produce only the handlers you need, the output uses typed NextRequest and NextResponse objects from next/server, and optional middleware, auth checks, and error handling wrappers slot in without extra effort. One-click copy delivers the whole file to your clipboard, ready for the route.ts location.

Route Handler Generator Tips and Best Practices

  1. Use NextResponse.json() for JSON responses. It sets the Content-Type header and stringifies the body automatically, unlike constructing NextResponse manually.
  2. Always export an OPTIONS handler for routes that need cross-origin access. Without it, browsers block CORS preflight requests.
  3. Reach for NextRequest and NextResponse from next/server for full type safety and built-in helpers for cookies and headers.
  4. Keep generated handlers minimal by toggling only the methods your endpoint actually needs.

Why Client-Side Privacy Matters for Generating API Endpoints and Internal Business Logic Boilerplate

Route handlers are the backend of your application, and the code you generate here often becomes the foundation for authentication, payments, and internal data flows. Pasting that boilerplate into an online generator shares the shape of your API and its security handling with a third party.

This generator runs entirely in your browser, so the code you produce never leaves your device. You can scaffold production endpoints and business logic privately, knowing the only copy of your API design is the one you create.

How to Use Route Handler Generator

1

Select HTTP methods

Toggle the HTTP methods you need — GET, POST, PUT, PATCH, DELETE. Only selected methods are included in the generated code.

2

Configure middleware options

Optionally enable authentication checks, error handling wrappers, and CORS headers to be included in the route handler.

3

Generate the handler

Click Generate to create the complete route handler file with proper TypeScript types and imports.

4

Copy to clipboard

Copy the generated code and paste it into your route.ts file in the App Router directory structure.

Examples

Practical examples to help you get the most out of Route Handler Generator:

GET handler with search params

import { NextRequest, NextResponse } from 'next/server'

export async function GET(request: NextRequest) {
  const searchParams = request.nextUrl.searchParams
  const query = searchParams.get('q')
  return NextResponse.json({ query })
}

POST handler with error handling

import { NextRequest, NextResponse } from 'next/server'

export async function POST(request: NextRequest) {
  try {
    const body = await request.json()
    return NextResponse.json(body, { status: 201 })
  } catch (error) {
    return NextResponse.json(
      { error: 'Invalid JSON' },
      { status: 400 }
    )
  }
}

Common Mistakes and How to Avoid Them

Not using NextResponse.json() for JSON responses

Use NextResponse.json() instead of new NextResponse(JSON.stringify(data)). NextResponse.json automatically sets the Content-Type header and stringifies the body.

Forgetting to handle OPTIONS requests for CORS

Always export an OPTIONS handler for routes that need cross-origin access. Without it, browsers block CORS preflight requests.

Frequently Asked Questions

What HTTP methods can I generate?

GET, POST, PUT, PATCH, and DELETE handlers are all supported. Toggle only the methods you need for clean, minimal boilerplate.

Does it generate TypeScript types?

Yes. The generated handlers use proper NextRequest and NextResponse types from next/server for full type safety.

Can I include middleware or auth checks?

Yes. The generator can optionally include authentication checks, error handling wrappers, and CORS headers in the generated route handler.

Is my code sent to a server?

No. All boilerplate generation happens locally in your browser. Your code never leaves your device.

Key Features

HTTP Methods

Toggle GET, POST, PUT, PATCH, DELETE handlers as needed.

TypeScript

Generate typed request handlers with proper NextRequest/NextResponse types.

Middleware

Optionally include middleware, auth checks, and error handling.

One-Click Copy

Copy the complete route handler code to your clipboard.

Common Use Cases

Route Handler Generator is useful in a variety of scenarios across different workflows:

Generate typed API route boilerplate for a new feature endpoint

Create CRUD route handlers with proper error handling and validation

Set up authenticated API routes with middleware and CORS headers

Tips & Best Practices

Use NextRequest for type safety

Always use NextRequest and NextResponse from next/server for full type safety and built-in cookie and header helpers.

Handle OPTIONS for CORS

Always implement an OPTIONS handler for routes that need to support cross-origin requests from web browsers.

More Tools in This Workspace

Explore more tools in the Next.js workspace:

App Router Path Builder

Visual builder for Next.js App Router routes including groups and parallel routes.

Middleware Matcher Builder

Build and test Next.js middleware config matcher patterns visually.

next.config Visualizer

Parse and explore next.config.js/ts options with descriptions and defaults.

Image Optimization Calculator

Calculate optimal image dimensions, sizes, and srcset for Next.js Image.