# 9router | decolua | Knowledge Base | Instagit

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GitHub Stars: 5k

Repository: https://github.com/decolua/9router

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## Articles

### [Does 9router Generate API Documentation? A Deep Dive into the Codebase](/decolua/9router/does-9router-provide-a-way-to-generate-api-documentation)

Discover if 9router generates API documentation. Learn how to build your own API docs from Next.js route files with this in-depth codebase analysis of decolua/9router.

- Tags: deep-dive
- Published: 2026-05-08

### [How to Structure Complex API Logic in 9router: A Modular Architecture Guide](/decolua/9router/what-is-the-recommended-way-to-structure-complex-api-logic-in-9router)

Structure complex API logic in 9router effectively. Learn to isolate route handlers, modularize MITM proxy logic, and use translator registries for efficient API management.

- Tags: architecture
- Published: 2026-05-08

### [How to Configure CORS for 9Router API Routes: A Complete Guide](/decolua/9router/how-to-configure-cors-for-9router-api-routes)

Learn to configure CORS for 9Router API routes with this comprehensive guide. Master preflight requests & standard headers for seamless integration and secure API access.

- Tags: how-to-guide
- Published: 2026-05-08

### [How to Integrate 9router API Handlers with a Frontend Application](/decolua/9router/how-to-integrate-9router-api-handlers-with-a-frontend-application)

Easily integrate your frontend with 9router API handlers. Utilize standard fetch requests to OpenAI-compatible endpoints for automatic backend authentication, translation, and streaming responses.

- Tags: how-to-guide
- Published: 2026-05-08

### [How to Define Nested API Routes in 9router: A Complete Guide to App Router Patterns](/decolua/9router/how-to-define-nested-api-routes-in-9router)

Learn to define nested API routes in 9router using App Router folder hierarchy. This guide explains how to structure your API for efficient routing in your application.

- Tags: how-to-guide
- Published: 2026-05-08

### [How to Use Middleware with 9Router API Handlers: Implementation Guide](/decolua/9router/can-i-use-middleware-with-9router-api-handlers)

Learn how to implement middleware with 9Router API handlers. Discover patching source code or using an external reverse-proxy for request interception.

- Tags: how-to-guide
- Published: 2026-05-08

### [How to Handle Errors in 9router API Routes: Patterns and Best Practices](/decolua/9router/how-to-handle-errors-in-9router-api-routes)

Master error handling in 9router API routes. Learn to create OpenAI-compatible JSON errors, normalize upstream failures, and manage rate limits with retry headers.

- Tags: best-practices
- Published: 2026-05-08

### [How to Access Request Parameters in 9router API Handlers](/decolua/9router/how-to-access-request-parameters-in-9router-api-handlers)

Learn to access request parameters in 9router API handlers. Easily extract path params, query strings, and JSON bodies from the NextRequest object for dynamic routing.

- Tags: how-to-guide
- Published: 2026-05-08

### [Supported HTTP Methods for 9router API Handlers](/decolua/9router/what-are-the-supported-http-methods-for-9router-api-handlers)

Discover the supported HTTP methods for 9router API handlers. Learn how to implement GET, POST, PUT, PATCH, and DELETE using named exports in Next.js App Router.

- Tags: api-reference
- Published: 2026-05-08

### [How to Define POST Requests in 9router API Routes](/decolua/9router/how-to-define-post-requests-in-9router-api-routes)

Easily define POST requests in 9router API routes. Learn to parse request bodies and return JSON responses efficiently using async POST functions and NextResponse.json.

- Tags: how-to-guide
- Published: 2026-05-08

### [How to Define GET Requests in 9router API Routes](/decolua/9router/how-to-define-get-requests-in-9router-api-routes)

Learn to define GET requests in 9router API routes. Export an async GET function from route.js and return a Web Response object. Master 9router API development.

- Tags: how-to-guide
- Published: 2026-05-08

### [How to Use Dynamic Route Handlers in 9router: Implementation Guide](/decolua/9router/can-i-use-dynamic-route-handlers-in-9router)

Learn how to implement dynamic route handlers in 9router using Nextjs API routes. Force fresh server-side code execution and avoid static prerendering for dynamic content.

- Tags: how-to-guide
- Published: 2026-05-08

### [Directory Structure for API Routes in 9router: A Complete Guide](/decolua/9router/what-is-the-directory-structure-for-api-routes-in-9router)

Learn the 9router API routes directory structure under src/app/api/. Discover how folder paths map to URL endpoints and implement handlers in route.js files. A complete Next.js guide.

- Tags: how-to-guide
- Published: 2026-05-08

### [How to Find API Route Handlers in 9router: Next.js App Router Navigation Guide](/decolua/9router/how-to-find-api-route-handlers-in-9router)

Discover how to find API route handlers in 9router's Next.js App Router implementation. Learn to locate and understand your REST API endpoints effectively.

- Tags: how-to-guide
- Published: 2026-05-08