How to Use Dynamic Route Handlers in 9router: Implementation Guide

Yes, 9router fully supports dynamic route handlers through Next.js API routes that export dynamic = "force-dynamic", forcing every request to execute fresh server-side code without static prerendering.

9router is an open-source AI routing layer built on Next.js that leverages dynamic route handlers to ensure real-time provider management and configuration updates. By utilizing Next.js 13+ App Router conventions, the codebase implements forced dynamic execution across all API endpoints, allowing the system to respond to authentication tokens, database changes, and external provider updates instantly.

How Dynamic Route Handlers Work in 9router

In 9router, every server-side API endpoint declares dynamic behavior through a static export at the top of the route file. According to the 9router source code, this pattern appears consistently across the codebase:

export const dynamic = "force-dynamic";

This directive instructs Next.js to bypass static site generation (SSG) and treat the route as server-rendered on every request. As implemented in src/app/api/providers/route.js, this enables the handler to read request bodies at runtime, query databases or external services on each call, and respect per-request headers such as authentication tokens.

The architecture works correctly in both the Vercel Edge Runtime and local Node.js servers, ensuring consistent behavior across deployment environments.

Creating a Dynamic API Route in 9router

You can add custom dynamic endpoints to 9router by following the same pattern used by the core APIs:

1. Create a file under src/app/api/[your-endpoint]/route.js (or .ts for TypeScript).
2. Export the dynamic constant at the top of the file.
3. Implement the handler using NextResponse from next/server.

Here is a minimal implementation:

// src/app/api/hello/route.js
import { NextResponse } from "next/server";

export const dynamic = "force-dynamic";

export async function GET(req) {
  const now = new Date().toISOString();
  return NextResponse.json({ message: "Hello from 9router!", time: now });
}

When you access /api/hello, the endpoint returns the current timestamp on every request because the route is forced to run dynamically.

Real-World Examples from the 9router Source Code

The 9router repository demonstrates several production-grade dynamic route implementations:

Provider Management Endpoint

The providers API at src/app/api/providers/route.js showcases a full-featured dynamic route that creates and lists AI provider connections. Because it exports force-dynamic, new provider configurations are immediately available without requiring a rebuild.

Streaming Usage Data

The usage stream endpoint in src/app/api/usage/stream/route.js demonstrates how dynamic routes handle streaming responses. This pattern ensures that real-time usage statistics flow to the client without caching or static generation delays.

Combo Definitions API

Located at src/app/api/combos/route.js, this endpoint handles CRUD operations for model combinations while maintaining dynamic execution. The dynamic = "force-dynamic" export ensures that combo definitions reflect the latest database state on every request.

Disabled Models Handler

The src/app/api/models/disabled/route.js file provides another example of dynamic route handlers in 9router, managing disabled model states with immediate consistency across requests.

Advanced Dynamic Route Patterns

Beyond basic API routes, 9router implements advanced patterns for handling runtime data and client-side optimization.

Processing Request Bodies at Runtime

Dynamic routes can parse incoming JSON bodies on each call. This example shows how to handle POST data:

// src/app/api/echo/route.js
import { NextResponse } from "next/server";

export const dynamic = "force-dynamic";

export async function POST(req) {
  const { payload } = await req.json();
  return NextResponse.json({ received: payload });
}

Because the route executes dynamically, it can echo any JSON payload sent by the client without caching previous request states.

Client-Side Dynamic Imports

While API routes use force-dynamic, 9router also leverages Next.js dynamic imports for client-side components. The translator dashboard at src/app/(dashboard)/dashboard/translator/page.js implements this pattern:

import dynamic from "next/dynamic";

const Editor = dynamic(() => import("@monaco-editor/react"), { ssr: false });

export default function TranslatorPage() {
  return <Editor height="60vh" theme="vs-dark" />;
}

This approach lazy-loads the Monaco editor only on the client, keeping the server bundle lightweight while maintaining dynamic functionality.

Summary

• 9router is built on Next.js and uses export const dynamic = "force-dynamic" in every API route to ensure server-side execution.
• Core endpoints like src/app/api/providers/route.js and src/app/api/usage/stream/route.js demonstrate production patterns for real-time data handling.
• You can create custom dynamic routes by placing files under src/app/api/ and exporting the dynamic constant.
• Dynamic routes support runtime request body parsing, database queries, and streaming responses without static prerendering.
• Client-side dynamic imports via next/dynamic complement the API patterns for optimized bundle sizes.

Frequently Asked Questions

Does 9router support static generation for API routes?

No, 9router explicitly disables static generation for API routes by exporting dynamic = "force-dynamic" in every endpoint. This ensures that authentication checks, database queries, and provider configurations are always current without requiring a rebuild.

Can I use TypeScript for dynamic route handlers in 9router?

Yes, you can create TypeScript route files (.ts or .tsx) under src/app/api/. The dynamic export and NextResponse imports work identically in TypeScript, providing full type safety for request and response objects.

How do dynamic route handlers affect performance in 9router?

Dynamic route handlers execute on every request, which introduces slight latency compared to static generation but ensures real-time accuracy. For high-traffic endpoints, 9router mitigates this through efficient database queries and optional edge runtime deployment.

Where should I place custom dynamic API routes in 9router?

Place custom routes under src/app/api/[endpoint-name]/route.js following the App Router convention. For example, src/app/api/custom-models/route.js would create an endpoint at /api/custom-models that automatically inherits the dynamic execution behavior.

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}