How to retrieve the parameter value in Next.js version 13

Question

How to retrieve the parameter value in Next.js version 13

I need assistance with extracting the parameter value from a GET endpoint:

/api/image/id

The directory structure is as follows:

src/app/api/image/[id]/route.ts

However, when attempting to access the id parameter, I am receiving a result of null.

import { NextRequest, NextResponse } from "next/server";

export async function GET(request: NextRequest) {
  const id = request.nextUrl.searchParams.get("id");
  return NextResponse.json({ id }, { status: 200 }); // { "id": null }

I suspect that the issue may be related to the folder structure. Unfortunately, I have been unable to determine the correct folder setup for this.

Your assistance on this matter is greatly appreciated!

I have attempted renaming route.ts to [id].ts and relocating it inside the image folder without success.

typescript next.js

Answer 1

Answer №1

In the latest version of Next.js (13.2+), developers are now able to access parameters through the second parameter of the GET request.

import { NextRequest, NextResponse } from "next/server";

                                                // ⬇️ Here is the `params` property
export async function GET(request: NextRequest, { params }: { params: { id: string } } ) {

  return NextResponse.json({ id: params.id }, { status: 200 });

}

Previously, I attempted to retrieve parameters from the request object without success. It's possible that this may change in future updates as it is still an early version.

Answer 2

In the latest version of Next.js (13.2+), developers are now able to access parameters through the second parameter of the GET request.

import { NextRequest, NextResponse } from "next/server";

                                                // ⬇️ Here is the `params` property
export async function GET(request: NextRequest, { params }: { params: { id: string } } ) {

  return NextResponse.json({ id: params.id }, { status: 200 });

}

Previously, I attempted to retrieve parameters from the request object without success. It's possible that this may change in future updates as it is still an early version.

Answer 3

Answer №2

If you need to extract data from a URL, consider using the additional parameter available in the router handler known as context (documentation).

Imagine your URL is:

https://example.com/api/users/1

You can retrieve the value of its parameter by referencing context.params.userId. Here's an example demonstrating this concept:

export async function GET(request, context) {
  const userId = context.params.userId; // '1'
}

This code has been verified with the following setup:

// package.json
{
  "next": "13.2.4"
}

Answer 4

If you need to extract data from a URL, consider using the additional parameter available in the router handler known as context (documentation).

Imagine your URL is:

https://example.com/api/users/1

You can retrieve the value of its parameter by referencing context.params.userId. Here's an example demonstrating this concept:

export async function GET(request, context) {
  const userId = context.params.userId; // '1'
}

This code has been verified with the following setup:

// package.json
{
  "next": "13.2.4"
}

Answer 5

Answer №3

While browsing through the Next.js documentation, I stumbled upon this interesting snippet:

https://nextjs.org/docs/app/building-your-application/routing/dynamic-routes

const Post = ({ params }: { params: { slug: string } }) => {
  return <div>This is my post: {params.slug}</div>;
}
export default Post;

Answer 6

While browsing through the Next.js documentation, I stumbled upon this interesting snippet:

https://nextjs.org/docs/app/building-your-application/routing/dynamic-routes

const Post = ({ params }: { params: { slug: string } }) => {
  return <div>This is my post: {params.slug}</div>;
}
export default Post;

How to retrieve the parameter value in Next.js version 13

Answer №1

Answer №2

Answer №3

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