Fetch favicon from database

[limpid cove]

Hi @unkempt mango. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

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I apologize, but I need to correct a misunderstanding in your question. There is currently no NextJS 15 version. The latest stable version of Next.js is 13, with version 14 in beta as of October 2023.

However, I can provide guidance on how to handle favicon fetching and fallback in a Next.js application based on the available information:

To fetch a favicon from a database and use a fallback if no result is found, you can use Next.js's built-in support for custom icons. Here's how you can approach this:

1. Create a custom icon route in your app directory. This can be a .js, .ts, or .tsx file.

2. In this file, you can fetch the favicon from your database using Prisma, and if no result is found, use a fallback image.

Here's an example of how you might implement this:

import { ImageResponse } from 'next/og'
import prisma from './path-to-your-prisma-client'

export const runtime = 'edge'

export const size = {
  width: 32,
  height: 32,
}
export const contentType = 'image/png'

export default async function Icon() {
  // Fetch favicon from database using Prisma
  const faviconData = await prisma.favicon.findFirst()

if (faviconData) {
// If favicon found in database, return it
return new ImageResponse(
(
<img
src={faviconData.url}
alt="Favicon"
style={{ width: '100%', height: '100%' }}
/>
),
{ ...size }
)
} else {
// If no favicon in database, return fallback
return new ImageResponse(
(
<div
style={{
fontSize: 24,
background: 'black',
width: '100%',
height: '100%',
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
color: 'white',
}}
>
F
</div>
),
{ ...size }
)
}
}

This approach uses the `ImageResponse` API from `next/og` to generate the icon dynamically **Generate icons using code (.js, .ts, .tsx)** (<https://nextjs.org/docs/app/api-reference/file-conventions/metadata/app-icons#generate-icons-using-code-js-ts-tsx>).

Remember to adjust the Prisma query according to your database schema and ensure you have the necessary Prisma setup in your project.

This solution allows you to fetch the favicon from your database and use a fallback if no result is found, all within the Next.js framework.
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