#Localized subdomains

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limpid owlBOT
#

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

#

Yes, you can achieve this using rewrites and the i18n configuration in Next.js. First, set up your i18n configuration in next.config.js:

// next.config.js
module.exports = {
  i18n: {
    locales: ['en', 'fr'],
    defaultLocale: 'en',
  },
}

Next, you can use rewrites to map the subdomains to their respective paths. In your next.config.js, add an async rewrites() function:

// next.config.js
module.exports = {
  i18n: {
    locales: ['en', 'fr'],
    defaultLocale: 'en',
  },

  async rewrites() {
    return [
      {
        source: '/:locale/:subdomain/:path*',
        destination: '/:locale/:subdomain/:path*',
      },
    ]
  },
}

This rewrite rule will map the subdomains to their respective paths with the locale prefix.

To handle the subdomains and map them to the correct paths, you can use Vercel Edge Functions (https://vercel.com/docs/concepts/functions/edge-functions) with Middleware (https://vercel.com/docs/concepts/functions/edge-functions#middleware). In the _middleware.js file at the root of your /pages folder, set up rewrite rules to map each subdomain/custom domain to their dynamic routes in /pages. Replace all instances of your domain in the _middleware.js file to configure the rewrites correctly.

For more information on setting up a multi-tenant application with Next.js, you can refer to the Vercel Guide (https://vercel.com/guides/nextjs-multi-tenant-application) and the Platforms Starter Kit (https://demo.vercel.pub/platforms-starter-kit).

Please note that you might need to adjust the rewrites and middleware logic to fit your specific use case.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

Vercel Documentation
Edge Functions Overview

Vercel's Edge Functions enable you to deliver dynamic, personalized content with the lightweight Edge Runtime. Learn more about Edge Functions here.

Vercel Documentation
How to Build a Full-Stack Multi-Tenant App Using Next.js

Learn how to create and deploy a full-stack application with multi-tenancy and custom domain support using Next.js, Prisma, PlanetScale, and Tailwind CSS.

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@charred cape kapa.ai is still learning and improving, please let us how it did by reacting below

charred cape
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@limpid owl we are not deploying to Vercel unfortunately. Is this still possible without it?

limpid owlBOT
#

Let me check the knowledge base for you. One moment! :books:

#

Yes, it's still possible to achieve this without deploying to Vercel. You can use Next.js rewrites and a custom server to handle the subdomains and map them to the correct paths.

First, set up your i18n configuration in next.config.js:

// next.config.js
module.exports = {
  i18n: {
    locales: ['en', 'fr'],
    defaultLocale: 'en',
  },

  async rewrites() {
    return [
      {
        source: '/:locale/:subdomain/:path*',
        destination: '/:locale/:subdomain/:path*',
      },
    ]
  },
}

Next, you'll need to create a custom server to handle the subdomains. You can use the http-proxy-middleware package to proxy requests to your Next.js app. First, install the package:

npm install http-proxy-middleware

Then, create a server.js file in your project root:

const express = require('express')
const { createProxyMiddleware } = require('http-proxy-middleware')
const { parse } = require('url')
const next = require('next')

const dev = process.env.NODE_ENV !== 'production'
const app = next({ dev })
const handle = app.getRequestHandler()

app.prepare().then(() => {
  const server = express()

  server.use((req, res, next) => {
    const parsedUrl = parse(req.url, true)
    const { pathname, query } = parsedUrl

    // Add your subdomain handling logic here
    // For example, extract the subdomain from the request headers and set it as a query parameter
    // req.query.subdomain = ...

    handle(req, res, { pathname, query })
  })

  server.listen(3000, (err) => {
    if (err) throw err
    console.log('> Ready on http://localhost:3000')
  })
})

In this custom server, you can add your subdomain handling logic to extract the subdomain from the request headers and set it as a query parameter.

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Please note that using a custom server disables some Next.js features, and you'll need to adjust the server logic to fit your specific use case. For more information on custom servers, you can refer to the Next.js documentation (https://nextjs.org/docs/advanced-features/custom-server).

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@charred cape kapa.ai is still learning and improving, please let us how it did by reacting below

charred cape
#

@limpid owl Hmm we're trying to keep the benefits of NextJS by not using a custom server.. would that still be possible without that?

limpid owlBOT
#

Let me check the knowledge base for you. One moment! :books:

#

I apologize for the confusion. If you want to avoid using a custom server, you can use a reverse proxy in your existing server setup to handle the subdomains and map them to the correct paths.

You can still use the i18n configuration in next.config.js:

// next.config.js
module.exports = {
  i18n: {
    locales: ['en', 'fr'],
    defaultLocale: 'en',
  },

  async rewrites() {
    return [
      {
        source: '/:locale/:subdomain/:path*',
        destination: '/:locale/:subdomain/:path*',
      },
    ]
  },
}

Then, configure your existing server (e.g., Nginx, Apache, etc.) to act as a reverse proxy and handle the subdomains. You'll need to extract the subdomain from the request and rewrite the URL to include the subdomain as a path segment.

Here's an example of how you can configure Nginx to handle subdomains:

server {
  listen 80;
  server_name ~^(?<subdomain>.+)\.domain\.com$;

  location / {
    proxy_pass http://localhost:3000/$subdomain$request_uri;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
  }
}

This configuration will extract the subdomain and rewrite the URL to include the subdomain as a path segment. Replace domain.com with your actual domain and adjust the configuration according to your server setup.

Please note that you might need to adjust the reverse proxy configuration to fit your specific use case.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@charred cape kapa.ai is still learning and improving, please let us how it did by reacting below

charred cape
#

@limpid owl Do you have an example of doing this with Azure?

limpid owlBOT
#

Let me check the knowledge base for you. One moment! :books:

#

I don't have a specific example for Azure from the provided extracts. However, you can achieve this using Azure Front Door, which is a scalable and secure entry point for fast delivery of your global applications. You can use Azure Front Door to handle the subdomains and map them to the correct paths.

Here's a general outline of the steps you would need to follow:

  1. Set up your i18n configuration in next.config.js and the rewrites as mentioned in the previous responses.

  2. Create an Azure Front Door instance in your Azure portal.

  3. Configure the Front Door instance to handle the subdomains by creating routing rules. You'll need to extract the subdomain from the request and rewrite the URL to include the subdomain as a path segment.

  4. Set up custom domains and SSL certificates for your Front Door instance.

Please note that this is a high-level outline, and you might need to adjust the configuration according to your specific use case. For more information on setting up and configuring Azure Front Door, you can refer to the Azure Front Door documentation (https://docs.microsoft.com/en-us/azure/frontdoor/front-door-overview).

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@charred cape kapa.ai is still learning and improving, please let us how it did by reacting below

charred cape
limpid owlBOT
#

Let me check the knowledge base for you. One moment! :books:

#

Yes, using Azure Front Door, you can configure it to handle the subdomains and map them to the correct paths as you mentioned. However, you'll need to set up custom routing rules in Azure Front Door to rewrite the URLs accordingly.

Here's a high-level outline of the steps:

  1. Set up your i18n configuration in next.config.js and the rewrites as mentioned in the previous responses.

  2. Create an Azure Front Door instance in your Azure portal.

  3. Configure the Front Door instance to handle the subdomains by creating custom routing rules. You'll need to extract the subdomain from the request and rewrite the URL to include the subdomain as a path segment along with the locale.

  4. Set up custom domains and SSL certificates for your Front Door instance.

Please note that this is a high-level outline, and you might need to adjust the configuration according to your specific use case. For more information on setting up and configuring Azure Front Door, you can refer to the Azure Front Door documentation (https://docs.microsoft.com/en-us/azure/frontdoor/front-door-overview).

By following these steps, users will be able to access the URLs in the format you mentioned, and Next.js will interpret them as:

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@charred cape kapa.ai is still learning and improving, please let us how it did by reacting below

charred cape
#

@limpid owl would this solution be possible locally as well on localhost?

limpid owlBOT
#

Let me check the knowledge base for you. One moment! :books:

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@charred cape That's a great question, but unfortunately I am only capable of responding to a maximum of three questions per thread. Don't hesitate to create a new thread for any further questions you have though. I'm here to help!