Managing embedded URLs in Next.js applications

Question

Managing embedded URLs in Next.js applications

I am currently in the process of developing an ecommerce platform, expecting users to utilize both our domain and their own custom domains. For example:

ourplatform.com/username

theirdomain.com

My goal is to customize the inline links based on the specific domain used to access the site. If it is our domain, the link structure should be /username/page, whereas for their domain, it should simply be /page.

Here is the code snippet I have created thus far, which only adds the username if the domain belongs to our platform:

import Link from 'next/link'

const customPath = ({ username }) => {
  if (typeof window !== 'undefined') {
    return window.location !== 'ourplatform.com'
      ? '/'
      : `/${username}`
  }
}

export default ({ username }) => {
  const link = customPath({ username })
  return (
    <Link href={link}>
      Home
    </Link>
  )
}

However, I am encountering the following error message:

Error: Failed prop type: The prop `href` expects a `string` or `object` in `<Link>`, but got `undefined` instead.

How can I successfully define different href links based on the user's domain?

javascript url path hyperlink next.js

Answer 1

Answer №1

Ensuring proper evaluation of window.location is crucial during the client-side phase. However, to prevent the link constant from being set to undefined in the server-side compilation phase, it's essential for customPath() to return a value for the <Link /> component.

const customPath = ({ username }) => {
  if (typeof window !== 'undefined') {
    return window.location.hostname !== 'ourplatform.com' // include `.hostname`
      ? '/'
      : `/${username}`
  }
  return '/' // To ensure server-side compilation
}

Answer 2

Ensuring proper evaluation of window.location is crucial during the client-side phase. However, to prevent the link constant from being set to undefined in the server-side compilation phase, it's essential for customPath() to return a value for the <Link /> component.

const customPath = ({ username }) => {
  if (typeof window !== 'undefined') {
    return window.location.hostname !== 'ourplatform.com' // include `.hostname`
      ? '/'
      : `/${username}`
  }
  return '/' // To ensure server-side compilation
}

Answer 3

Answer №2

Instead of directly checking typeof window !== 'undefined' to access window.location, I suggest handling the customPath logic within a useEffect function to avoid any server-side rendering discrepancies.

Below is a custom hook that manages the custom path logic without triggering errors or warnings.

import Link from 'next/link'

function useCustomPath({ username }) {
    const [customPath, setCustomPath] = useState('/') // Default path during SSR

    useEffect(() => {
        const path = window.location.hostname !== 'ourplatform.com' ? '/' : `/${username}`
        setCustomPath(path) // Set appropriate path on the client-side
    }, [username])

    return customPath
}

export default ({ username }) => {
    const link = useCustomPath({ username })
    
    return (
        <Link href={link}>
            Home
        </Link>
    )
}

Answer 4

Instead of directly checking typeof window !== 'undefined' to access window.location, I suggest handling the customPath logic within a useEffect function to avoid any server-side rendering discrepancies.

Below is a custom hook that manages the custom path logic without triggering errors or warnings.

import Link from 'next/link'

function useCustomPath({ username }) {
    const [customPath, setCustomPath] = useState('/') // Default path during SSR

    useEffect(() => {
        const path = window.location.hostname !== 'ourplatform.com' ? '/' : `/${username}`
        setCustomPath(path) // Set appropriate path on the client-side
    }, [username])

    return customPath
}

export default ({ username }) => {
    const link = useCustomPath({ username })
    
    return (
        <Link href={link}>
            Home
        </Link>
    )
}

Managing embedded URLs in Next.js applications

Answer №1

Answer №2

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