# Examples of Nextra Sites

# Actual SWR Site

See also the actual SWR site:

SWR (stale-while-revalidate is a cache invalidation strategy) is a React Hooks library for remote data fetching.

To see an example of use, you can go to the PL site (opens new window) and have a look at the component teams.jsx (opens new window) file[1].

/components/teams.jsx

import styles from './counters.module.css'
import useSWR from 'swr'
import { Link } from 'nextra-theme-docs';

const fetcher = (...args) => fetch(...args).then((res) => res.json())

export default function Teams() {
    const { data, error } = useSWR('/api/getteams', fetcher)

    if (error) return <div>Failed to load {error}</div>
    if (!data) return <div>Loading...</div>

    if (data?.teams?.length) return (
        <div>
            <p>{data.teams.length} Teams</p>
            <ul className={styles.uList}>
                {
                   data.teams.map(t => (
                      <li key={t.name}>
                          <Link href={t.url}>{t.name}</Link>
                          <span> - </span>
                          <Link href={t.url+"/repositories"}>Repos</Link>
                      </li>)
                )
                }
            </ul>
        </div>
    )
    return 'Sign in to see your teams';
}
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That looks like this:

images/nextra/swr-pl-teams.png (opens new window)

# Tutorial en PL

Un tutorial del profesor está en:

WARNING

Mis apuntes de PL han sido hechos con la versión 2.13 de nextra. La versión a 2024-10 de nextra es la 3.1.

En los apuntes de PL (2024-10):

➜  pl2324-apuntes git:(main) ✗ npm ls nextra
pl-nextra@0.0.2 /Users/casianorodriguezleon/campus-virtual/2324/pl2324/pl2324-apuntes
├─┬ nextra-theme-docs@2.13.2
│ └── nextra@2.13.2 deduped
└── nextra@2.13.2
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En su tarea será algo así:

➜  nextra-casiano-rodriguez-leon-alu0100291865 git:(main) ✗ npm ls nextra
nextra-docs-template@1.0.0 /Users/casianorodriguezleon/campus-virtual/2425/sytws2425/practicas/nextra/nextra-casiano-rodriguez-leon-alu0100291865
├─┬ nextra-theme-docs@3.1.0
│ └── nextra@3.1.0 deduped
└── nextra@3.1.0
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Véase el blog de Dimitri Postolov Nextra 3 – Your Favourite MDX Framework, Now on 🧪 Steroids (opens new window) for a list of the changes.


  1. Remember to have the credentials updated in the .env.local file and the Vercel environment variables of the project or it will crash. ↩︎

Last Updated: 2 months ago