Deletes all your cached URLs in prerender

_README.md

You can run this by doing the following:

1. Log into https://prerender.io
2. Open the developer console on the prerender site
3. Copy the code in this gist and paste it into your console
4. Hit enter!

Some notes:

• This script takes a while, Prerender is not very performant! So if you have a lot of cached URLs, be patient.
• I recommend opening the network tab of your developer console, and making sure that all the requests to /cached-pages and remove-cached-urls are returning 200 OK responses. If they're returning any response with status 400+ it's likely this script isn't working.
• This may stop working at any time if Prerender changes their API or API usage policies ever.

delete-all-prerender.js

(async function () {
  while (true) {
    // fetch pages 1000 items at a time, the Prerender max
    // as of 2021/01/06; dont need to worry about page num
    // because after deletion these pages will be gone anyway
    const getPagesResult = await fetch(
      "https://prerender.io/api/cached-pages?pageSize=1000"
    );
    if (getPagesResult.status > 299) {
      throw new Error(
        "Could not fetch cached pages; see network console for details"
      );
    }

    const data = await getPagesResult.json();
    if (data.length === 0) {
      break; // we're done!
    }

    const removeFetchResult = await fetch(
      "https://prerender.io/api/remove-cached-urls",
      {
        credentials: "include",
        headers: {
          "Content-Type": "application/json",
          "X-XSRF-TOKEN": document.cookie
            .split(";")
            .find((s) => s.startsWith("XSRF-TOKEN"))
            .split("=")[1],
        },
        body: JSON.stringify({
          urls: data.map(({ url, adaptive_type }) => ({ url, adaptive_type })),
        }),
        method: "DELETE",
        mode: "cors",
      }
    );

    if (removeFetchResult.status > 299) {
      throw new Error(
        "Could not delete cached pages; see network console for details"
      );
    }
  }
})().then(() => console.log("done"));

Enjoy!

I've replaced the xsrf parsing logic as it was failing on Safari "X-XSRF-TOKEN": document.cookie.match(/XSRF-TOKEN=([\w\-]+)/)[1],

seems reasonable, i was just running this from chrome as a one-off script so I didn't mind browser cross compatibility - glad it works for you!

The API URLs have changed to https://dashboard.prerender.io/api/cached-pages?pageSize=1000 and https://dashboard.prerender.io/api/remove-cached-urls

Thanks a ton!
I had to run the script a couple of times. Prerender.io seems to automatically upgrade/downgrade your subscription plan based on how many pages are cached.

By removing enough of them, I fell to a lower rang which I think broke the execution of remove-cached-urls.

WARNING:

New subscription plans are now additionally charging caching and re-caching pages (2 $/ 1000 recaches) keep that in mind and think about if you really want to delete the cache

I also had to add a space to the beginning of XSRF_TOKEN as follows:

.find((s) => s.startsWith(" XSRF-TOKEN"))