
Vercel released [Cron Jobs](https://vercel.com/blog/cron-jobs) recently! That is
pretty cool. It's a feature a lot of people longed for because something like
this was not available yet when using serverless environment like Vercel.

Now you can automate repetetive tasks without having a backend. To get started
with Cron Jobs in Vercel you have to create a `vercel.json` file. Here are some
example Cron Jobs:

```json
{
  "crons": [
    {
      "path": "/api/backup",
      "schedule": "0 0 * * *"
    },
    {
      "path": "/api/weekly-mail",
      "schedule": "0 0 * * 1"
    }
  ]
}
```

Cron Jobs use a specific syntax to determine the time when the job should be
executed. The schedule string consists of five fields separated by spaces. They
stand for minute, hour, day, month and day of the week.

So the first job in the example above will be executed **every day at
midnight**. While the second job will be executed **every Monday at midnight**.

With the Hobby plan you get two Cron Jobs for free which each can be triggered
once per day, while the Pro plan offers 40 Cron Jobs in total with unlimited
usage per day.

Here's the full documentation of Cron Jobs in Vercel:
[Cron Jobs](https://vercel.com/docs/cron-jobs)


Today I learned that Vercel introduced Cron Jobs recently. So now you can automate repetetive tasks in a serverless Environment like on Vercel.

Vercel Cron Jobs


Today I learned about eary hints! Early hints are a status code (103 Early Hints). They are sent by the server to the browser to notify the browser which sub-resources are likely to be used on the page (like a CSS file from a CDN). 

The browser can then warm up connections and request these sub-resources while it is waiting for the main resource. This means the browser can do some work in advance which will speed up the whole page loads.

Here is an example to understand this better. Without early hints, the browser has to wait because everything is blocked on the server while it's determining the response for the main resource. 

With early hints, the server can immediately send a partial response and the browser can deal with that right away, while the server is determining the final response. 

> Note: if your server can send a final response, like a 200 right away, using the `link rel=preload` or `link rel=preconnect` are better solutions. But if your server needs time to generate the main response, early hints can be great!

You can learn more about early hints on the chrome developers documentation: <a href="https://developer.chrome.com/blog/early-hints/" target="_blank">faster page loads using server think-time with Early Hints &#8599;</a>.

Eary hints is a status code (103 Early Hints) that can help improve the performance of a website, because it allows the server to sent hints to the browser about critial sub-resources.

Faster page loads with early hints


Someone on Twitter shared this
[automatic ER diagram generator](https://github.com/keonik/prisma-erd-generator)
for prisma.

At my last job we manually updated our ER diagram on every change. And now I
learn that something like this exists? Mindblown 🤯

Would have loved to have this. You can imagine how much work is involved in
updating something so crucial to your business like this manually. And all the
times you forget it or update the wrong entities. This plugin is a lifesaver!


Today I learned that there is an automatic ER diagram generator for prisma

Today I learned

Vercel Cron Jobs

Faster page loads with early hints

Automatic ER diagrams