Today we are proud to share that our amazing engineering team have made all the necessary updates to the WebContainers platform – and the StackBlitz editor itself – needed to support Astro! 🚀 You can try it now!
Why are we hyped about Astro?
And that's not even all, so if you're excited to learn more, visit the Astro Documentation.
The fact that StackBlitz runs Node.js entirely in your browser is mind-blowing.
Our users can now spin up any Astro starter project or example with StackBlitz in seconds!
How can you start?
- As in a local environment, you can run
npm init astrocommand in any WebContainer project
- But the fastest way is to use this starter with all the files already prepared for you: https://stackblitz.com/fork/astro
- You can also visit the official Astro examples repository, choose one of the setups and click "Open in StackBlitz" link in the example's readme for a more specific starting point.
So what has changed on StackBlitz?
In order to support Astro, we needed to make several updates to WebContainers, including:
- An opt-in support for dynamic imports in CommonJS via
You can set it up in your
.stackblitzrcfile like this:
We've decided to make it an opt-in since it's not a very common feature, but can introduce a performance penalty. The good news is, it's only a temporary workaround, and the need for it will be removed by the Astro team in the next few weeks.
- The possibility for ESBuild to work with synchronous compilation by turning off worker threads (The synchronous message passing is not supported by WebContainer as browsers don't implement the necessary APIs for this. By turning worker threads off, it uses child processes)
- Fixing an encoding issue when passing data between processes (Data was encoded incorrectly when it came back from the ESBuild child process and then it was interpreted incorrectly)
We've also honed the editor to handle
.astro files by adding the textmate grammar support and a dedicated file icon.
We also want to give a huge shout out and thank you to the Astro team for all their help in making this happen!
If you’re an OSS maintainer and want to enable WebContainer support for your framework, my DMs are open!