#Astro dev server caching issue

9 messages · Page 1 of 1 (latest)

mossy spindleBOT
#

Hi @trim acorn. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

#

Astro's development server, started with the astro dev command, is a local HTTP server that doesn't bundle assets. It uses Hot Module Replacement (HMR) to update your browser as you save changes in your editor source (https://docs.astro.build/en/reference/cli-reference/#astro-dev).

Astro also has a feature for enabling build caching, which is particularly useful when working with large collections. This experimental feature optimizes Astro’s build process, enabling unchanged collections to be stored and reused between builds. This can lead to significant build performance improvements source (https://docs.astro.build/en/guides/content-collections/#enabling-build-caching).

However, while this feature stabilizes, you may run into issues with the stored cache. If you encounter such issues, you can reset your build cache by running the following command:

npm run astro build -- --force

This command forces a new build, effectively clearing the cache source (https://docs.astro.build/en/guides/content-collections/#enabling-build-caching).

If you're having issues with the dev server, it's also recommended to try restarting it. If you edit and save a file and don’t see your site update accordingly, try refreshing the page. If refreshing the page doesn’t update your preview, or if a new installation doesn’t seem to be working, then restart the dev server source (https://docs.astro.build/en/guides/integrations-guide/tailwind/#others).

If you continue to have issues, you can seek help from the Astro community on their Discord (https://astro.build/chat) channel source (https://docs.astro.build/en/guides/integrations-guide/tailwind/#others).

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@lone coral kapa.ai is still learning and improving, please let us know how it did by reacting below

#

Let me check the knowledge base for you. One moment! :books:

#

Yes, you can specify a default port for the Astro dev server to run on.

Astro v3.0 changes the default port to 4321. If you want to change this, you can update any existing references to localhost:3000, for example in tests or in your README, to reflect the new port localhost:4321 source (https://docs.astro.build/en/guides/upgrade-to/v3/#changed-default-port-3000).

You can also customize the Astro dev server port used by both astro dev and astro preview in the Astro configuration file. Here's an example of how to do it:

{  
  server: { 
    port: 1234, 
    host: true
  }
}

In this example, the server port is set to 1234 source (https://docs.astro.build/en/reference/configuration-reference/#server-options).

Additionally, you can use scripts in package.json for shorter versions of these commands. For example, you may wish to start the development server on a different port. Here's how you can do it:

# run the dev server on port 8080 using the `start` script in `package.json`
npm run start -- --port 8080

In this example, the dev server is run on port 8080 source (https://docs.astro.build/en/reference/cli-reference/#packagejson-scripts).

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@lone coral kapa.ai is still learning and improving, please let us know how it did by reacting below

mossy spindleBOT
#

Let me check the knowledge base for you. One moment! :books:

#

Yes, there are a few ways to reset the Astro dev server to ensure it behaves normally:

  1. Restart the Dev Server: If you're having issues with the dev server, it's often helpful to simply restart it. You can stop the dev server at any time and return to the command prompt by typing Ctrl + C in the terminal. If your live preview stops working, go back to the terminal and restart the dev server by typing npm run dev source (https://docs.astro.build/en/tutorial/1-setup/2/#view-a-preview-of-your-website).

  2. Refresh the Page: If you edit and save a file and don’t see your site update accordingly, try refreshing the page. If refreshing the page doesn’t update your preview, then restart the dev server source (https://docs.astro.build/en/guides/integrations-guide/tailwind/#others).

  3. Check for Errors: If you aren’t able to open your project in the browser after starting the dev server, go back to the terminal where you ran the dev command and check the message displayed. It should tell you if an error occurred, or if your project is being served at a different URL than <http://localhost:4321/> source (https://docs.astro.build/en/install-and-setup/#work-in-development-mode).

  4. Use a Different Port: If the given port is already in use, Astro will automatically try the next available port. You can also manually specify a different port in the Astro configuration file source (https://docs.astro.build/en/reference/configuration-reference/#server-options).

#

Remember, the Astro dev server is designed to provide a live preview of your project as you make changes, so you shouldn't need to manually reset it under normal circumstances. If you continue to experience issues, consider seeking help from the Astro community on their Discord (https://astro.build/chat) channel source (https://docs.astro.build/en/guides/integrations-guide/tailwind/#others).

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: