using a global variable accross astro endpoints

[quartz breach]

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

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To share a global variable between all your SSR endpoints, you can use a configuration file like markdoc.config.mjs or markdoc.config.ts. In this file, you can define global variables using the variables attribute. Here's an example:

// markdoc.config.mjs or markdoc.config.ts
import { defineMarkdocConfig } from '@astrojs/markdoc/config';

export default defineMarkdocConfig({
  variables: {
    environment: process.env.IS_PROD ? 'prod' : 'dev',
  }
});

However, the information extracts provided do not include an example of assigning this global variable to one of your files. For more information on Astro configuration and global variables, you can refer to the Astro documentation (https://docs.astro.build/en/guides/environment-variables).

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[iron lintel]

@quartz breach that's not what i want i want to share a global variable that i can assign, because i want to create a connection pool and assign it in a global variable to use it beetween all the endpoints which need it

[quartz breach]

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

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Hmm, I don't know enough to give you a confident answer yet. However, you can refer to the Astro documentation (https://docs.astro.build) for more information on working with Astro and its features.

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[iron lintel]

@quartz breach can i extend the GlobalThis object

[quartz breach]

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

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Yes, you can extend the globalThis object in Astro. To do this, you can add a global declaration to your env.d.ts file. Here's an example:

// env.d.ts
declare global {
  var myString: string;
  function myFunction(): boolean;
}

export {};

This will provide typing to globalThis.myString and globalThis.myFunction, as well as window.myString and window.myFunction.

Keep in mind that window is only available in client-side code. globalThis is available both server-side and client-side, but its server-side value won’t be shared with the client.

For more information, refer to the Astro documentation on extending window and globalThis (https://docs.astro.build/en/guides/typescript#extending-window-and-globalthis).

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[iron lintel]

can a user have access to the globalThis variable and how ? @quartz breach

[quartz breach]

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

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Users can access the globalThis object in their code, but it's important to note that the values of globalThis on the server-side won't be shared with the client. The globalThis object is available both server-side and client-side, but its server-side value won’t be shared with the client.

If you want to expose a variable to the client-side, you can use the window object. However, be cautious about exposing sensitive data to the client-side.

For more information, refer to the Astro documentation on extending window and globalThis (https://docs.astro.build/en/guides/typescript#extending-window-and-globalthis).

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[iron lintel]

@quartz breach so it's impossible that a client have access to a variable in Globalthis

[quartz breach]

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

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Yes, that's correct. The globalThis object's server-side values are not shared with the client. If you want to expose a variable to the client-side, you can use the window object or use other methods like data-* attributes (https://docs.astro.build/en/guides/client-side-scripts#pass-frontmatter-variables-to-scripts) to store the value of variables in your HTML output. Scripts can then read these attributes using an element’s dataset property once your HTML loads in the browser.

For more information, refer to the Astro documentation on extending window and globalThis (https://docs.astro.build/en/guides/typescript#extending-window-and-globalthis) and passing frontmatter variables to scripts (https://docs.astro.build/en/guides/client-side-scripts#pass-frontmatter-variables-to-scripts).

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