#.js that runs with astro

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half chasm
#

Is it possible to in astro (ssr/node standalone ig) add a .js that will run with the project? For example the file would be

let A = 1;
let B = 2;

export const Output = {A} {B};

and I want later to access the output from that file in index.astro, i also want it to run like fastify or express - server, not static html files

obtuse craterBOT
#

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

#

Yes, it is possible to add a .js file that will run with your Astro project. You can import the .js file into your Astro components and use the exported values. Here's how you can do it:

  1. Create a .js file with your code. For example, create a data.js file:
let A = 1;
let B = 2;

export const Output = `${A} ${B}`;
  1. In your index.astro file, you can import the Output from data.js and use it in your Astro component:
---
import { Output } from '../path/to/data.js';
---

<h1>{Output}</h1>

Remember to replace '../path/to/data.js' with the actual path to your data.js file.

As for running your Astro project like a server (like Fastify or Express), you can use the @astrojs/node adapter. This adapter allows Astro to deploy your hybrid or server-rendered site to Node targets. You can use it either in standalone mode or as middleware for other HTTP servers, such as Express or Fastify.

Here's an example of how to use it with Express:

import express from 'express';
import { handler as ssrHandler } from './dist/server/entry.mjs';

const app = express();
app.use(express.static('dist/client/'));
app.use((req, res, next) => {
  const locals = {
    title: 'New title',
  };

  ssrHandler(req, res, next, locals);
});

app.listen(8080);

And here's how to use it with Fastify:

import Fastify from 'fastify';
import fastifyMiddie from '@fastify/middie';
import fastifyStatic from '@fastify/static';
import { fileURLToPath } from 'node:url';
import { handler as ssrHandler } from './dist/server/entry.mjs';

const app = Fastify({ logger: true });

await app
  .register(fastifyStatic, {
    root: fileURLToPath(new URL('./dist/client', import.meta.url)),
  })
  .register(fastifyMiddie);

app.use(ssrHandler);

app.listen({ port: 8080 });
#

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

half chasm
#

@obtuse crater wtf? i dont want to use fastify or express but astro to work and run like them, i want to run astro as a server from my pm2

obtuse craterBOT
#

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

#

Astro can indeed run as a server, and you can use PM2 to manage the process. Here's how you can do it:

  1. First, you need to start Astro's development server. You can do this by running the dev script in your package.json file. This script should look something like this:
"scripts": {
  "dev": "astro dev"
}

You can start the Astro dev server by running npm run dev, pnpm run dev, or yarn run dev in your terminal, depending on the package manager you're using (source (https://docs.astro.build/en/tutorial/1-setup/2/#run-astro-in-dev-mode)).

  1. To run Astro as a server with PM2, you can create an ecosystem.config.js file in your project root with the following content:
module.exports = {
  apps : [{
    name: "astro",
    script: "npm",
    args: "run dev"
  }]
}

This configuration will run the npm run dev command (which starts the Astro dev server) as a PM2 process.

  1. You can then start the Astro server with PM2 by running pm2 start ecosystem.config.js in your terminal.

Please note that Astro's development server is intended for development use and does not bundle assets. For production use, you should build your Astro project and serve the static files with a production-ready server or hosting provider. If you want to deploy your Astro project to a Node.js server, you can use the @astrojs/node adapter, which allows Astro to output a script that runs your project on a Node.js server (source (https://docs.astro.build/en/guides/integrations-guide/node/#configuration)).

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

#

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