How to start the web side and Node.js service at the same time in a Vite project and drive the Node.js service through the web side?

Vite project: Start the front-end and Node.js services at the same time to realize the web-side driver Node.js

This article introduces how to simultaneously start the front-end (Web) and Node.js services in a Vite project, and drive the Node.js service through the front-end to access system resources. We will explore implementation methods, applicable scenarios, and potential limitations.

Background: Front-end and back-end work together

In many application scenarios, Node.js can directly access system resources, while the front-end is limited by the browser security mechanism and cannot be directly operated. The goal of this article is to start the Vite front-end service and Node.js service simultaneously through one command, and let the front-end control the back-end, thereby indirectly accessing system resources.

Solution: Leverage the Vite plugin

We can use Vite's plug-in mechanism, especially the buildEnd hook, to start the Node.js service after the front-end build is completed.

Here is a sample plugin that demonstrates how to execute the Node.js command during buildEnd stage:

 const { exec } = require('child_process');

export default function myPlugin() {
  return {
    name: 'start-node-server',
    buildEnd() {
      exec('node server.js', (error, stdout, stderr) => {
        if (error) {
          console.error(`Failed to start Node.js service: ${error}`);
          return;
        }
        console.log(`Node.js service started successfully:\n${stdout}`);
        console.error(`Node.js service error message:\n${stderr}`);
      });
    },
  };
}

This plugin is called start-node-server . After the Vite build is completed, execute the node server.js command to start the Node.js service (assuming your service entry file is server.js ). This example contains errors and standard output processing for improved robustness.

Important notes

1. Production environment deployment: This method is mainly applicable to development environments. In production environments, professional process managers (such as PM2) should be used to manage Node.js services, rather than relying on Vite's build process.

2. Vite's role: Vite is a build tool, not a process manager. It is not suitable for long-term operation and management of Node.js services in production environments.

3. Development Environment Limitations: If your front-end is deployed on a standalone static file server, this method will not meet the requirements. It is only suitable for situations where the front-end and back-end run in the same environment.

Through the above methods, the collaboration between the Vite front-end and the Node.js back-end can be achieved. But please select the appropriate deployment and management strategy based on actual conditions, especially in production environments. Remember to use a professional process manager in production environments to manage Node.js applications.

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