I want to use the environment variable value set in the main process in the Lander process

#1

For path reference between the development process and the deployment process, the path to my static resource was specified using environmental variables.

First, in electron/package.json

"main": "./src-gen/backend/electron-main-router.js"

electron-main-router.js

// @ts-check
const path = require('path');
const { app } = require('electron');
const userHome = require('user-home');



let mainModulePath;

if (app.isPackaged) {
    mainModulePath = path.join(__dirname, '../../lib/backend/electron-main.js');

    process.env.RESOURCES_PATH = path.join(__dirname, '../../lib/resources')
} else {
    mainModulePath = path.join(__dirname, 'electron-main.js');

    process.env.RESOURCES_PATH = path.join(__dirname, '../../../myProject/src/resources')
}


require(mainModulePath);

I tried to use this in Lander’s process.

But

ReferenceError: process is not defined

How do you solve it?

#2

I tried to use this in Lander’s process.

What is Lander?

ReferenceError: process is not defined

process should generally be defined as a global property in node.js. I’m not sure what’s wrong there. Can you provide a repo to reproduce the issue?

#3

It’s a render process, not a Lander.

You are right. It should have been defined as a global attribute, but I didn’t think of it.

This problem has been resolved. Thank you.

#4

Can I modify ‘src-gen/frontend/preload.js’?

I want to deliver environmental variables at the backend.

Can you tell me specifically how to set environmental variables as global attributes?

#5

Generally, no file in src-gen should be modified - they are generated on each call of theia build.

You could set these environment variables in your own electronMain module contribution.