I'm trying to use Node modules (in this example, fs
) in my renderer
processes, like this:
// main_window.js
const fs = require('fs')
function action() {
console.log(fs)
}
Note: The action
function gets called when I press a button in my main_window
.
But this gives an error:
Uncaught ReferenceError: require is not defined
at main_window.js:1
I can solve this issue, as suggested by this accepted answer, by adding these lines to my main.js
when initializing the main_window
:
// main.js
main_window = new BrowserWindow({
width: 650,
height: 550,
webPreferences: {
nodeIntegration: true
}
})
But, according to the docs, this isn't the best thing to do, and I should instead, create a preload.js
file and load these Node modules there and then use it in all of my renderer
processes. Like this:
main.js
:
main_window = new BrowserWindow({
width: 650,
height: 550,
webPreferences: {
preload: path.join(app.getAppPath(), 'preload.js')
}
})
preload.js
:
const fs = require('fs')
window.test = function() {
console.log(fs)
}
main_window.js
:
function action() {
window.test()
}
And it works!
Now my question is, isn't it counter-intuitive that I should write most of the code of my renderer
processes in preload.js
(Because only in preload.js
I have access to Node modules) and then merely call the functions in each renderer.js
file (for example here, main_window.js
)? What am I not understanding here?