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Execute javascript file in child process within Electron

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0

I've got an Electron app with Angular inside (last versions). I need to execute javascript (not typescript) file from the project in child process (some heavy things that I don't want to execute syncronously).


Tried this solutions:


1. Created function Loader, put all content there:

export function Loader() console.log(111); 

Then in component that creates child process:

import Loader from 'some/path/to/loader.js';

public doSomething(): void null): Promise<void> => 
 if (code === 0) 
 console.log(`Finished with code $code`);
 await this.someMethod();
 else 
 console.error(`Exit code is $code`);
 
 
 );

2.Removing Loader function wrapper, js file looks like

console.log(1111);

In component:

public doSomething(): void {
 fork(
 require.resolve('some/path/to/loader.js'),
 [ ... some string args here ],
 env: 'ELECTRON_RUN_AS_NODE': '1' 
 )
 .on(// The same event handling

For both cases child process in prod mode or release build fails with code 1. The same code placed to Electron's main.ts file works.



How can I fix child process execution in the place where I'm calling it?

javascript angular electron

share|improve this question

asked Mar 23 at 0:15

WeekendManWeekendMan

134214

add a comment | 

0

I've got an Electron app with Angular inside (last versions). I need to execute javascript (not typescript) file from the project in child process (some heavy things that I don't want to execute syncronously).


Tried this solutions:


1. Created function Loader, put all content there:

export function Loader() console.log(111); 

Then in component that creates child process:

import Loader from 'some/path/to/loader.js';

public doSomething(): void null): Promise<void> => 
 if (code === 0) 
 console.log(`Finished with code $code`);
 await this.someMethod();
 else 
 console.error(`Exit code is $code`);
 
 
 );

2.Removing Loader function wrapper, js file looks like

console.log(1111);

In component:

public doSomething(): void {
 fork(
 require.resolve('some/path/to/loader.js'),
 [ ... some string args here ],
 env: 'ELECTRON_RUN_AS_NODE': '1' 
 )
 .on(// The same event handling

For both cases child process in prod mode or release build fails with code 1. The same code placed to Electron's main.ts file works.



How can I fix child process execution in the place where I'm calling it?

javascript angular electron

share|improve this question

asked Mar 23 at 0:15

WeekendManWeekendMan

134214

add a comment | 

I've got an Electron app with Angular inside (last versions). I need to execute javascript (not typescript) file from the project in child process (some heavy things that I don't want to execute syncronously).


Tried this solutions:


1. Created function Loader, put all content there:

export function Loader() console.log(111); 

Then in component that creates child process:

import Loader from 'some/path/to/loader.js';

public doSomething(): void null): Promise<void> => 
 if (code === 0) 
 console.log(`Finished with code $code`);
 await this.someMethod();
 else 
 console.error(`Exit code is $code`);
 
 
 );

2.Removing Loader function wrapper, js file looks like

console.log(1111);

In component:

public doSomething(): void {
 fork(
 require.resolve('some/path/to/loader.js'),
 [ ... some string args here ],
 env: 'ELECTRON_RUN_AS_NODE': '1' 
 )
 .on(// The same event handling

For both cases child process in prod mode or release build fails with code 1. The same code placed to Electron's main.ts file works.



How can I fix child process execution in the place where I'm calling it?

javascript angular electron

share|improve this question

asked Mar 23 at 0:15

WeekendManWeekendMan

134214

export function Loader() console.log(111); 

import Loader from 'some/path/to/loader.js';

public doSomething(): void null): Promise<void> => 
 if (code === 0) 
 console.log(`Finished with code $code`);
 await this.someMethod();
 else 
 console.error(`Exit code is $code`);
 
 
 );

console.log(1111);

public doSomething(): void {
 fork(
 require.resolve('some/path/to/loader.js'),
 [ ... some string args here ],
 env: 'ELECTRON_RUN_AS_NODE': '1' 
 )
 .on(// The same event handling

javascript angular electron

javascript angular electron

share|improve this question

asked Mar 23 at 0:15

WeekendManWeekendMan

134214

share|improve this question

asked Mar 23 at 0:15

WeekendManWeekendMan

134214

asked Mar 23 at 0:15

WeekendManWeekendMan

134214

asked Mar 23 at 0:15

WeekendManWeekendMan

134214

2 Answers
2

active

oldest

votes

0

You probably might want to use WebWorkers.

You can move some of your heavy code to web-workers and keep your main thread non-blocked.

let win = new BrowserWindow(
 webPreferences: 
 nodeIntegrationInWorker: true
 
)

and then

let worker = new Worker('script.js')

https://electronjs.org/docs/tutorial/multithreading

share|improve this answer

edited Mar 23 at 0:26

answered Mar 23 at 0:20

Erick AkyErick Aky

714

add a comment | 

0

If you are in the Renderer, I believe you need to use remote

something like this could work:

const spawn = window.remote.require('child_process')
const ls = spawn('ls', ['-lh', '/usr'])

ls.stdout.on('data', (data) => 
 console.log(`stdout: $data`)
)

ls.stderr.on('data', (data) => 
 console.log(`stderr: $data`)
)

in the above you'd need to attach remote to window:

 <script>
 this.window.remote = require('electron').remote;
 </script>

share|improve this answer

answered Mar 23 at 3:24

scottjustin5000scottjustin5000

92369

add a comment | 

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0

You probably might want to use WebWorkers.

You can move some of your heavy code to web-workers and keep your main thread non-blocked.

let win = new BrowserWindow(
 webPreferences: 
 nodeIntegrationInWorker: true
 
)

and then

let worker = new Worker('script.js')

https://electronjs.org/docs/tutorial/multithreading

share|improve this answer

edited Mar 23 at 0:26

answered Mar 23 at 0:20

Erick AkyErick Aky

714

add a comment | 

0

You probably might want to use WebWorkers.

You can move some of your heavy code to web-workers and keep your main thread non-blocked.

let win = new BrowserWindow(
 webPreferences: 
 nodeIntegrationInWorker: true
 
)

and then

let worker = new Worker('script.js')

https://electronjs.org/docs/tutorial/multithreading

share|improve this answer

edited Mar 23 at 0:26

answered Mar 23 at 0:20

Erick AkyErick Aky

714

add a comment | 

You probably might want to use WebWorkers.

You can move some of your heavy code to web-workers and keep your main thread non-blocked.

let win = new BrowserWindow(
 webPreferences: 
 nodeIntegrationInWorker: true
 
)

and then

let worker = new Worker('script.js')

https://electronjs.org/docs/tutorial/multithreading

share|improve this answer

edited Mar 23 at 0:26

answered Mar 23 at 0:20

Erick AkyErick Aky

714

let win = new BrowserWindow(
 webPreferences: 
 nodeIntegrationInWorker: true
 
)

let worker = new Worker('script.js')

share|improve this answer

edited Mar 23 at 0:26

answered Mar 23 at 0:20

Erick AkyErick Aky

714

answered Mar 23 at 0:20

Erick AkyErick Aky

714

answered Mar 23 at 0:20

Erick AkyErick Aky

714

0

If you are in the Renderer, I believe you need to use remote

something like this could work:

const spawn = window.remote.require('child_process')
const ls = spawn('ls', ['-lh', '/usr'])

ls.stdout.on('data', (data) => 
 console.log(`stdout: $data`)
)

ls.stderr.on('data', (data) => 
 console.log(`stderr: $data`)
)

in the above you'd need to attach remote to window:

 <script>
 this.window.remote = require('electron').remote;
 </script>

share|improve this answer

answered Mar 23 at 3:24

scottjustin5000scottjustin5000

92369

add a comment | 

0

If you are in the Renderer, I believe you need to use remote

something like this could work:

const spawn = window.remote.require('child_process')
const ls = spawn('ls', ['-lh', '/usr'])

ls.stdout.on('data', (data) => 
 console.log(`stdout: $data`)
)

ls.stderr.on('data', (data) => 
 console.log(`stderr: $data`)
)

in the above you'd need to attach remote to window:

 <script>
 this.window.remote = require('electron').remote;
 </script>

share|improve this answer

answered Mar 23 at 3:24

scottjustin5000scottjustin5000

92369

add a comment | 

If you are in the Renderer, I believe you need to use remote

something like this could work:

const spawn = window.remote.require('child_process')
const ls = spawn('ls', ['-lh', '/usr'])

ls.stdout.on('data', (data) => 
 console.log(`stdout: $data`)
)

ls.stderr.on('data', (data) => 
 console.log(`stderr: $data`)
)

in the above you'd need to attach remote to window:

 <script>
 this.window.remote = require('electron').remote;
 </script>

share|improve this answer

answered Mar 23 at 3:24

scottjustin5000scottjustin5000

92369

const spawn = window.remote.require('child_process')
const ls = spawn('ls', ['-lh', '/usr'])

ls.stdout.on('data', (data) => 
 console.log(`stdout: $data`)
)

ls.stderr.on('data', (data) => 
 console.log(`stderr: $data`)
)

 <script>
 this.window.remote = require('electron').remote;
 </script>

share|improve this answer

answered Mar 23 at 3:24

scottjustin5000scottjustin5000

92369

answered Mar 23 at 3:24

scottjustin5000scottjustin5000

92369

answered Mar 23 at 3:24

scottjustin5000scottjustin5000

92369