jlongster / electron-with-server-example Goto Github PK

after cloning, renaming to lightroom-catalog-helper, and running npm install, running npm start on Windows 10 x64 leads to the following error:

C:\Users\Pomax\Documents\Git\projects\lightroom-catalog-helper>npm start

> [email protected] start C:\Users\Pomax\Documents\Git\projects\lightroom-catalog-helper
> electron .


 checking 1
Service path not specified, so defaulting to ipc.config.socketRoot + ipc.config.appspace + id
requested connection to  myapp1 /tmp/app.myapp1
Connecting client on Unix Socket : /tmp/app.myapp1


######
error:  { Error: connect ENOENT \\.\pipe\tmp-app.myapp1
    at PipeConnectWrap.afterConnect [as oncomplete] (net.js:1061:14)
  errno: 'ENOENT',
  code: 'ENOENT',
  syscall: 'connect',
  address: '\\\\.\\pipe\\tmp-app.myapp1' }
found socket 1
connection closed myapp1 /tmp/app.myapp1 Infinity tries remaining of Infinity
Yuki exceeded connection rety amount of  or stopRetrying flag set.

(Yuki being the machine name for this particular Win10 installation)

Most people use webpack but it adds a lot of confusion to this simple demo. An example based on webpack make things clearer

In theory any process on the machine could communicate with the socket right? How have you secured this with your app?

Electron 12 it will be enabled contextIsolation by default.
https://www.electronjs.org/docs/tutorial/context-isolation

contextBridge.exposeInMainWorld('electron', {
  getSocketId: () => socketPromise,
  ipcConnect: (id, func) => {
    ipc.config.silent = true
    ipc.connectTo(id, () => {
      func(ipc.of[id])
    })
  },
  ...
})

got error:

const connectSocket = (socketId: string) => {
  window.electron.ipcConnect(socketId, (client) => {
    client.on('message', (data: string) => {
      const msg = JSON.parse(data)
  ...

I create a local web server and use http requests to communicate with UI.
Is it advisable?
Thank you :)

First of all, thanks for the awesome example. It's really helpful.

Can a TL;DR section be added? It will be helpful for people who have already read through the entire readme file and can use it for quick reference\lookup

something like this:

Hi,
It's 2023, and I'm reading electron docs about IPC. I'm in doubt how the ideas from this repo (and the blog related to it) compares to native implementation of electron IPC. Is it possible to implement these ideas using electron IPC? Is it still worth to do that ?
Thanks!
Ely

Hi James,

I've used this repository and your articles about using IPC communication with electron with much success--they've been super helpful!

I just wanted to post a heads up about the node-ipc package: sadly the author sabotaged it in March of 2022 by adding malware aimed at machines with Russian IP addresses. see: malware article

I'll be looking for alternatives for node-ipc now.... If you have any recommendations I'd appreciate it!

Thanks,
Bill.

Is it possible and recommended to use cluster in childprocess (ipc-server.js) to improve server performance with more than 1 cpu?
try the following implementation according to the ipc-node documentation:

`const ipc = require('node-ipc')
const fs = require('fs')
const cpuCount = require('os').cpus().length
const cluster = require('cluster')
const socketPath = '/tmp/ipc.sock'

function init(socketName, handlers) {
ipc.config.unlink = false
if (cluster.isMaster) {
if (fs.existsSync(socketPath)) {
fs.unlinkSync(socketPath)
}
for (let i = 0; i < cpuCount; i++) {
cluster.fork()
}
} else {

	ipc.serve(socketPath, () => {
		ipc.server.on('message', (data, socket) => {
			let msg = JSON.parse(data)
			let { id, name, args } = msg

			if (handlers[name]) {
				handlers[name](args).then(
					(result) => {
						ipc.server.emit(socket, 'message', JSON.stringify({ type: 'reply', id, result }))
					},
					(error) => {
						// Up to you how to handle errors, if you want to forward
						// them, etc
						ipc.server.emit(socket, 'message', JSON.stringify({ type: 'error', id }))
						throw error
					}
				)
			} else {
				console.warn('Unknown method: ' + name)
				ipc.server.emit(socket, 'message', JSON.stringify({ type: 'reply', id, result: null }))
			}
		})
	})

ipc.server.start()
console.log(`pid ${process.pid} listening on ${socketPath}`);
}

}

function send(name, args) {
ipc.server.broadcast('message', JSON.stringify({ type: 'push', name, args }))
}

module.exports = { init, send }`

But I get an error:
TypeError: handle.setSimultaneousAccepts is not a function at ChildProcess.target._send (internal/child_process.js:761:16) at ChildProcess.target.send (internal/child_process.js:676:19) at sendHelper (internal/cluster/utils.js:22:15) at send (internal/cluster/master.js:351:10) at internal/cluster/master.js:317:5 at SharedHandle.add (internal/cluster/shared_handle.js:29:3) at queryServer (internal/cluster/master.js:311:10) at Worker.onmessage (internal/cluster/master.js:246:5) at ChildProcess.onInternalMessage (internal/cluster/utils.js:43:8) at ChildProcess.emit (events.js:215:7)

Any help is welcome thanks.

Electron的server只能运行的C盘吗
我把app装在D盘 发现服务的运行目录在C盘