Effect CommunityEC
Effect Community•2y ago
Jonathan Clem

Integrating Electron IPC Handlers with Effect

I'm a bit lost on solving a particular problem around some event listeners.

Imagine I have a program like this:

const program = Effect.gen(function*() {
  // Do some things.
}).pipe(Effect.provideService(AuthStore, authStoreLive))


In some legacy code that I want to move to Effect, I have these Electron IPC handlers.

ipcMain.handle("message", (event, arg1) => {
  return authStoreLive.doSomething(arg1)
})


Note that ipcMain is a global provided by the Electron runtime, and also note that the return value of the handle callback is important, because it's returned back to the process making the IPC.

What I can't figure out is how to set these listeners up inside of my program, run effects, and still return a real value from the callback. Also note that these callbacks are called many times, often several times per second or more. They're not torn down until the application quits.
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