Custom plugin without the use of a package.json

[jeremytenjo]

plugin/FirebaseAuth/web.js

import { WebPlugin } from '@capacitor/core'

export class FirebaseAuthWeb extends WebPlugin {
  async echo(value) {
    console.log('hello')
    return value
  }
}

plugin/FirebaseAuth/index.js

import { registerPlugin } from '@capacitor/core'

const FirebaseAuth = registerPlugin('FirebaseAuth', {
  web: () => import('./web').then((m) => new m.FirebaseAuthWeb()),
})

export { FirebaseAuth }

pages/home.js

import { FirebaseAuth } from '../plugins/FirebaseAuth'

export default function Home() {
  const init = async () => {
    const hello = await FirebaseAuth.echo('hello')
    console.log(hello)
  }

  useEffect(() => {
    init()
  }, [])

  return (
    <div>Hello</div>
  )
}

Using capacitor/cli": "^3.0.0-beta.3" "@capacitor/core": "^3.0.0-beta.3",