React googleyolo

Simple googleyolo Provider and withGoogleyolo HOC-style method that fishes the library out of the context and passes it to the "connected" components as a prop.

Googleyolo is of course what google calls its smartlock / one-tap sign-up and sign-in library.

Live demo here!

Usage

Feel free to look at the source code for the simplest of examples!

You'll be using it somewhat like ...

// somewhere near your app's entry point: index.js, app.js etc.

import { YoloProvider } from 'react-googleyolo'
// import YoloProvider from 'react-googleyolo' // also works
class App extends PureComponent {
  render() {
    return (
      <YoloProvider>
        <TheRestOfYourApp />
      </YoloProvider>
    )
  }
}

// in a component that needs googleyolo

import { withGoogleyolo } from 'react-googleyolo'
// ...
import { authenticateWithYourBackend } from '../api'

class Header extends PureComponent {
  state = { isLoading: false }

  retrieve = googleyolo =>
    googleyolo.retrieve().then(
      credential => {
        this.setState({ isLoading: false })

        // imaginary method, where you hit your backend with the idToken
        // to verify it really is valid, then sign them in and get their User object back
        authenticateWithYourBackend(credential.idToken).then(user => {
          this.setState(user)
        })
      },
      error => {
        this.setState({ isLoading: false })
      }
    )

  componentDidMount() {
    const { googleyolo } = this.props
    if (googleyolo) {
      this.setState({ isLoading: true })
      this.retrieve(googleyolo)
    }
  }

  componentDidUpdate(prevProps) {
    const { googleyolo } = this.props
    const { isLoading } = this.state

    if (googleyolo & !isLoading && !prevProps.googleyolo) {
      this.setState({ isLoading: true })
      this.retrieve(googleyolo)
    }
  }

  render() {
    const { isLoading, user } = this.state
    if (isLoading) {
      return <div>Loading auth...</div>
    }

    if (user) {
      return <div>You are logged in as {user.displayName}</div>
    }

    // Imaginary component that signs you in
    // It probably also uses `googleyolo` to call `.hint()`!
    return <GoogleLogin />
  }
}

export default withGoogleyolo(Header)

We expose a Provider, which loads the googleyolo client library. All this came about because google didn't seem to publish an npm package for it! The Provider then simply puts the googleyolo object in the context for any component further down the tree to use.

We also expose a withGoogleyolo helper method to fish out googleyolo from the context, without you going into the hassle of defining context types.

But because defining a context type is all that "connect" method does, we also provide a GoogleyoloShape in case you are comfortable with your components using things straight out of context.

Automatic Retrieval

In case the above seems like too much work, you may also provide a clientId string and an onRetrieveSuccess method to the Provider. This will make it do the retrieve call for you, calling your method afterwards with the received credential!

return (
  <YoloProvider
    clientId={process.env.REACT_APP_GOOGLE_CREDENTIALS_CLIENT_ID}
    onRetrieveSuccess={this.onRetrieveSuccess}
    onRetrieveFailure={this.onRetrieveFailure}
  >
    <Home />
  </YoloProvider>
)

User Signout

We also expose a handy Logout component you can customize to your heart's content. All it really does is googleyolo.disableAutoSignIn() for you on click, and then call its onAutoSignInDisabled you optionally gave it.

return <Logout />

// feel free to pass in children

return <Logout>Click here to logout forever</Logout>

// Or specify a different type of node if you don't want it to be a button

return <Logout node="span" />

User Signin re-prompt

Finally and due to popular demand, we now offer a similar Login button. Give it a clientId and it will make Google's official login flow appear. You may also give it something to do onLoginSuccess, or error, making this component a bit of a cross between the Provider and the Logout button.

return <Login clientId="iGotThisFromGoogle" />

// feel free to pass in children

return (
  <Login
    clientId={process.env.REACT_APP_GOOGLE_CREDENTIALS_CLIENT_ID}
    onRetrieveSuccess={this.onLoginSuccess}
    onLoginFailure={this.onRetrieveFailure}
  >
    Would you like to login?
  </Login>
)

// Or specify a different type of node if you don't want it to be a button

return <Login node="span" clientId="somanyapikeys" />