README.md

useFacebookSDK

a react hook that loads facebook sdk

hook size - 1.2kB

For some reason facebook official docs don't provide a react example as if the react team and the social login team dont like each other :)

This repo contains all you need to use facebook sdk in any react application.

---

install

# put this in .npmrc ( either global or in a repository root ) 
@viggin543:registry=https://npm.pkg.github.com

# run 
npm install @viggin543/use-facebook-sdk@1.0.2

Then in a react component:

// make sure this comp is mounted only once
// else every time facebook sdk will be fetched again
// and you dont want multiple instances of fb sdk in your app 
const SomeRootLevelComponnent = () => {
    const { fbSdkReady } =  useFacebookSdk('<your-fb-app-id>', 'v9.0', 'en_US')
    return fbSdkReady ? <p>sdk ready</p> : <p>sdk loading ...</p>
}

To test this works, open network tab and see call fo fetch facebook sdk was made

---

custom login button

// a simple example on how to use FB sdk ( window.FB )
// to implement a custom login button
function FBLoginButton() {
  const handleFbResponse = function (authResponse: AuthResponse) {
    const token = authResponse?.accessToken
      //  do something with fb tocken. like calling the backend...

  }
  const onClick = () => {
    FB.getLoginStatus(function (response: FBAuthResponse) {
      if (response.status == 'connected') {
        handleFbResponse(response.authResponse)
      } else {
        FB.login(async function ({ authResponse, status }: FBAuthResponse) {
          if (status == 'connected') {
            handleFbResponse(authResponse)
          }
        })
      }
    })
  }
  return (
      <button onClick={onClick}>CONTINUE WITH FACEBOOK</button>
  )
}

export interface AuthResponse {
  accessToken: string
  userID: string
  expiresIn: number
  signedRequest: string
  graphDomain: string
  data_access_expiration_time: number
}

export interface FBAuthResponse {
  authResponse: AuthResponse
  status: 'connected' | 'not_authorized' | 'unknown'
}

cheers!