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https://github.com/magus/react-native-facebook-login

React Native component wrapping the native Facebook SDK login button and manager
https://github.com/magus/react-native-facebook-login

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React Native component wrapping the native Facebook SDK login button and manager

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README 

        
# Give [react-native-fbsdk](https://github.com/facebook/react-native-fbsdk) a try!



This project is no longer maintained. If you would like to maintain it, please reach out with a pull request.



# React Native : Facebook SDK Login Button





    NPM downloads

    NPM version




`` provides a [React Native][react-native] component wrapping the native [Facebook SDK login button](https://developers.facebook.com/docs/reference/ios/current/class/FBSDKLoginButton/) and [manager](https://developers.facebook.com/docs/reference/ios/current/class/FBSDKLoginManager/).



preview.gif



**Note**: Demo above includes debug text to confirm login (i.e. user name, email and access token). ``, by default, will only display the native blue 'Log in with Facebook' button.



## Table of contents

- [Usage](#usage)

- [Setup](#setup)

- [Example project](#example-project)

- [Documentation](#documentation)

- [Contributing](#contributing)

- [Copyright and license](#copyright-and-license)



## Usage



### FBLogin

Provides a React Native component which wraps the Facebook SDK `FBSDKLoginButton`.



##### Defaults

```js

import React, { Component } from 'react';

import PropTypes from 'prop-types';

var { FBLogin, FBLoginManager } = require('react-native-facebook-login');



class Login extends Component {

  render() {

    return (

      

    );

  }

};

```



##### Exhaustive

```js

import React, { Component } from 'react';

import PropTypes from 'prop-types';

var { FBLogin, FBLoginManager } = require('react-native-facebook-login');



class Login extends Component {

  render() {

    var _this = this;

    return (

       { this.fbLogin = fbLogin }}

        permissions={["email","user_friends"]}

        loginBehavior={FBLoginManager.LoginBehaviors.Native}

        onLogin={function(data){

          console.log("Logged in!");

          console.log(data);

          _this.setState({ user : data.credentials });

        }}

        onLogout={function(){

          console.log("Logged out.");

          _this.setState({ user : null });

        }}

        onLoginFound={function(data){

          console.log("Existing login found.");

          console.log(data);

          _this.setState({ user : data.credentials });

        }}

        onLoginNotFound={function(){

          console.log("No user logged in.");

          _this.setState({ user : null });

        }}

        onError={function(data){

          console.log("ERROR");

          console.log(data);

        }}

        onCancel={function(){

          console.log("User cancelled.");

        }}

        onPermissionsMissing={function(data){

          console.log("Check permissions!");

          console.log(data);

        }}

      />

    );

  }

};

```



#### Login Behavior

You can change the [FBSDK login behavior](https://developers.facebook.com/docs/reference/ios/current/class/FBSDKLoginManager/#FBSDKLoginBehavior%20enum) of the button by including the `loginBehavior` prop on the `FBLogin` component.



- `FBLoginManager.LoginBehaviors.Native`: This is the default behavior, and indicates logging in through the native Facebook app may be used. The SDK may still use Safari instead.

- `FBLoginManager.LoginBehaviors.Browser`: Attempts log in through the Safari or SFSafariViewController, if available.

- `FBLoginManager.LoginBehaviors.SystemAccount`: Attempts log in through the Facebook account currently signed in through the device Settings.

- `FBLoginManager.LoginBehaviors.Web`: Attempts log in through a modal UIWebView pop up.



## FBLoginManager

Wraps features of the native iOS Facebook SDK `FBSDKLoginManager` interface.



See [example/components/facebook/FBLoginMock.js](example/components/facebook/FBLoginMock.js) for an example using only the exposed native methods of the FBLoginManager to recreate the native `FBSDKLoginButton`.



### Usage

```js

var {FBLoginManager} = require('react-native-facebook-login');



FBLoginManager.setLoginBehavior(FBLoginManager.LoginBehaviors.Web); // defaults to Native



FBLoginManager.loginWithPermissions(["email","user_friends"], function(error, data){

  if (!error) {

    console.log("Login data: ", data);

  } else {

    console.log("Error: ", error);

  }

})

```



## FBLoginManager.Events

A variety of events are emitted across the React Native bridge back to your javascript components. This means you can take advantage of the `RCTDeviceEventEmitter.addListener` method to listen, and create subscribers that will execute, for each action. In fact, this is how the onEvent handlers are implemented for the FBLogin component (see [FBLogin.ios.js](FBLogin.ios.js)).



### Usage

```js

var RCTDeviceEventEmitter = require('RCTDeviceEventEmitter');

var {FBLoginManager} = require('react-native-facebook-login');



...



var subscriber = RCTDeviceEventEmitter.addListener(

  FBLoginManager.Events["Login"],

  (eventData) => {

    console.log("[Login] ", eventData);

  }

);



...



// Be sure to remove subscribers when they are no longer needed

// e.g. componentWillUnmount

subscriber.remove();

```



## Setup

### [Android](/android)

[Click here for Android setup instructions](/android/README.md)



### iOS

**Skip this step if you are using RN >= 0.60**

```sh

npm install --save react-native-facebook-login

```

- Run ```open node_modules/react-native-facebook-login```

- Have your react native xcode project open and drag `RCTFBLogin.xcodeproj` into your `Libraries` group.

- Select your main project in the navigator to bring up settings

- Under `Build Phases` expand the `Link Binary With Libraries` header

- Scroll down and click the `+` to add a library

- Find and add `libRCTFBLogin.a` under the `Workspace` group

- ⌘+B



**Note**: If your build fails, you most likely forgot to setup the [Facebook SDK](#facebook-sdk)



#### Facebook SDK

[Facebook : Quick Start for iOS](https://developers.facebook.com/docs/facebook-login/ios)



Be sure to [configure your .plist file](https://developers.facebook.com/docs/ios/getting-started#xcode). This file is located under the `ios/` directory of your generated react-native project. It should be in the same folder as your `AppDelegate.m` file.



As of iOS 9 you must now explicitly whitelist requests your application makes in the `Info.plist`. Be sure to [follow the instructions for iOS 9](https://developers.facebook.com/docs/ios/ios9) during the setup process.



- Specifically, you will need to add the following to your `Info.plist` file



```xml

LSApplicationQueriesSchemes



        fbapi

        fb-messenger-api

        fbauth2

        fbshareextension



```



##### Adding the Facebook SDK (RN < 0.60)

**SKIP THIS STEP IF YOU ARE USING RN >= 0.60**

- Run `open node_modules/react-native-facebook-login/FacebookSDK`

- Open your main project in xcode and right click on your project’s name in the left sidebar and select “New Group” and type in “Frameworks”.

- Select all the `.framework` files in the FacebookSDK folder and click drag them into the Frameworks folder/group you just created in xcode or highlight the Frameworks group in left sidebar and go to File > Add files to "yourProjectName" and select the `.framework` files.

- Select your main project in the navigator to bring up settings

- Under `Build Settings` scroll down to `Search Paths`

- Add the following path to your `Framework Search Paths`



```sh

$(SRCROOT)/../node_modules/react-native-facebook-login/FacebookSDK

```



framework-search-paths



##### AppDelegate.m modifications

- Add the following import statements for FBSDK kits at the top of your `AppDelegate.m`



```objectivec

#import 

#import 

```



- Modify the application didFinishLaunchingWithOptions method to return FBSDKApplicationDelegate instead of `YES`



```objectivec

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

  // ...

  self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];

  UIViewController *rootViewController = [[UIViewController alloc] init];

  rootViewController.view = rootView;

  self.window.rootViewController = rootViewController;

  [self.window makeKeyAndVisible];

  // return YES;

  return [[FBSDKApplicationDelegate sharedInstance] application:application

                                    didFinishLaunchingWithOptions:launchOptions];

}

```



- Add the following new methods after the application didFinishLaunchingWithOptions method above, before the `@end`.



```objectivec

// Facebook SDK

- (void)applicationDidBecomeActive:(UIApplication *)application {

    [FBSDKAppEvents activateApp];

}



- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {

    return [[FBSDKApplicationDelegate sharedInstance] application:application

                                                          openURL:url

                                                sourceApplication:sourceApplication

                                                       annotation:annotation];

}

```



example-fbsdk-frameworks



## Example project

### Toy

```sh

open example/ios/examples.xcodeproj

```



See the [example](example/) project for a working example.



## Documentation

TODO



## Contributing

Just submit a pull request!



Use the simple toy project under the example directory to verify your changes.



```sh

open example/toy.xcodeproj

```



## Contact

[@magusnn (Twitter)](http://twitter.com/magusnn)



[iamnoah.com](http://iamnoah.com)



## todo

- Auth with javascript Api as an exposed method on button

- Clean up duplicate code in login methods

- documentation for FBLogin component props, expected values (FB SDK links), etc.

- expose RCT_EXPORT functions on FBLogin, docs as component method, use 'refs' to call - login/logout/getCredentials as methods via FBLogin component ref

- writePermissions parameter for button



## Copyright and license



Code and documentation copyright 2015 Noah. Code released under [the MIT license](https://github.com/magus/react-native-facebook-login/blob/master/LICENSE).



[react-native]: http://facebook.github.io/react-native/

[fb-sdk-loginbutton]: https://developers.facebook.com/docs/facebook-login/ios/v2.3#login-button

[fb-sdk-loginmanager]: https://developers.facebook.com/docs/facebook-login/ios/v2.3#login-apicalls