How to use graph API with react-native-fbsdk?

Question

I read the document, both on github and Facebook developers docs.
There is only sample, nothing more. No API document.

The code to make a Graph API request is

Answer 1

Thank you @Samuel.

I finally succeed to get user information from Facebook login because of your help!

But I struggled to figure out how can I get username and email literally from the result object cause I am a newbie in React & Javascript.

P.S. result["name"] is the point because it is object!!

So I added some code to yours for other people like me.

If you don't like using your code, just tell me that.

<LoginButton
  onLoginFinished={
    (error, result) => {
      if (error) {
        alert("login has error: " + result.error);
      } else if (result.isCancelled) {
        alert("login is cancelled.");
      } else {

        AccessToken.getCurrentAccessToken().then(
          (data) => {
            let accessToken = data.accessToken
            alert(accessToken.toString())

            const responseInfoCallback = (error, result) => {
              if (error) {
                console.log(error)
                alert('Error fetching data: ' + error.toString());
              } else {
                console.log(result)

                // Here's my code
                alert('Success fetching data: ' + result["name"].toString() + 
                ", " + result["email"].toString()); 
                /*  
                if(your DB already got this email or something unique) {
                  // SignIn()
                } 
                // when your DB doesn't have this email
                else {
                  // Do signUp() with this infomation and SignIn()
                }
                */
              }
            }

            const infoRequest = new GraphRequest(
              '/me',
              {
                accessToken: accessToken,
                parameters: {
                  fields: {
                    string: 'email,name,first_name,middle_name,last_name'
                  }
                }
              },
              responseInfoCallback
            );

            // Start the graph request.
            new GraphRequestManager().addRequest(infoRequest).start()

          }
        )

      }
    }
  }
  onLogoutFinished={() => alert("logout.")}/>

Answer 2

try this

import { GraphRequest, GraphRequestManager } from 'react-native-fbsdk';

export const GetInfoUSer = () => {

return new Promise((resolve, reject) => {

    const infoRequest = new GraphRequest('/me', null, ((error, result) => {
        if (error) {
            reject(error)
        } else {
           resolve(result)
        }
    }))

    new GraphRequestManager().addRequest(infoRequest).start();

  })
}

and then

    onLoginConFacebook = () => {

    LoginManager.logInWithReadPermissions(['public_profile']).then(result => {

        if (result.isCancelled) {
            console.log(':(')
        } else {

            AccessToken.getCurrentAccessToken().then((data) => {

                let myAccessToken = data.accessToken.toString();

                GetInfoUSer().then(response => {
                    console.log(response)
                }).catch(error => {
                    console.log(error)
                })
            }
            ).catch(error => {
                console.log(':(')
            })
        }
    })
}

Answer 3

Unfortunately the react-native-fbsdk documentation is not updated and the examples do not work well.

I got the same problem and I solved it by try and error.

To solve your problem you'll need to change your GraphRequest adding params and fields to it like this:

  <LoginButton
    onLoginFinished={
      (error, result) => {
        if (error) {
          alert("login has error: " + result.error);
        } else if (result.isCancelled) {
          alert("login is cancelled.");
        } else {

          AccessToken.getCurrentAccessToken().then(
            (data) => {
              let accessToken = data.accessToken
              alert(accessToken.toString())

              const responseInfoCallback = (error, result) => {
                if (error) {
                  console.log(error)
                  alert('Error fetching data: ' + error.toString());
                } else {
                  console.log(result)
                  alert('Success fetching data: ' + result.toString());
                }
              }

              const infoRequest = new GraphRequest(
                '/me',
                {
                  accessToken: accessToken,
                  parameters: {
                    fields: {
                      string: 'email,name,first_name,middle_name,last_name'
                    }
                  }
                },
                responseInfoCallback
              );

              // Start the graph request.
              new GraphRequestManager().addRequest(infoRequest).start()

            }
          )

        }
      }
    }
    onLogoutFinished={() => alert("logout.")}/>

You'll need to enable the Remote JS Debug to see the console.log() info. https://facebook.github.io/react-native/docs/debugging.html

And probably you need to get some permissions to get more info than names and email so it's a good idea to look the Facebook Graph API Documentation: https://developers.facebook.com/docs/graph-api/overview/

Reference:

https://github.com/facebook/react-native-fbsdk/issues/105#issuecomment-206501550

Answer 4

Here is an example of a custom button if you want to make one :)

FbLoginButton() {
 LoginManager
  .logInWithReadPermissions(['public_profile'])
  .then(function (result) {
    if (result.isCancelled) {
      alert('Login cancelled');
    } else {
      AccessToken
        .getCurrentAccessToken()
        .then((data) => {
          let accessToken = data.accessToken
          alert(accessToken.toString())

          const responseInfoCallback = (error, result) => {
            if (error) {
              console.log(error)
              alert('Error fetching data: ' + error.toString());
            } else {
              console.log(result)
              alert('Success fetching data: ' + result.toString());
            }
          }

          const infoRequest = new GraphRequest('/me', {
            accessToken: accessToken,
            parameters: {
              fields: {
                string: 'email,name,first_name,middle_name,last_name'
              }
            }
          }, responseInfoCallback);

          // Start the graph request.
          new GraphRequestManager()
            .addRequest(infoRequest)
            .start()

        })
    }
  }, function (error) {
    alert('Login fail with error: ' + error);
   });
  }

Answer 5

My code was not retriving the user email, if you are having the same problem, just put 'email' in parameter's logInWithPermission

Not Working

LoginManager.logInWithPermissions(['public_profile']).then(...)

Working

LoginManager.logInWithPermissions(['public_profile', 'email']).then(...)

All Function

loginWithFacebook = () => {
    LoginManager.logInWithPermissions(['public_profile', 'email']).then(
      login => {
        if (login.isCancelled) {
          console.log('Login Cancelado');
        } else {
          AccessToken.getCurrentAccessToken().then(
            (data) => {
              const accessToken = data.accessToken.toString()
              this.getInfoFromToken(accessToken)
            })
        }
      },
      error => {
        console.log('Erro no login ', console.error(error)
        )
      }
    )
  }

  getInfoFromToken = token => {
    const PROFILE_REQUEST_PARAMS = {
      fields: {
        string: 'id, name, first_name, last_name, birthday, email'
      },
    }
    const profileRequest = new GraphRequest('/me', { token, parameters: PROFILE_REQUEST_PARAMS },
      (error, result) => {
        if (error) {
          console.log('Login Info has an error:', error)
        } else {
          console.log(result)
        }
      },
    )
    new GraphRequestManager().addRequest(profileRequest).start()
  }