CODE EXAMPLE FOR JAVASCRIPT

how to use graph api with react native

<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.")}/>