使用 reactjs 实现 Facebook API 登录

Implement Facebook API login with reactjs

本文关键字:API 登录 Facebook 实现 reactjs 使用      更新时间:2023-09-26

我正在使用Facebook的Javascript SDK进行身份验证。我已经能够正确导入 SDK 并在我的页面上放置一个"赞"按钮。但是,Facebook登录按钮必须包装在标签中:

<fb:login-button/>

我目前将 Facebook 登录教程中的所有代码粘贴到我的索引.html中,这是我项目中唯一的 html 文件,其中包含 React 应用程序。但是,我需要将具有实际登录按钮的最后一部分放入我的 React 组件中。当我尝试这样做时,我收到以下错误:

ReactifyError: /Users/ritmatter/reps/js/components/Signup.jsx: Parse Error: Line 82: Unexpected end of input while parsing file: /Users/ritmatter/reps/js/components/Signup.jsx
sdk.js:61 The "fb-root" div has not been created, auto-creating
ping?client_id=894010190618709&domain=localhost&origin=1&redirect_uri=http%3A%2F%2Fstatic.ak.facebo…:1 Given URL is not allowed by the Application configuration.: One or more of the given URLs is not allowed by the App's settings.  It must match the Website URL or Canvas URL, or the domain must be a subdomain of one of the App's domains.

如何让登录按钮做出反应?

我已经弄清楚了如何使用ReactJS修改登录API的Facebook教程。

首先,在您想要登录链接的 react 组件中,包含以下代码:

componentDidMount: function() {
  window.fbAsyncInit = function() {
    FB.init({
      appId      : '<YOUR_APP_ID>',
      cookie     : true,  // enable cookies to allow the server to access
                        // the session
      xfbml      : true,  // parse social plugins on this page
      version    : 'v2.1' // use version 2.1
    });
    // Now that we've initialized the JavaScript SDK, we call
    // FB.getLoginStatus().  This function gets the state of the
    // person visiting this page and can return one of three states to
    // the callback you provide.  They can be:
    //
    // 1. Logged into your app ('connected')
    // 2. Logged into Facebook, but not your app ('not_authorized')
    // 3. Not logged into Facebook and can't tell if they are logged into
    //    your app or not.
    //
    // These three cases are handled in the callback function.
    FB.getLoginStatus(function(response) {
      this.statusChangeCallback(response);
    }.bind(this));
  }.bind(this);
  // Load the SDK asynchronously
  (function(d, s, id) {
    var js, fjs = d.getElementsByTagName(s)[0];
    if (d.getElementById(id)) return;
    js = d.createElement(s); js.id = id;
    js.src = "//connect.facebook.net/en_US/sdk.js";
    fjs.parentNode.insertBefore(js, fjs);
  }(document, 'script', 'facebook-jssdk'));
},
// Here we run a very simple test of the Graph API after login is
// successful.  See statusChangeCallback() for when this call is made.
testAPI: function() {
  console.log('Welcome!  Fetching your information.... ');
  FB.api('/me', function(response) {
  console.log('Successful login for: ' + response.name);
  document.getElementById('status').innerHTML =
    'Thanks for logging in, ' + response.name + '!';
  });
},
// This is called with the results from from FB.getLoginStatus().
statusChangeCallback: function(response) {
  console.log('statusChangeCallback');
  console.log(response);
  // The response object is returned with a status field that lets the
  // app know the current login status of the person.
  // Full docs on the response object can be found in the documentation
  // for FB.getLoginStatus().
  if (response.status === 'connected') {
    // Logged into your app and Facebook.
    this.testAPI();
  } else if (response.status === 'not_authorized') {
    // The person is logged into Facebook, but not your app.
    document.getElementById('status').innerHTML = 'Please log ' +
      'into this app.';
  } else {
    // The person is not logged into Facebook, so we're not sure if
    // they are logged into this app or not.
    document.getElementById('status').innerHTML = 'Please log ' +
    'into Facebook.';
  }
},
// This function is called when someone finishes with the Login
// Button.  See the onlogin handler attached to it in the sample
// code below.
checkLoginState: function() {
  FB.getLoginStatus(function(response) {
    this.statusChangeCallback(response);
  }.bind(this));
},
handleClick: function() {
  FB.login(this.checkLoginState());
},

然后,在呈现方法中,确保有一些 HTML 可以调用该句柄单击:

<a href="#" onClick={this.handleClick}>Login</a>

请注意,这与本教程中的代码相同,但放置在 ReactJS 组件中。唯一的区别是你必须战略性地绑定它,使Facebook API函数成为你的反应组件的一部分。此登录将以从FB.getLoginStatus()给出的响应解析的响应消息结束。您还可以从该响应对象中取出令牌,并将其发送到后端,以便使用passport-facebook-token之类的东西进行身份验证。

我使用了 Facebook 身份验证流的承诺

Mixins/Facebook.js

const promises = {
    init: () => {
        return new Promise((resolve, reject) => {
            if (typeof FB !== 'undefined') {
                resolve();
            } else {
                window.fbAsyncInit = () => {
                    FB.init({
                        appId      : '<app_id>',
                        cookie     : true, 
                        xfbml      : true,  
                        version    : 'v2.5'
                    });
                    resolve();
                };
                (function(d, s, id) {
                    var js, fjs = d.getElementsByTagName(s)[0];
                    if (d.getElementById(id)) return;
                    js = d.createElement(s); js.id = id;
                    js.src = "//connect.facebook.net/en_US/sdk.js";
                    fjs.parentNode.insertBefore(js, fjs);
                }(document, 'script', 'facebook-jssdk'));
            }
        });
    },
    checkLoginState: () => {
        return new Promise((resolve, reject) => {
            FB.getLoginStatus((response) => {
                response.status === 'connected' ? resolve(response) : reject(response);
            });
        });
    },
    login: () => {
        return new Promise((resolve, reject) => {
            FB.login((response) => {
                response.status === 'connected' ? resolve(response) : reject(response);
            });
        });
    },
    logout: () => {
        return new Promise((resolve, reject) => {
            FB.logout((response) => {
                response.authResponse ? resolve(response) : reject(response);
            });
        });
    },
    fetch: () => {
        return new Promise((resolve, reject) => {
            FB.api(
                '/me', 
                {fields: 'first_name, last_name, gender'},
                response => response.error ? reject(response) : resolve(response)
            );
        });
    }
}
export const Facebook = {
    doLogin() {
        this.setState({
            loading: true
        }, () => {
            promises.init()
                .then(
                    promises.checkLoginState,
                    error => { throw error; }
                )
                .then(
                    response => { this.setState({status: response.status}); },
                    promises.login
                )
                .then(
                    promises.fetch,
                    error => { throw error; }
                )
                .then(
                    response => { this.setState({loading: false, data: response, status: 'connected'}); },
                    error => { throw error; }
                )
                .catch((error) => { 
                    this.setState({loading: false, data: {}, status: 'unknown'});
                    console.warn(error); 
                });
        });
    },
    doLogout() {
        this.setState({
            loading: true
        }, () => {
            promises.init()
                .then(
                    promises.checkLoginState,
                    error => { throw error; }
                )
                .then(
                    promises.logout,
                    error => { this.setState({data: {}, status: 'unknown'}); }
                )
                .then(
                    response => { this.setState({loading: false, data: {}, status: 'unknown'}); },
                    error => { throw error; }
                )
                .catch(error => { 
                    this.setState({loading: false, data: {}, status: 'unknown'});
                    console.warn(error); 
                });
        });
    },
    checkStatus() {
        this.setState({
            loading: true
        }, () => {
            promises.init()
                .then(
                    promises.checkLoginState,
                    error => { throw error; }
                )
                .then(
                    response => { this.setState({status: response.status}); },
                    error => { throw error; }
                )
                .then(
                    promises.fetchUser,
                    error => { throw error; }
                )
                .then(
                    response => { this.setState({loading: false, data: response, status: 'connected'}); },
                    error => { throw error; }
                )
                .catch((error) => { 
                    this.setState({loading: false, data: {}, status: 'unknown'});
                    console.warn(error); 
                });
        });
    }
};

Profile.jsx

import {Facebook} from './mixins/Facebook.js';
import {Button} from 'react-bootstrap';
const ProfileHandler = React.createClass({
    mixins: [Facebook],
    componentDidMount() {
        this.checkStatus();
    },
    getInitialState() {
        return {
            status: 'unknown',
            loading: false,
            data: {}
        };
    },
    render() {
        const loading = this.state.loading ? <p>Please wait, profile is loading ...</p> : null;
        const message = this.state.status === 'connected'
            ? (<div>
                Hi {data.name}!
                <Button onClick={this.doLogout}>Logout</Button>
              </div>)
            : (<Button onClick={this.doLogin}>Login</Button>);
        return (
            <div>
                {message}
                {loading}
            </div>
        );
    }
});

ritmatter 给出了一个很好的答案,但我会展示我是如何做到这一点的。 我想使用 Facebook 的登录按钮而不是我自己的按钮来触发回调以检查登录状态。 登录按钮可能如下所示:

<div class="fb-login-button" onlogin="checkLoginState" data-size="medium" data-show-faces="false" data-auto-logout-link="false"></div>

该按钮具有 onlogin 属性,jsx 解析器不支持该属性。 在 react 方式中使用 data-onlogin 不起作用,所以我只是在 componentDidMount 中添加了按钮:

        componentWillMount: function () {
                window['statusChangeCallback'] = this.statusChangeCallback;
                window['checkLoginState'] = this.checkLoginState;
        },
        componentDidMount: function () {
            var s = '<div class="fb-login-button" ' +
                'data-scope="public_profile,email" data-size="large" ' +
                'data-show-faces="false" data-auto-logout-link="true" ' +
                'onlogin="checkLoginState"></div>';
            var div = document.getElementById('social-login-button-facebook')
            div.innerHTML = s;
        },
        componentWillUnmount: function () {
            delete window['statusChangeCallback'];
            delete window['checkLoginState'];
        },
        statusChangeCallback: function(response) {
           console.log(response);
        },
        // Callback for Facebook login button
        checkLoginState: function() {
            console.log('checking login state...');
            FB.getLoginStatus(function(response) {
               statusChangeCallback(response);
            });
        },
        render: function() {
            return (
                <div id='social-login-button-facebook'>
                </div>
            );
        }

剩下的就是在挂载组件时触发按钮,如果你想自动调用checkLoginState。

我在这里发布我的解决方案,因为答案帮助我实现了它,但是如果没有

FB.Event.subscribe('auth.statusChange', function(response)

RubyFanatic的回答。此外,"登录"让我感到非常困惑。在我看来根本不需要。

我想分享它,因为这是一个 c&p 解决方案,这里是我针对 fb api v2.8 的完整代码(当然可以踢 react-bootstrap):

/* global FB*/
import React, { Component } from 'react';
import { Grid, Row, Col } from 'react-bootstrap';
export default class Login extends Component {
  constructor(props) {
    super(props);
    this.checkLoginState = this.checkLoginState.bind(this);
    this.handleClick = this.handleClick.bind(this);
    this.testAPI = this.testAPI.bind(this);
    this.statusChangeCallback = this.statusChangeCallback.bind(this);
  }
  componentDidMount() {
    window.fbAsyncInit = function() {
      FB.init({
        appId      : 'YOURAPIKEYHERE',
        cookie     : true,
        xfbml      : true,
        version    : 'v2.8'
      });
      FB.AppEvents.logPageView();
      FB.Event.subscribe('auth.statusChange', function(response) {
        if (response.authResponse) {
          this.checkLoginState();
        } else {
          console.log('---->User cancelled login or did not fully authorize.');
        }
      }.bind(this));
    }.bind(this);
    // Load the SDK asynchronously
    (function(d, s, id) {
      var js, fjs = d.getElementsByTagName(s)[0];
      if (d.getElementById(id)) return;
      js = d.createElement(s); js.id = id;
      js.src = '//connect.facebook.net/en_US/sdk.js';
      fjs.parentNode.insertBefore(js, fjs);
    }(document, 'script', 'facebook-jssdk'));
  }
  // Here we run a very simple test of the Graph API after login is
  // successful.  See statusChangeCallback() for when this call is made.
  testAPI() {
    console.log('Welcome! Fetching your information.... ');
    FB.api('/me', function(response) {
      console.log('Successful login for: ' + response.name);
      document.getElementById('status').innerHTML =
        'Thanks for logging in, ' + response.name + '!';
    });
  }
  // This is called with the results from from FB.getLoginStatus().
  statusChangeCallback(response) {
    if (response.status === 'connected') {
      // Logged into your app and Facebook.
      this.testAPI();
    } else if (response.status === 'not_authorized') {
      // The person is logged into Facebook, but not your app.
      document.getElementById('status').innerHTML = 'Please log ' +
        'into this app.';
    } else {
      // The person is not logged into Facebook, so we're not sure if
      // they are logged into this app or not.
      document.getElementById('status').innerHTML = 'Please log ' +
      'into Facebook.';
    }
  }
  checkLoginState() {
    FB.getLoginStatus(function(response) {
      this.statusChangeCallback(response);
    }.bind(this));
  }
  handleClick() {
    FB.login(this.checkLoginState());
  }
  render() {
    return (
      <main>
        <Grid fluid>
            <h1>
              Facebook Login
            </h1>
        </Grid>
        <Grid>
          <Row>
            <Col xs={12}>
              <a href="#" onClick={this.handleClick} onlogin={this.checkLoginState}>Login</a>
              <div id="status"></div>
            </Col>
          </Row>
        </Grid>
      </main>
    );
  }
}

这是我用来获取登录回调的解决方案。您可以在渲染方法中为您的 Facebook 登录按钮添加以下代码:

<div className="fb-login-button" data-max-row="5" 
     data-size="large" 
     data-show-faces="false" 
     data-auto-logout-link="false" 
     href="javascript:void(0)">Login</div>

在代码中添加以下行:

componentDidMount: function() {
    // facebook signin  button render
    window.fbAsyncInit = function() {
      FB.init({
        appId      : 'replace with your app id here',
        cookie     : true,  // enable cookies to allow the server to access
        // the session
        xfbml      : true,  // parse social plugins on this page
        version    : 'v2.1' // use version 2.1
      });
      // login callback implementation goes inside the function() { ... } block
      FB.Event.subscribe('auth.statusChange', function(response) {
        // example implementation
        if (response.authResponse) {
          console.log('Welcome!  Fetching your information.... ');
          FB.api('/me', function(response) {
            console.log('Good to see you, ' + response.name + '.');
          });
        } else {
          console.log('User cancelled login or did not fully authorize.');
        }
      });
    }.bind(this);
    // Load the SDK asynchronously
    (function(d, s, id) {
      var js, fjs = d.getElementsByTagName(s)[0];
      if (d.getElementById(id)) return;
      js = d.createElement(s); js.id = id;
      js.src = "//connect.facebook.net/en_US/sdk.js";
      fjs.parentNode.insertBefore(js, fjs);
    }(document, 'script', 'facebook-jssdk'));
  }
}

呼叫FB。组件初始化期间的 Event.subscribe('auth.statusChange', callback_function) 很重要,因为这基本上是您的登录回调。在这里查看FB。事件文档。

我最近正在为我的一个项目开发Facebook Login,所以在浏览了许多Stackoverflow答案和博客文章之后。我使用 ES6 FatArrow Function 表达式(不包括 .bind(this))编写了一个最小弹性代码。希望这段代码对您有所帮助。

https://gist.github.com/ronit-mukherjee/3e933509643a4ab4e80452bb05c1a073

/*global FB*/
import React, {
  Component
} from 'react';
class FacebookLoginButton extends Component {
  componentDidMount() {
    (function(d, s, id) {
      var js, fjs = d.getElementsByTagName(s)[0];
      if (d.getElementById(id)) {
        return;
      }
      js = d.createElement(s);
      js.id = id;
      js.src = "https://connect.facebook.net/en_US/sdk.js";
      fjs.parentNode.insertBefore(js, fjs);
    }(document, 'script', 'facebook-jssdk'));
    window.fbAsyncInit = () => {
      FB.init({
        appId: '9999999999999999', //Change with your Facebook app id
        autoLogAppEvents: true,
        xfbml: true,
        version: 'v3.0'
      });
      FB.Event.subscribe('auth.statusChange', response => {
        if (response.authResponse) {
          this.checkLoginState();
        } else {
          console.log('[FacebookLoginButton] User cancelled login or did not fully authorize.');
        }
      });
    };
  }
  checkLoginState() {
    FB.getLoginStatus(function(response) {
      this.statusChangeCallback(response);
    }.bind(this));
  }
  login() {
    FB.login(this.checkLoginState(), {
      scope: 'email'
    });
  }
  statusChangeCallback(response) {
    if (response.status === 'connected') {
      this.testAPI();
    } else if (response.status === 'not_authorized') {
      console.log("[FacebookLoginButton] Person is logged into Facebook but not your app");
    } else {
      console.log("[FacebookLoginButton] Person is not logged into Facebook");
    }
  }
  testAPI() {
    FB.api('/me', function(response) {
      console.log('[FacebookLoginButton] Successful login for: ', response);
    });
  }
  render() {
    return ( <
      button className = "btn btn-block btn-fb"
      onClick = {
        () => this.login()
      } >
      <
      i className = "fa fa-facebook" / > Connect with Facebook <
      /button>
    )
  }
}
export default FacebookLoginButton;

我写了一个mixin类来解决这个问题。

https://github.com/genxstylez/react-oauth-mixin

如果您想使用 FB 中的按钮而不是您自己的按钮,这是我能想到的最干净、最简单的方法。

要使用按钮,就这么简单。

<FbLoginBtn
  width="250"
  dataScope="public_profile,email"
  onSuccess={callback}
  onFailure={optionalCallback}
  afterLogin={optionalCallback}
/>

该组件是完全独立的,并且高度可堆肥,因为它不依赖于任何外部依赖项,除了呈现FB登录按钮之外,它没有任何预定义的行为。

import React, { Component } from 'react';
class FbLoginBtn extends Component {
  constructor(props) {
    super(props);
    // post login behavior should be defined at a higher level
    this.onSuccess = this.props.onSuccess || (() => {});
    this.onFailure = this.props.onFailure || (() => {});
    this.onSuccess = this.onSuccess.bind(this);
    this.onFailure = this.onFailure.bind(this);
  }
  componentDidMount() {
    // This is the meat of the component
    // create a script tag, load FB SDK
    // then after script is loaded, set related behavior
    // If you have other components that rely on the FB SDK
    // I recommend extracting this into its own module
    let self = this;
    let scriptTag = document.createElement('script');
    scriptTag.type = 'text/javascript';
    scriptTag.src = "http://connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.4&appId=xxxxx";
    scriptTag.addEventListener('load', function (e) {
      self.FB = window.FB;
      // I don't like exposing the SDK to global scope
      window.FB = null;
      // This subscribe the callback when login status change
      // Full list of events is here
      // https://developers.facebook.com/docs/reference/javascript/FB.Event.subscribe/v2.9
      self.FB.Event.subscribe('auth.statusChange', self.onStatusChange.bind(self));
    });
    document.body.appendChild(scriptTag);
  }
  onStatusChange(response) {
    if (response.status === 'connected') {
      const { accessToken } = response.authResponse;
      // I have a afterLogin optional callback
      // which takes care of ads landing, invitation or any other custom behavior
      this.onSuccess(accessToken, this.props.afterLogin);
    } else {
      this.onFailure();
    }
  }
  render() {
    return (
      <div 
        className="fb-login-button" 
        data-width={this.props.width}
        data-max-rows="1"
        data-size="large"
        data-button-type="login_with"
        data-show-faces="false"
        data-auto-logout-link="true"
        data-use-continue-as="false"
        data-scope={this.props.dataScope}
      >
      </div>
    );
  }
}
export default FbLoginBtn;

可能迟到了,但@Zoreslav答案真的对我有很大帮助。我只是将其转换为钩子,这样我就可以在 sdk 未加载时在 fb 登录按钮上禁用或添加加载器。

import { useState, useEffect, useCallback } from 'react';
const initializeFb = () =>
  // eslint-disable-next-line no-unused-vars
  new Promise((resolve, _reject) => {
    if (typeof FB !== 'undefined') {
      resolve();
    } else {
      // eslint-disable-next-line func-names
      window.fbAsyncInit = function() {
        // eslint-disable-next-line no-undef
        FB.init({
          appId: 'APP ID HERE',
          cookie: true,
          xfbml: true,
          version: 'v2.8',
        });
        // eslint-disable-next-line no-undef
        FB.AppEvents.logPageView();
        resolve();
      };
      // eslint-disable-next-line func-names
      (function(d, s, id) {
        let js;
        const fjs = d.getElementsByTagName(s)[0];
        if (d.getElementById(id)) {
          return;
        }
        // eslint-disable-next-line prefer-const
        js = d.createElement(s);
        js.id = id;
        js.src = 'https://connect.facebook.net/en_US/sdk.js';
        fjs.parentNode.insertBefore(js, fjs);
      })(document, 'script', 'facebook-jssdk');
    }
  });
const useFacebook = () => {
  const [fb, setFB] = useState([]);
  const [isReady, setReady] = useState(false);
  const initFacebook = useCallback(async () => {
    await initializeFb();
    // eslint-disable-next-line no-undef
    if (typeof FB !== 'undefined') {
      // eslint-disable-next-line no-undef
      setFB(FB);
      setReady(true);
    }
  });
  useEffect(() => {
    initFacebook();
  }, [initFacebook]);
  return [fb, isReady];
};
export default useFacebook;

然后我可以像这样在不同的组件上重用它

const Login= ()=>{
    const [FBInstance, isReady] = useFacebook();
    return (<Button onClick()=>{
      FBInstance.getLoginStatus(resp=>{  console.log(resp) })
   }></Button>)
}

我从 react-facebook-login 中提取了代码并将其更新为使用钩子。

import {useEffect, useState} from 'react'
const _extends = Object.assign || function (target) {
    for (let i = 1; i < arguments.length; i++) {
        const source = arguments[i]
        for (const key in source) {
            if (Object.prototype.hasOwnProperty.call(source, key)) {
                target[key] = source[key]
            }
        }
    }
    return target
}
const useFacebook = function () {
    const appId = process.env.NEXT_PUBLIC_FACEBOOK_APP_ID
    const [isReady, setIsReady] = useState(false)
    const facebook = {
        login: async () => {
            const {authResponse, status} = await new Promise(resolve => window.FB.login(resolve, {scope: 'public_profile,email'}))
            if (!authResponse) return {status}
            return new Promise(resolve => window.FB.api('/me', {locale: 'en_US', fields: 'name,email,picture'}, me => {
                _extends(me, authResponse)
                resolve(me)
            }))
        }
    }
    useEffect(() => {
        window.fbAsyncInit = function () {
            FB.init({
                appId,
                autoLogAppEvents: true,
                xfbml: true,
                version: 'v8.0'
            })
            setIsReady(true)
        };
        (function (d, s, id) {
            if (d.getElementById(id)) {
                setIsReady(true)
                return
            }
            const fjs = d.getElementsByTagName(s)[0]
            const js = d.createElement(s)
            js.id = id
            js.src = `https://connect.facebook.net/en-US/sdk.js`
            js.async = true
            js.defer = true
            fjs.parentNode.insertBefore(js, fjs)
        })(document, 'script', 'facebook-jssdk')
    }, [])
    return [facebook, isReady]
}
export default useFacebook

如何使用:

const [facebook, isFacebookReady] = useFacebook()
const handleFacebookLogin = async () => {
  const response = await facebook.login()
  console.log(response)
}
<button type='button' onClick={handleFacebookLogin} disabled={!isFacebookReady}>Login with Facebook</button>

尝试使用此库:https://github.com/keppelen/react-facebook-login

工作非常简单:

import React from 'react';
import ReactDOM from 'react-dom';
import FacebookLogin from 'react-facebook-login';
const responseFacebook = (response) => {
  console.log(response);
}
ReactDOM.render(
  <FacebookLogin
    appId="1088597931155576"
    autoLoad={true}
    callback={responseFacebook} />,
  document.getElementById('demo')
);

在下面找到最简单的代码:

import React, { Component } from 'react';
import './App.css';
import FacebookLogin from 'react-facebook-login';
import GoogleLogin from 'react-google-login';
class App extends Component {
render() {
const responseFacebook = (response) => {
console.log(response);
}
const responseGoogle = (response) => {
console.log(response);
}
return (
<div className="App">
<h1>LOGIN WITH FACEBOOK AND GOOGLE</h1>
<FacebookLogin
appId="" //APP ID NOT CREATED YET
fields="name,email,picture"
callback={responseFacebook}
/>
<br />
<br />
<GoogleLogin
clientId="" //CLIENTID NOT CREATED YET
buttonText="LOGIN WITH GOOGLE"
onSuccess={responseGoogle}
onFailure={responseGoogle}
/>
</div>
);
}
}
export default App;

一个更简单的代码版本,使用 Facebook Javascript SDK for React(函数组件)开发人员。将此代码段添加到函数组件中,并返回一个指向fblogin()

对于愿意使用react-facebook-login模块的人来说,当我们需要比默认权限更多的权限时,它不起作用。登录后会使窗口崩溃。因此,只要您对简单的FB Auth集成感到满意,您就可以关注react-facebook-login,但是如果您需要通过Graph API访问用户的Instagram帐户,那么这可能会对您有所帮助。

注意: 这不会检查您的登录状态。如果您愿意,可以添加额外的代码段。

将其包含在您的index.html文件中

<script async defer crossorigin="anonymous" src="https://connect.facebook.net/en_US/all.js"></script>

并在组件中添加此内容。

//declare a const
const FB = window.FB
async function fbLogin() {
await FB.init({
    appId: '<APP ID>',
    autoLogAppEvents: true,
    xfbml: true,
    version: 'v13.0'       
});
FB.login(function (response) {
    if (response.authResponse) {
        console.log('Welcome!  Fetching your information.... ');
        FB.api('/me', function (response) {
            console.log('Good to see you, ' + response.name + '.');
            console.log('Complete response from Facebook', response)
            FB.getLoginStatus(function (response) {
                if (response.status === 'connected') {
                    let myaccesstoken = response.authResponse.accessToken
                    console.log('Access Token', myaccesstoken)
                }
            });
        });
    } else {
        console.log('User cancelled login or did not fully authorize.');
    }
// mention all your permissions here
}, { scope: 'public_profile,email,pages_show_list,instagram_basic' });

}

最后是一个按钮。

<button onClick={() => fbLogin()}>FB Login</button>