使用reactjs实现Facebook API登录
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并将“赞”按钮放在页面上。但是，facebook登录按钮必须包装在标记中：
<fb:login-button/>目前，我已将Facebook登录教程中的所有代码粘贴到index.html中，这是项目中唯一的HTML文件，其中包含React应用程序。但是，我需要将最后一个具有实际登录按钮的部分放到我的React组件中。当我尝试这样做时，出现以下错误：
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.jsxsdk.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.
如何使登录按钮产生反应？
回答：
我已经弄清楚了如何使用ReactJS修改Login API的Facebook教程。我希望这可以帮助其他为此奋斗的人。
首先，在需要登录链接的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，在您的render方法中，确保您有一些将调用该handleClick的HTML：
<a href="#" onClick={this.handleClick}>Login</a>注意，这与教程中的代码相同，但是放置在ReactJS组件中。唯一的区别是您必须策略性地绑定此绑定，以使Facebook
API函数成为您的react组件的一部分。该登录将以从FB.getLoginStatus（）给出的响应中解析出的响应消息结束。您还可以从该响应对象中取出令牌，然后使用诸如password-
facebook-token之类的令牌将其发送到后端进行身份验证。
以上是 使用reactjs实现Facebook API登录 的全部内容， 来源链接： utcz.com/qa/426831.html
