当使用facebook登录api时,javascript代码的响应是什么?
大家好,我刚刚学习了javascript,我正在尝试在创建网页的过程中使用Facebook登录api创建一个登录函数 因此,我试图通过查看登录api的文档来理解代码的含义,但有一点我不明白当使用facebook登录api时,javascript代码的响应是什么?,javascript,facebook,api,authentication,Javascript,Facebook,Api,Authentication,大家好,我刚刚学习了javascript,我正在尝试在创建网页的过程中使用Facebook登录api创建一个登录函数 因此,我试图通过查看登录api的文档来理解代码的含义,但有一点我不明白 <!DOCTYPE html> <html> <head> <title>Facebook Login JavaScript Example</title> <meta charset="UTF-8"> </he
<!DOCTYPE html>
<html>
<head>
<title>Facebook Login JavaScript Example</title>
<meta charset="UTF-8">
</head>
<body>
<script>
function statusChangeCallback(response) { // Called with the results from FB.getLoginStatus().
console.log('statusChangeCallback');
console.log(response); // The current login status of the person.
if (response.status === 'connected') { // Logged into your webpage and Facebook.
testAPI();
} else { // Not logged into your webpage or we are unable to tell.
document.getElementById('status').innerHTML = 'Please log ' +
'into this webpage.';
}
}
function checkLoginState() { // Called when a person is finished with the Login Button.
FB.getLoginStatus(function(response) { // See the onlogin handler
statusChangeCallback(response);
});
}
window.fbAsyncInit = function() {
FB.init({
appId : '{app-id}',
cookie : true, // Enable cookies to allow the server to access the session.
xfbml : true, // Parse social plugins on this webpage.
version : '{api-version}' // Use this Graph API version for this call.
});
FB.getLoginStatus(function(response) { // Called after the JS SDK has been initialized.
statusChangeCallback(response); // Returns the login status.
});
};
function testAPI() { // Testing Graph API after login. See statusChangeCallback() for when this call is made.
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 + '!';
});
}
</script>
<!-- The JS SDK Login Button -->
<fb:login-button scope="public_profile,email" onlogin="checkLoginState();">
</fb:login-button>
<div id="status">
</div>
<!-- Load the JS SDK asynchronously -->
<script async defer crossorigin="anonymous" src="https://connect.facebook.net/en_US/sdk.js"></script>
</body>
</html>
但我不知道“反应”从何而来。结果与任何其他字符相同,而不是响应
当我搜索javascript函数时,我不明白为什么需要响应以及它是如何工作的,所以我留下了一个问题。如果你能告诉我,我会非常感激的。
感谢您阅读这篇长篇文章,祝您度过愉快的一天
FB.api
在后台与api通信,然后将结果传递回回调函数response
在这里只是一个参数名,您可以在该位置使用任何其他您喜欢的参数名。FB.api
在后台与api通信,然后将结果传递回回调函数response
在这里只是一个参数名,您可以在该位置使用您喜欢的任何其他参数名。
function testAPI() { // Testing Graph API after login. See statusChangeCallback() for when this call is made.
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 + '!';
});
}