我正在尝试在 Flutter 中制作一个使用 Spotify API 的应用程序。我特别需要使用 Spotify Web Api，因为它是唯一允许访问用户私有(private)播放列表的 API。
我正在尝试编写身份验证代码，但是当我发送 GET 请求时，我会得到 HTML 作为返回。
这是我正在使用的代码:
void _auth() async{
final String state = randomAlphaNumeric(20);
final Map<String, String> authQueryParameters = {
"client_id": SPOTIFY_CLIENT_ID,
"response_type": "code",
"redirect_uri": "painless_playlist://callback",
"state": state,
"scope": "playlist-read-private playlist-read-collaborative playlist-modify-private playlist-modify-public user-library-read"
};
Uri uri = new Uri.https(SPOTIFY_ACCOUNT_AUTHORITY, "authorize", authQueryParameters);
print(uri.toString());
HttpClientRequest request = await httpClient.getUrl(uri);
HttpClientResponse response = await request.close();
await response.transform(Utf8Decoder()).listen(print);
}
这就是返回的内容:
<!DOCTYPE html>
<html lang="en" dir="ltr" ng-app="accounts" ng-csp ng-strict-di>
<head>
<meta charset="utf-8">
<title ng-bind="('loginTitle' | localize) + ' - Spotify'">Spotify</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<base href="/">
<link rel="icon" href="https://accounts.scdn.co/images/favicon.ace4d8543bbb017893402a1e9d1ac1fa.ico">
<link href="https://accounts.scdn.co/css/index.2298e26e3e5796a7bb68.css" media="screen" rel="stylesheet">
<script async defer
src="https://www.google.com/recaptcha/api.js?render=explicit"
nonce="wLHnpa4sDVHdmLiYTMXAZw=="></script>
<script defer src="https://accounts.scdn.co/js/index.2298e26e3e5796a7bb68.js" sp-bootstrap></script>
<meta ng-non-bindable sp-bootstrap-data='{"country":"US","captchaSiteKey":null,"useCaptcha":false,"BON":["0","0",1206798229]}'>
</head>
<body ng-controller="LoginController">
<div ng-include="template"></div>
</body>
</htm
我不知道该怎么办。我是否应该弄清楚如何打开浏览器并显示此 html？我进行了搜索，一些资源说在浏览器中打开 uri，而不是发出 GET 请求，但这只是在 Spotify 网站上显示错误页面。
我完全不知道该做什么；任何帮助将不胜感激!
最佳答案
您可以将此代码用于 Spotify API。它还可以用于其他 API 调用。这里使用flutter_web_auth 0.1.2包。
void authenticate() async {
// Present the dialog to the user
final result = await FlutterWebAuth.authenticate(
url:
"https://accounts.spotify.com/authorize?client_id=xxxxxxxxxxxxxxxxxxxxxxxxxxxxx&redirect_uri=yourname:/&scope=user-read-currently-playing&response_type=token&state=123",
callbackUrlScheme: "yourname",
);
// Extract token from resulting url
final token = Uri.parse(result);
String at = token.fragment;
at = "http://website/index.html?$at"; // Just for easy persing
var accesstoken = Uri.parse(at).queryParameters['access_token'];
print('token');
print(accesstoken);
}
添加到AndroidManifest.xml android\app\src\main
...
</activity>
<activity android:name="com.linusu.flutter_web_auth.CallbackActivity" >
<intent-filter android:label="flutter_web_auth">
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="yourname" />
</intent-filter>
</activity>
</application>
</manifest>
关于dart - Flutter:如何验证 get 请求返回 html 的 api，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/53992126/