[英]flutter: DioError [DioErrorType.response]: XMLHttpRequest error
[英]DioErrorType.RESPONSE invalid media type
我的 flutter 項目在 android 上運行良好,但是在嘗試將其安裝到 web 時我遇到了一些麻煩。 我正在使用Graphql Faker作為假后端,它適用於 android 但對於 flutter Z2567A5EC9705EB7AC2C984033E06 它總是在下面拋出錯誤89DZ6
╔╣ Request ║ POST
║ http://localhost:9002/graphql
╚══════════════════════════════════════════════════════════════════════════════════════════
╔╣ DioError ║ Status: 500 Internal Server Error
║ http://localhost:9002/graphql
╚══════════════════════════════════════════════════════════════════════════════════════════
╔ DioErrorType.RESPONSE
║ {
║ errors: [{message: invalid media type}]
║ }
╚══════════════════════════════════════════════════════════════════════════════════════════
下面是客戶端的外觀
GraphQLClient graphQLClient() {
final dio = Dio(
BaseOptions(
connectTimeout: 3 * 1000,
contentType: 'application/json',
),
);
final host = () {
try {
if (Platform.isAndroid) return MY_IP;
} catch (_) {}
return 'localhost';
}();
final graphqlEndpoint = 'http://$host:9002/graphql';
final WebSocketLink _wsLink = WebSocketLink('ws://$host:4000/graphql');
final Link _dioLink = DioLink(
graphqlEndpoint,
client: dio,
);
// split request based on type
final _link = Link.split(
(request) => request.isSubscription,
_wsLink,
_dioLink,
);
return GraphQLClient(
cache: GraphQLCache(),
link: _link,
);
}
任何解決此問題的評論/答案將不勝感激
這看起來像 CORS 錯誤,graphql-faker 文檔有一個關於 cors 的部分:
--cors-origin CORS: Specify the custom origin for the Access-Control-Allow-Origin header, by default it is the same as Origin header from the request
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.