Flutter HTTP标头 [英] Flutter http headers

问题描述

设置标题映射时，发布请求引发错误。

The post request throwing error while setting the header map.

这是我的代码

Future<GenericResponse> makePostCall(
  GenericRequest genericRequest) {String URL = "$BASE_URL/api/";

Map data = {
  "name": "name",
  "email": "email",
  "mobile": "mobile",
  "transportationRequired": false,
  "userId": 5,
};

Map userHeader = {"Content-type": "application/json", "Accept": "application/json"};


return _netUtil.post(URL, body: data, headers:userHeader).then((dynamic res) {
  print(res);
  if (res["code"] != 200) throw new Exception(res["message"][0]);
  return GenericResponse.fromJson(res);
});

}

`══╡手势引起的异常╞═
抖动：处理手势时抛出了以下断言：
flutter：类型'_InternalLinkedHashMap'不是'Map'类型的子类型此错误消息中的信息可帮助您确定和解决根本原因。
抖动：无论哪种情况，请通过在GitHub上提交错误来报告此断言：
抖动： https://github.com/flutter/flutter/issues/new?template=BUG.md
抖动：
抖动：发生异常时被抛出，这是堆栈：
抖动：＃0 NetworkUtil.post1（package：saranam / network / network_util.dart：50：41）
抖动：＃1 RestDatasource.bookPandit（package：saranam / network / rest_data_source.dart：204：21）

`══╡ EXCEPTION CAUGHT BY GESTURE ╞═ flutter: The following assertion was thrown while handling a gesture: flutter: type '_InternalLinkedHashMap' is not a subtype of type 'Map' flutter: flutter: Either the assertion indicates an error in the framework itself, or we should provide substantially flutter: more information in this error message to help you determine and fix the underlying cause. flutter: In either case, please report this assertion by filing a bug on GitHub: flutter: https://github.com/flutter/flutter/issues/new?template=BUG.md flutter: flutter: When the exception was thrown, this was the stack: flutter: #0 NetworkUtil.post1 (package:saranam/network/network_util.dart:50:41) flutter: #1 RestDatasource.bookPandit (package:saranam/network/rest_data_source.dart:204:21)

有人遇到这个问题吗？我没有找到上述日志的任何线索。

Anybody facing this issue? I didn't find any clue with the above log.

推荐答案

尝试

 Map<String, String> requestHeaders = {
       'Content-type': 'application/json',
       'Accept': 'application/json',
       'Authorization': '<Your token>'
     };

这篇关于Flutter HTTP标头的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！