options headers key lowercase

[LiangLuDev]

    Options options = Options();
    options.headers['AppID'] = '2000004950';
    var response = await http.post<Map>('/api/checkcfg/2000004950',
        data: {
          "keywords": firmwareVersion,
          "cmpmethod": 1,
          "version": version,
          "imei": imei,
        },
        options: options
    );

print

headers : {content-type: application/json; charset=utf-8, appid: 2000004950, Timestamp: 1589550316, Sign: , Connection: close}

but can use InterceptorsWrapper

class HeaderInterceptor extends InterceptorsWrapper {
  @override
  onRequest(RequestOptions options) async {
    options.connectTimeout = 1000 * 45;
    options.receiveTimeout = 1000 * 45;
    options.headers['AppID'] = '2000005054';
    debugPrint('HeaderInterceptor : ${options.headers}');
    return options;
  }
}

log print

headers : {content-type: application/json; charset=utf-8, appid: 2000004950, AppID: 2000005054, Timestamp: 1589551032, Sign: , Connection: close}

[shaxxx]

Possible duplicate of #641

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. If this is still an issue, please make sure it is up to date and if so, add a comment that this is still an issue to keep it open. Thank you for your contributions.