问题描述
您好,我正在尝试使用 application/octet-stream' 内容类型将本地图像从 Flutter 发送到 Azure 认知服务。 我遵循了以下内容,但似乎缺少示例。唯一的例子是'application/json'
Future getAnalisis() async {
final uri =
"https://****.cognitiveservices.azure.com/vision/v3.1/analyze?visualFeatures=Categories,Description&details=Landmarks";
final respon = await http.post(
uri,body: _file,headers: {
'Ocp-Apim-Subscription-Key': '*****','Content-Type': 'application/octet-stream'
},);
_imageVision = serializers.deserializeWith(
ImageVision.serializer,jsonDecode(respon.body));
notifyListeners();
}
而 _file
来自
final pickedFile = await picker.getimage(source: ImageSource.camera);
if (pickedFile != null) _file = File(pickedFile.path);
我也尝试了以下但它当然错误
body: jsonDecode({'url' : _file.path}),'Content-Type': 'application/json'
},
目前我的错误信息是
Invalid request body "File:
'/storage/emulated/0/Android/data/com.example.testRun/files/Pictures/7702e794-3a57-4a3a-a271-fd7c0964544d
4388330820207050041.jpg'".
解决方法
body: _file.readAsBytesSync(),