Post API不起作用，但对扑扑的邮递员有效

Question

我正在开发一个flutter项目，在api上我遇到了一个问题。它在postman中可以正常工作，但在flutter中给出post方法错误。 请帮助我，我已经使用了可能的解决方案。

代码：

var body = jsonEncode({
        "userid": "2",
        "CUSTOMERID":"158",
        "OFFSET":"0"
});
final response = await http.post(
  "http://18.191.223.160/webservices/FoodSubCategoryList",
   headers: {
  "Accept": "application/json",
  "Tokenvalue": "sOzz0Y6O",
  "Content-Type": "application/json"
  }, body: body
);

邮递员：-

Answer 1

尝试

     http.Response response = await http.post("http://18.191.223.160/webservices/FoodSubCategoryList",
      body: { "userid": "2",
        "CUSTOMERID":"158",
        "OFFSET":"0"},
       headers: {
  "Accept": "application/json",
  "Tokenvalue": "sOzz0Y6O",
  "Content-Type": "application/json"
  });
      var responseJson = json.decode(response.body);

代替此

var body = jsonEncode({
        "userid": "2",
        "CUSTOMERID":"158",
        "OFFSET":"0"
});
final response = await http.post(
  "http://18.191.223.160/webservices/FoodSubCategoryList",
   headers: {
  "Accept": "application/json",
  "Tokenvalue": "sOzz0Y6O",
  "Content-Type": "application/json"
  }, body: body
);

我希望对您有帮助

Answer 2

更新依赖项http：^ 0.12.1