将 StringContent Json 转换为 byte[]

Question

// 需要使用此人在 byte[] 中转换为 Json 来完成 api，我尝试了一些我在这里找到的不同方法，但我无法使其工作heelp

        static async void MakeRequest()
        {
            var client = new HttpClient();
            var queryString = HttpUtility.ParseQueryString(string.Empty);

                var person = new Person();
                person.id = "1234";
                person.Name = "John Doe";
                person.Email = "  ";
                person.individualIdentificationCode = "0000";
                person.order = "1";
                person.action = "DIGITAL-SIGNATURE";
                person.signurl = "https://sandbox.portaldeassinaturas.com.br/Assinatura/AssinarEletronicoFrame/152124?chave=";


                var json = JsonConvert.SerializeObject(person);
                var data = new StringContent(json, Encoding.UTF8, "application/json");
                


                // Request headers
                client.DefaultRequestHeaders.Add("Token", "{}");

            var uri = "https://api-sbx.portaldeassinaturas.com.br/api/v2/document/create?" + queryString;

            HttpResponseMessage response;

            // Request body
            byte[] byteData = Encoding.UTF8.GetBytes(data);

            using (var content = new ByteArrayContent(byteData))
            {
                content.Headers.ContentType = new 
 MediaTypeHeaderValue("application/Json");
                response = await client.PostAsync(uri, content);
            }

        }
    }
}

Answer 1

您看到的错误是因为 GetBytes 需要一个 char[] or string. But you are trying to pass a StringContent 类型的对象并且编译器没有可用的转换。 但是：你甚至不需要那个！

因为 StringContent "is-a" ByteArrayContent ( .. "is-a" HttpContent, 这是 PostAsync 所期望的), 只需将它传递给PostAsync:

response = await client.PostAsync(uri, data);

AND 当然，一如既往：不要在每次调用时都创建一个新的 HttpClient！

HttpClient is intended to be instantiated once and re-used throughout the life of an application. Instantiating an HttpClient class for every request will exhaust the number of sockets available under heavy loads. This will result in SocketException errors. - Source

将 StringContent Json 转换为 byte[]

transform StringContent Json into byte[]

c#

api

rest

httpclient