如何在Web Api中使用带有响应的Httpclient获取对象

Question

my web api like

    public async Task<IHttpActionResult> RegisterUser(User user)
    {
        //User Implementation here

        return Ok(user);
    }

I am using HTTPClient to request web api as mentioned below.

var client = new HttpClient();
string json = JsonConvert.SerializeObject(model);
var result = await client.PostAsync( "api/users", new StringContent(json, Encoding.UTF8, "application/json"));

Where i can find user object in my result request which is implemented on client application?

Answer 1

You can use (depands on what you need), and de-serialize it back to user object.

await result.Content.ReadAsByteArrayAsync();
//or
await result.Content.ReadAsStreamAsync();
//or
await result.Content.ReadAsStringAsync();

Fe, if your web api is returning JSON, you could use

var user = JsonConvert.DeserializeObject<User>( await result.Content.ReadAsStringAsync());

EDIT: as cordan pointed out, you can also add reference to System.Net.Http.Formatting and use:

await result.Content.ReadAsAsync<User>()

Answer 2

string Baseurl = GetBaseUrl(microService);
string url = "/client-api/api/token";

using (HttpClient client = new HttpClient())`enter code here`
{
    client.BaseAddress = new Uri(Baseurl);
    client.DefaultRequestHeaders.Clear();
    client.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "application/x-www-form-urlencoded");

    List<KeyValuePair<string, string>> keyValues = new List<KeyValuePair<string, string>>();

    keyValues.Add(new KeyValuePair<string, string>("client_id", "5196810"));
    keyValues.Add(new KeyValuePair<string, string>("grant_type", "password"));
    keyValues.Add(new KeyValuePair<string, string>("username", "abc.a@gmail.com"));
    keyValues.Add(new KeyValuePair<string, string>("password", "Sonata@123"));
    keyValues.Add(new KeyValuePair<string, string>("platform", "FRPWeb"));


    HttpContent content = new FormUrlEncodedContent(keyValues);
    content.Headers.ContentType = new MediaTypeHeaderValue("application/x-www-form-urlencoded");
    content.Headers.ContentType.CharSet = "UTF-8";

    var result = client.PostAsync(url, content).Result;
    string resultContent = result.Content.ReadAsStringAsync().Result;
}