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How To Consume REST API in C#.NET using HttpClient | .Net Core

HttpClient class provides a base class for sending/receiving the HTTP requests/responses from a URL. It’s supported to the async feature of .NET framework.

The HttpClient is able to process multiple concurrent requests. It’s a layer over HttpWebRequest and HttpWebResponse.

All methods with HttpClient are asynchronous.

Example for making a Get/POST Request,
    var encriptedUserLogin = "hijksds@34dff@556";
    var encriptedPwd = "jsdjhll!23392mf544134";

    //GET CALL
    string apiURL = "http://localhost:62028/api/Users/Authenticate";
    UriBuilder builder = new UriBuilder(apiURL);                       
    builder.Query = "Username="+ encriptedUserLogin + "&Password="+ encriptedPwd + "";

    using (var client = new HttpClient())
    {
        HttpResponseMessage response = client.GetAsync(builder.Uri).Result;
        if (response.IsSuccessStatusCode)
        {
            UserModel userResult = response.Content.ReadAsAsync<UserModel>().Result;                               
        }
    }

    //POST CALL
    using (var client1 = new HttpClient())
    {
        var userDataModel = new UserModel() { Username = encriptedUserLogin, Password = encriptedPwd };

        var postTask = client1.PostAsJsonAsync<UserModel>(apiURL, userDataModel);
        postTask.Wait();

        var result = postTask.Result;
        if (result.IsSuccessStatusCode)
        {
            var readTask = result.Content.ReadAsAsync<UserModel>();
            readTask.Wait();
            var userRes = readTask.Result;
        }
    }

Model Class,
    public class UserModel
    {
        public int Id { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public string Username { get; set; }
        public string Password { get; set; }
        public string Token { get; set; }
    }

By Anil Singh | Rating of this article (*****)

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