CourseWorkElectronicsShop/ElectronicsShop/ElectronicsShopShopClientApp/APIClient.cs

using ElectronicsShopContracts.BindingModels;
using ElectronicsShopContracts.ViewModels;
using Newtonsoft.Json;
using System.Collections.Generic;
using System.Net.Http.Headers;
using System.Text;

namespace ElectronicsShopUserApp {
    public class APIClient {
        private static readonly HttpClient _client = new();

        public static ClientViewModel? Client { get; set; } = null;

        public static void Connect(IConfiguration configuration) {
            _client.BaseAddress = new Uri(configuration["IPAddress"]);
            _client.DefaultRequestHeaders.Accept.Clear();
            _client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
        }

        public static T? GetRequset<T>(string requestUrl) {
            var response = _client.GetAsync(requestUrl);
            var result = response.Result.Content.ReadAsStringAsync().Result;
            if (response.Result.IsSuccessStatusCode) {
                return JsonConvert.DeserializeObject<T>(result);
            }
            else {
                throw new Exception(result);
            }
        }

        public static void PostRequest<T>(string requstUrl, T model) {
            var json = JsonConvert.SerializeObject(model);
            var data = new StringContent(json, Encoding.UTF8, "application/json");

            var response = _client.PostAsync(requstUrl, data);

            var result = response.Result.Content.ReadAsStringAsync().Result;
            if (!response.Result.IsSuccessStatusCode) {
                throw new Exception(result);
            }
        }

        public static void ListPostRequest<T>(string requstUrl, T model, int count, int orderID) {
            var list = new List<string>() {
                JsonConvert.SerializeObject(model),
                JsonConvert.SerializeObject(count),
				JsonConvert.SerializeObject(orderID),
			};

            var json = JsonConvert.SerializeObject(list);

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

			var response = _client.PostAsync(requstUrl, data);

			var result = response.Result.Content.ReadAsStringAsync().Result;
			if (!response.Result.IsSuccessStatusCode) {
				throw new Exception(result);
			}
		}
	}
}