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PaydayFrontend/Services/IUniversityService.cs

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+using System.Text.Json;
+using PaydayFrontend.Models;
+
+namespace PaydayFrontend.Services;
+
+public interface IUniversityService
+{
+    public Task<List<University>> GetAllUniversity(); 
+}
+
+public class UniversityService : IUniversityService
+{
+    private readonly HttpClient _httpClient;
+
+    public UniversityService(HttpClient httpClient)
+    {
+        _httpClient = httpClient;
+        _httpClient.BaseAddress = new Uri("https://payday.zetcraft.ru");
+    }
+
+    public async Task<List<University>> GetAllUniversity()
+    {
+        var response = await _httpClient.GetAsync("v1/public/university");
+        var result = await response.Content.ReadAsStringAsync();
+        var university = JsonSerializer.Deserialize<List<University>>(result, new JsonSerializerOptions
+        {
+            PropertyNameCaseInsensitive = true
+        });
+        return university;
+    }
+}