FA_WEB/OrdersManagement/Services/ServiceBase.cs

using Microsoft.AspNetCore.Components.Authorization;

namespace OrdersManagement.Services;

public class ServiceBase<T> where T : class
{
    private readonly CustomAuthenticationStateProvider _authenticationStateProvider;
    private readonly HttpClient _httpClient;

    protected ServiceBase(IHttpClientFactory httpClientFactory, CustomAuthenticationStateProvider authenticationStateProvider)
    {
        _authenticationStateProvider = authenticationStateProvider;
        _httpClient = httpClientFactory.CreateClient("FaKrosnoApi");
    }
    
    protected async Task<IEnumerable<T>?> GetListAsync(string request)
    {
        Configure();
        
        var response = await _httpClient.GetAsync(request);
        response.EnsureSuccessStatusCode();
        return await response.Content.ReadFromJsonAsync<IEnumerable<T>>();
    }
    
    protected async Task<T?> GetEntityAsync(string request)
    {
        Configure();
        
        var response = await _httpClient.GetAsync(request);
        response.EnsureSuccessStatusCode();
        return await response.Content.ReadFromJsonAsync<T>();
    }

    protected async Task<HttpResponseMessage> PostAsync(string request)
    {
        Configure();
        
        var response = await _httpClient.PostAsync(request, null);
        response.EnsureSuccessStatusCode();
        return response;
    }
    
    protected async Task<HttpResponseMessage> PostAsJsonAsync(string request, T obj)
    {
        Configure();

        var response = await _httpClient.PostAsJsonAsync(request, obj);
        response.EnsureSuccessStatusCode();
        return response;
    }
    
    protected async Task<HttpResponseMessage> PostAsJsonAsync(string request, object obj)
    {
        Configure();

        var response = await _httpClient.PostAsJsonAsync(request, obj);
        response.EnsureSuccessStatusCode();
        return response;
    }
    
    protected async Task<HttpResponseMessage> PutAsJsonAsync(string request, T obj)
    {
        Configure();

        var response = await _httpClient.PutAsJsonAsync(request, obj);
        response.EnsureSuccessStatusCode();
        return response;
    }

    protected async Task<HttpResponseMessage> DeleteAsync(string request)
    {
        Configure();

        var response = await _httpClient.DeleteAsync(request);
        response.EnsureSuccessStatusCode();
        return response;
    }
    
    private void Configure()
    {
        var token = _authenticationStateProvider.GetToken();

        _httpClient.DefaultRequestHeaders.Authorization =
            new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", token);
    }
}