mapo-core/MP.INVE/Services/IOApiService.cs

using Microsoft.Extensions.Configuration;
using MP.INVE.Data;
using NLog;
using System.Text.Json;

namespace MP.INVE.Services
{
    /// <summary>
    /// Classe per chiamare metodi da MP-IO
    /// 
    /// rif: 
    /// https://www.ezzylearning.net/tutorial/making-http-requests-in-blazor-server-apps
    /// https://wellsb.com/csharp/aspnet/blazor-httpclientfactory-and-web-api/
    /// </summary>
    public class IOApiService
    {
        private readonly IHttpClientFactory _clientFactory;
        private static ILogger<MiDataService> _logger = null!;
        private static IConfiguration _configuration = null!;



        private static Logger Log = LogManager.GetCurrentClassLogger();

        private static string MpIoBaseUrl = "";

        public IOApiService(IHttpClientFactory clientFactory, IConfiguration configuration, ILogger<MiDataService> logger)
        {
            _logger = logger;
            _logger.LogInformation("Starting IOApiService INIT");
            _configuration = configuration;
            _clientFactory = clientFactory;
            // conf url x chiamate REST
            MpIoBaseUrl = _configuration.GetValue<string>("ServerConf:MpIoBaseUrl");
        }
        /// <summary>
        /// Effettua chiamata ad MP-IO
        /// </summary>
        /// <param name="relUrl">URL metodo relativo alla base path di MP-IO</param>
        /// <returns></returns>
        public async Task<string> callMpIoUrlGet(string relUrl)
        {
            string result = "";
            var request = new HttpRequestMessage(HttpMethod.Get, $"{MpIoBaseUrl}{relUrl}");
            request.Headers.Add("Accept", "application/vnd.github.v3+json");
            var client = _clientFactory.CreateClient();
            Log.Info($"Richiesta call per {MpIoBaseUrl}{relUrl}");
            var response = await client.SendAsync(request);
            if (response.IsSuccessStatusCode)
            {
                var stringResponse = await response.Content.ReadAsStringAsync();
                result = stringResponse;
                Log.Info($"Richiesta call per {MpIoBaseUrl}{relUrl}");
            }
            else
            {
                result = "NO";
                Log.Error($"Errore in chaimata | code {response.StatusCode} | {response.Content}");
            }
            return result;
        }
    }
}