httpclient

Hopefully no more AppCrash, when Server does not respond.

Jugenddienst Stunden/Models/Auth.cs

@@ -4,37 +4,56 @@ using System.Text;
 using System.Threading.Tasks;
 using ZXing.QrCode.Internal;
 
-namespace Jugenddienst_Stunden.Models
+namespace Jugenddienst_Stunden.Models {
-{
 
-    class Auth
+	class Auth {
-    {
 
 		public Hours hours;
 
 		public static async Task<string> GetApiDataWithAuthAsync(string url, string token) {
-			using (HttpClient client = new HttpClient()) {
 			try {
+				// Erstellen eines HttpClient-Objekts
+				using (HttpClient client = new HttpClient() { Timeout = TimeSpan.FromSeconds(5) }) {
+					try {
+
 						client.DefaultRequestHeaders.Add("Accept", "application/json");
 
 						// Hinzufügen des Bearer-Tokens zum Authorization-Header
 						client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", token);
 
+						//Beim Debugging im Lokalen Netz mit meinem Smartphone kommt es hier zu
+						//system.net.webexception nachricht = socket closed
+						//Grund: Falscher DNS-Server liefert falsche Server-IP
+
+						using (HttpResponseMessage HttpResponseMessage = await client.GetAsync(url).ConfigureAwait(false)) {
+							if (HttpResponseMessage.StatusCode == System.Net.HttpStatusCode.OK) {
+								using (HttpContent HttpContent = HttpResponseMessage.Content) {
+									string responseData = await HttpContent.ReadAsStringAsync();
+									return responseData;
+								}
+							}
+						}
+
 						// Senden der Anfrage und Abrufen der Antwort
-					HttpResponseMessage response = await client.GetAsync(url);
+						//HttpResponseMessage response = await client.GetAsync(url);
 
 						// Überprüfen, ob die Anfrage erfolgreich war
-					response.EnsureSuccessStatusCode();
+						//response.EnsureSuccessStatusCode();
 
 						// Lesen und Rückgabe der Antwort als String
-					string responseData = await response.Content.ReadAsStringAsync();
+						//string responseData = await response.Content.ReadAsStringAsync();
-					return responseData;
+						//return responseData;
 					} catch (HttpRequestException e) {
 						// Fehlerbehandlung
 						Console.WriteLine($"An error occurred: {e.Message}");
 						return null;
 					}
 				}
+			} catch (Exception e) {
+				Console.WriteLine(e.Message);
+				return null;
+			}
+			return null;
 		}
 
 		public static async Task Main(string[] args) {