diff --git a/src/main/java/RestAPISchnittstelle/RestApiClient.java b/src/main/java/RestAPISchnittstelle/RestApiClient.java
index 1fdb3e2..b4b21c4 100644
--- a/src/main/java/RestAPISchnittstelle/RestApiClient.java
+++ b/src/main/java/RestAPISchnittstelle/RestApiClient.java
@@ -8,7 +8,7 @@ import java.nio.charset.StandardCharsets;
 
 import Logik.ElternAccount;
 import Logik.Kind;
-import com.google.gson.Gson;
+import com.google.gson.*;
 
 /**
  * noch nicht getestet
@@ -32,8 +32,8 @@ public class RestApiClient implements IRestAPI{
 
 		RestApiClient client1 = new RestApiClient();
 
-		client1.post("Gericht", "{\"name\" : \"Svens Beine\", \"69.69\", \"beschreibung\" : \"Muss net schmegge, muss wirge\"}");
 
+		System.out.println(client1.nextId("Benutzer"));
 	}
 
 	/**
@@ -42,7 +42,7 @@ public class RestApiClient implements IRestAPI{
 	 * @param controllerName Name des aufzurufenden Controllers
 	 */
 	@Override
-	public String get(String controllerName) {
+	public void get(String controllerName) {
 		URI apiUri = URI.create(String.format("%s/%s", urlBase, controllerName));
 
 		HttpRequest httpRequest = HttpRequest.newBuilder()
@@ -54,17 +54,12 @@ public class RestApiClient implements IRestAPI{
 			// Send the request and get the response
 			HttpResponse<String> httpResponse = client.send(httpRequest, HttpResponse.BodyHandlers.ofString());
 
-			Kind test = gson.fromJson(httpResponse.body(), Kind.class);
-
 			// Print the response status code and body
 			System.out.println("Status Code: " + httpResponse.statusCode());
-			System.out.println("Response Body: " + test.getName());
-
-			return httpResponse.body();
+			System.out.println("Response Body: " + httpResponse.body());
 		} catch (Exception e) {
 			e.printStackTrace();
 		}
-		return "";
 	}
 
 	/**
@@ -74,7 +69,7 @@ public class RestApiClient implements IRestAPI{
 	 * @param id Id der Aufzurufenden Zeile
 	 */
 	@Override
-	public String get(String controllerName, int id) {
+	public void get(String controllerName, int id) {
 		URI apiUri = URI.create(String.format("%s/%s/%s", urlBase, controllerName, id));
 
 		HttpRequest httpRequest = HttpRequest.newBuilder()
@@ -89,12 +84,10 @@ public class RestApiClient implements IRestAPI{
 			// Print the response status code and body
 			System.out.println("Status Code: " + httpResponse.statusCode() + httpResponse.body());
 
-			return httpResponse.body();
 			//System.out.println("Response Body: " + test);
 		} catch (Exception e) {
 			e.printStackTrace();
 		}
-		return "";
 	}
 
 	/**
@@ -105,7 +98,7 @@ public class RestApiClient implements IRestAPI{
 	 * @param bezahlt TODO Warum ist das hier?
 	 */
 	@Override
-	public String get(String controllerName, int id, boolean bezahlt) {
+	public void get(String controllerName, int id, boolean bezahlt) {
 		URI apiUri = URI.create(String.format("%s/%s?%s&%s", urlBase, controllerName, id, bezahlt));
 
 		HttpRequest httpRequest = HttpRequest.newBuilder()
@@ -120,12 +113,9 @@ public class RestApiClient implements IRestAPI{
 			// Print the response status code and body
 			System.out.println("Status Code: " + httpResponse.statusCode());
 			System.out.println("Response Body: " + httpResponse.body());
-
-			return httpResponse.body();
 		} catch (Exception e) {
 			e.printStackTrace();
 		}
-		return "";
 	}
 
 	/**
@@ -218,4 +208,34 @@ public class RestApiClient implements IRestAPI{
 		}
 	}
 
+
+	public int nextId(String controllerName){
+		URI apiUri = URI.create(String.format("%s/%s/nextId", urlBase, controllerName));
+
+		HttpRequest httpRequest = HttpRequest.newBuilder()
+											 .uri(apiUri)
+											 .GET()
+											 .build();
+
+		try {
+			// Send the request and get the response
+			HttpResponse<String> httpResponse = client.send(httpRequest, HttpResponse.BodyHandlers.ofString());
+
+			// Print the response status code and body
+			System.out.println("Status Code: " + httpResponse.statusCode());
+			System.out.println("Response Body: " + httpResponse.body());
+
+			JsonElement jsonElement = JsonParser.parseString(httpResponse.body());
+			JsonArray jsonArray = jsonElement.getAsJsonArray();
+
+			JsonObject json = jsonArray.get(0).getAsJsonObject();
+
+			return json.get("auto_increment").getAsInt();
+
+		} catch (Exception e) {
+			e.printStackTrace();
+			return -1;
+		}
+	}
+
 }