Merge pull request 'nextId Methode' (#14) from samu_masken into master

Reviewed-on: #14

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"));
 	}
 
 	/**
@@ -54,11 +54,9 @@ 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());
+			System.out.println("Response Body: " + httpResponse.body());
 		} catch (Exception e) {
 			e.printStackTrace();
 		}
@@ -210,4 +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;
+		}
+	}
+
 }