Delete Lambda prototype

Prototype the User DELETE lambda. Amplify does not include this functionality, so putting it in a Lambda with the fine-grained API. This currently does not invalidate outstanding tokens nor does it clean up the database.
@claytonwwilson You will want to add the clean up code instead of the deleted stuff in UserDeleter

Listify/app/src/main/java/com/example/listify/AuthManager.java

@@ -8,6 +8,7 @@ import com.amplifyframework.auth.options.AuthSignUpOptions;
 import com.amplifyframework.auth.result.AuthSignInResult;
 import com.amplifyframework.auth.result.AuthSignUpResult;
 import com.amplifyframework.core.Amplify;
+import com.example.listify.data.User;
 import org.json.JSONException;
 import org.json.JSONObject;
 
@@ -85,6 +86,10 @@ public class AuthManager {
         waiting = false;
     }
 
+    public void signOutSuccess() {
+        waiting = false;
+    }
+
     public void startSignUp(String email, String password) throws AuthException {
         this.email = email;
         this.password = password;
@@ -124,6 +129,11 @@ public class AuthManager {
         throwIfAuthError();
     }
 
+    public void deleteUser(Requestor requestor) {
+        requestor.deleteObject("N/A", User.class);
+        Amplify.Auth.signOut(this::signOutSuccess, error -> setAuthError(error));
+    }
+
 
 
     public static Properties loadProperties(Context context, String path) throws IOException, JSONException {

Listify/app/src/main/java/com/example/listify/MainActivity.java

@@ -14,8 +14,8 @@ import androidx.navigation.ui.AppBarConfiguration;
 import androidx.navigation.ui.NavigationUI;
 import com.amplifyframework.auth.AuthException;
 import com.example.listify.data.Item;
-import com.example.listify.data.ListEntry;
 import com.example.listify.data.List;
+import com.example.listify.data.ListEntry;
 import com.google.android.material.navigation.NavigationView;
 import org.json.JSONException;
 
@@ -60,7 +60,7 @@ public class MainActivity extends AppCompatActivity {
         //------------------------------------------------------------------------------------------//
 
 
-        boolean testAPI = false;
+        boolean testAPI = true;
         //----------------------------------API Testing---------------------------------------------//
 
         if (testAPI) {
@@ -78,6 +78,9 @@ public class MainActivity extends AppCompatActivity {
             }
 
             Requestor requestor = new Requestor(authManager, configs.getProperty("apiKey"));
+
+            authManager.deleteUser(requestor);
+
             //The name is the only part of this that is used, the rest is generated by the Lambda.
             List testList = new List(-1, "New List", "user filled by lambda", Instant.now().toEpochMilli());
             //Everything except addedDate is used for ItemEntry

Listify/app/src/main/java/com/example/listify/Requestor.java

@@ -24,20 +24,30 @@ public class Requestor {
         client = new OkHttpClient();
     }
 
-    public <T> void getObject(String id, Class<T> classType, Receiver<T> receiver) {
-        getObject(id, classType, receiver, null);
-    }
-
     public <T> void getListOfIds(Class<T> ofType, Receiver<Integer[]> successHandler, RequestErrorHandler failureHandler) {
         String getURL = DEV_BASEURL + "/" + ofType.getSimpleName() + "?id=-1";
         Request postRequest = buildBaseRequest(getURL, "GET", null);
         launchCall(postRequest, successHandler, Integer[].class, failureHandler);
     }
 
+    public <T> void getObject(String id, Class<T> classType, Receiver<T> receiver) {
+        getObject(id, classType, receiver, null);
+    }
+
     public <T> void getObject(String id, Class<T> classType, Receiver<T> successHandler, RequestErrorHandler failureHandler) {
         String getURL = DEV_BASEURL + "/" + classType.getSimpleName() + "?id=" + id;
-        Request postRequest = buildBaseRequest(getURL, "GET", null);
-        launchCall(postRequest, successHandler, classType, failureHandler);
+        Request getRequest = buildBaseRequest(getURL, "GET", null);
+        launchCall(getRequest, successHandler, classType, failureHandler);
+    }
+
+    public void deleteObject(String id, Class classType) {
+        deleteObject(id, classType, null);
+    }
+
+    public void deleteObject(String id, Class classType, RequestErrorHandler failureHandler) {
+        String deleteURL = DEV_BASEURL + "/" + classType.getSimpleName() + "?id=" + id;
+        Request deleteRequest = buildBaseRequest(deleteURL, "DELETE", "{}");
+        launchCall(deleteRequest, null, classType, failureHandler);
     }
 
     public void postObject(Object toPost) throws JSONException {

Listify/app/src/main/java/com/example/listify/data/User.java

@@ -0,0 +1,4 @@
+package com.example.listify.data;
+
+public class User {
+}