Test using Optional in repository

Trying out fetching values from repository as Optional.
Plus set line length to 80

chatto/application.properties

@@ -0,0 +1,7 @@
+## chatto DATASOURCE (DataSourceAutoConfiguration & DataSourceProperties)
+chatto.datasource.url = jdbc:mysql://localhost:3306/chatto_db2?useSSL=false
+chatto.datasource.username = chatto_user
+chatto.datasource.password = password
+chatto.datasource.database-name = chatto_db2
+website-url = 192.168.1.13
+test.bindAddress=192.168.1.106

chatto/src/main/java/org/ros/chatto/controller/AdminRESTController.java

@@ -34,8 +34,8 @@ public class AdminRESTController {
 	private UserService userService;
 
 	@PostMapping(value = "/post/re-encrypt", consumes = { "application/json" })
-	@ResponseBody
-	public ResponseEntity<ReencryptionDTO> reencryptMessages(@RequestBody @Valid List<ReencryptionDTO> reencryptionDTOs,
+	public ResponseEntity<ReencryptionDTO> reencryptMessages(
+			@RequestBody @Valid List<ReencryptionDTO> reencryptionDTOs,
 			Principal principal) {
 		if (reencryptionDTOs.size() > 0) {
 			chatService.reencryptMessages(reencryptionDTOs);
@@ -44,16 +44,16 @@ public class AdminRESTController {
 	}
 
 	@GetMapping(value = "/get/messages/{userName}")
-	@ResponseBody
-	public List<ReencryptionDTO> sendAllMessages(@PathVariable String userName, Principal principal) {
-		List<ReencryptionDTO> reencryptionDTOs = chatService.getAllMessagesForReencryption(principal.getName(), userName);
+	public List<ReencryptionDTO> sendAllMessages(@PathVariable String userName,
+			Principal principal) {
+		List<ReencryptionDTO> reencryptionDTOs = chatService
+				.getAllMessagesForReencryption(principal.getName(), userName);
 		return reencryptionDTOs;
 	}
 
 	@GetMapping(value = "/get/messages/{userName}/{lastMessageTime}")
-	@ResponseBody
-	public List<ChatMessageDTO> sendNewMessages(@PathVariable String userName, @PathVariable String lastMessageTime,
-			Principal principal) {
+	public List<ChatMessageDTO> sendNewMessages(@PathVariable String userName,
+			@PathVariable String lastMessageTime, Principal principal) {
 		System.out.println("Last message time = " + lastMessageTime);
 		DateTimeFormatter formatter = new DateTimeFormatterBuilder()
 				// date/time
@@ -66,9 +66,11 @@ public class AdminRESTController {
 				.optionalStart().appendOffset("+HH", "Z").optionalEnd()
 				// create formatter
 				.toFormatter();
-		Date date = Date.from(OffsetDateTime.parse(lastMessageTime, formatter).toInstant());
+		Date date = Date.from(
+				OffsetDateTime.parse(lastMessageTime, formatter).toInstant());
 
-		List<ChatMessageDTO> chatMessageDTOs = chatService.getNewMessages(principal.getName(), userName, date);
+		List<ChatMessageDTO> chatMessageDTOs = chatService
+				.getNewMessages(principal.getName(), userName, date);
 		return chatMessageDTOs;
 	}
 
@@ -78,11 +80,13 @@ public class AdminRESTController {
 	}
 }
 
-//public ResponseEntity<List<ChatMessage>> getMessages(@PathVariable String userName, Principal principal) {
-////List<ChatMessage> chatMessages = chatMessageRepository.getAllMessages(principal.getName(), userName);
+// public ResponseEntity<List<ChatMessage>> getMessages(@PathVariable String
+// userName, Principal principal) {
+//// List<ChatMessage> chatMessages =
+// chatMessageRepository.getAllMessages(principal.getName(), userName);
 //
-////	return posts.stream()
-////	          .map(post -> convertToDto(post))
-////	          .collect(Collectors.toList());
-//return new ResponseEntity<List<ChatMessage>>(chatMessages, HttpStatus.OK);
-//}
+//// return posts.stream()
+//// .map(post -> convertToDto(post))
+//// .collect(Collectors.toList());
+// return new ResponseEntity<List<ChatMessage>>(chatMessages, HttpStatus.OK);
+// }

chatto/src/main/java/org/ros/chatto/controller/DemoRestController.java

@@ -2,6 +2,7 @@ package org.ros.chatto.controller;
 
 import java.security.Principal;
 import java.util.List;
+import java.util.Optional;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
@@ -34,7 +35,7 @@ import org.springframework.web.servlet.ModelAndView;
 
 @RestController
 @RequestMapping("/api/demo")
-//@CrossOrigin(origins = "*", allowCredentials = "true", allowedHeaders = "*")
+// @CrossOrigin(origins = "*", allowCredentials = "true", allowedHeaders = "*")
 public class DemoRestController {
 
 	@Autowired
@@ -51,6 +52,7 @@ public class DemoRestController {
 	ChatMessageRepository chatMessageRepository;
 	@Autowired
 	private UserService userService;
+
 	@GetMapping("/users")
 	public List<ChatUser> getAllUsers() {
 		return userRepository.findAll();
@@ -62,13 +64,14 @@ public class DemoRestController {
 	}
 
 	@GetMapping("/user_old")
-	public ChatUser getUser() {
+	public Optional<ChatUser> getUser() {
 		return userRepository.findByUserName("hmm");
 	}
 
 	@GetMapping("/user")
-	public ChatUser currentUserName(Principal principal) {
-		ChatUser user = userRepository.findByUserName(principal.getName());
+	public Optional<ChatUser> currentUserName(Principal principal) {
+		Optional<ChatUser> user = userRepository
+				.findByUserName(principal.getName());
 		return user;
 	}
 
@@ -86,14 +89,15 @@ public class DemoRestController {
 	public List<ChatMessage> getAllMessages() {
 		return chatMessageRepository.findAll();
 	}
-	
+
 	@GetMapping("/regular-users")
 	public List<String> getAllRegularUsers() {
 		return userRoleRepository.getAllRegularUser();
 	}
 
 	@PostMapping(value = "/post-message", consumes = { "application/json" })
-	public ResponseEntity<MessageCipher> postMessage(@RequestBody MessageCipher messageCipher) {
+	public ResponseEntity<MessageCipher> postMessage(
+			@RequestBody MessageCipher messageCipher) {
 		System.out.println("Message cipher = " + messageCipher);
 		messageCipherRepository.save(messageCipher);
 		return new ResponseEntity<MessageCipher>(HttpStatus.OK);
@@ -106,17 +110,18 @@ public class DemoRestController {
 	}
 
 	@RequestMapping(value = "perform_logout", method = RequestMethod.POST)
-	public String performLogout(HttpServletRequest request, HttpServletResponse response) {
-		Authentication auth = SecurityContextHolder.getContext().getAuthentication();
+	public String performLogout(HttpServletRequest request,
+			HttpServletResponse response) {
+		Authentication auth = SecurityContextHolder.getContext()
+				.getAuthentication();
 		if (auth != null) {
 			new SecurityContextLogoutHandler().logout(request, response, auth);
 		}
 		return "redirect:/users";
 	}
-	
+
 	@GetMapping(value = "/loggedUsers2")
-	public List<ActiveUserDTO> getOtherActiveUsers(Principal principal)
-	{
+	public List<ActiveUserDTO> getOtherActiveUsers(Principal principal) {
 		return userService.getOtherActiveUsers(principal.getName());
 	}
 }

chatto/src/main/java/org/ros/chatto/logged/LoggedUser.java

@@ -30,9 +30,10 @@ public class LoggedUser implements HttpSessionBindingListener {
 
 		log.debug("Incrementing session count for user {}", user.getUsername());
 
-		UserSession userSession = userService.incrementUserSession(user.getUsername());
+		userService.incrementUserSession(user.getUsername());
 
-		log.trace("Username = {} with sessions = {}", userSession.getUser(), userSession.getNumSessions());
+		// log.trace("Username = {} with sessions = {}", userSession.getUser(),
+		// userSession.getNumSessions());
 	}
 
 	@Override
@@ -41,9 +42,11 @@ public class LoggedUser implements HttpSessionBindingListener {
 
 		log.debug("Decrementing session count for user {}", user.getUsername());
 
-		UserSession userSession = userService.decrementUserSession(user.getUsername());
+		UserSession userSession = userService
+				.decrementUserSession(user.getUsername());
 
-		log.trace("Username = {} with sessions = {}", userSession.getUser(), userSession.getNumSessions());
+		log.trace("Username = {} with sessions = {}", userSession.getUser(),
+				userSession.getNumSessions());
 
 	}
 }

chatto/src/main/java/org/ros/chatto/repository/UserRepository.java

@@ -1,6 +1,7 @@
 package org.ros.chatto.repository;
 
 import java.util.List;
+import java.util.Optional;
 
 import org.ros.chatto.model.ChatUser;
 import org.springframework.data.jpa.repository.JpaRepository;
@@ -8,13 +9,13 @@ import org.springframework.data.jpa.repository.Query;
 import org.springframework.stereotype.Repository;
 
 @Repository
-public interface UserRepository extends JpaRepository<ChatUser, Long>{
+public interface UserRepository extends JpaRepository<ChatUser, Long> {
 	@Query("select cu from ChatUser cu where cu.userName = ?1")
-	public ChatUser findByUserName(String userName);
+	public Optional<ChatUser> findByUserName(String userName);
 
 	@Query("select cu from ChatUser cu join fetch cu.userRoles where cu.userName = ?1")
 	public ChatUser findByUserNameWithRole(String userName);
-	
+
 	@Query("select cu.userName from ChatUser cu where cu.userName != ?1")
 	public List<String> findAllOtherUserNames(String userName);
 }

chatto/src/main/java/org/ros/chatto/security/CustomBasicAuthenticationFilter.java

@@ -1,5 +1,8 @@
 package org.ros.chatto.security;
 
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
 import org.ros.chatto.model.UserToken;
 import org.ros.chatto.service.UserTokenService;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -19,24 +22,27 @@ public class CustomBasicAuthenticationFilter extends BasicAuthenticationFilter {
 	private UserTokenService userTokenService;
 
 	@Autowired
-	public CustomBasicAuthenticationFilter(final AuthenticationManager authenticationManager) {
+	public CustomBasicAuthenticationFilter(
+			final AuthenticationManager authenticationManager) {
 		super(authenticationManager);
 	}
 
 	@Override
-	protected void onSuccessfulAuthentication(final javax.servlet.http.HttpServletRequest request,
-			final javax.servlet.http.HttpServletResponse response, final Authentication authResult) {
+	protected void onSuccessfulAuthentication(final HttpServletRequest request,
+			final HttpServletResponse response,
+			final Authentication authResult) {
 		// Generate Token
 		// Save the token for the logged in user
 		// send token in the response
-		UserToken userToken = userTokenService.getTokenByUserName(authResult.getName());
-		Token token;
+		UserToken userToken = userTokenService
+				.getTokenByUserName(authResult.getName());
 		if (userToken == null) {
-			token = tokenService.allocateToken("");
+			final Token token = tokenService.allocateToken("");
 			userToken = new UserToken();
 			userToken.setTokenContent(token.getKey());
 			userToken.setUserName(authResult.getName());
-			userToken.setRole(authResult.getAuthorities().iterator().next().getAuthority());
+			userToken.setRole(authResult.getAuthorities().iterator().next()
+					.getAuthority());
 			userTokenService.saveToken(userToken);
 			response.setHeader("X-AUTH-TOKEN", token.getKey());
 		} else {

chatto/src/main/java/org/ros/chatto/service/ChatServiceImpl.java

@@ -2,8 +2,10 @@ package org.ros.chatto.service;
 
 import java.util.Date;
 import java.util.List;
+import java.util.Optional;
 import java.util.stream.Collectors;
 
+import org.modelmapper.ModelMapper;
 import org.ros.chatto.dto.ChatMessageDTO;
 import org.ros.chatto.dto.MessageCipherDTO;
 import org.ros.chatto.dto.ReencryptionDTO;
@@ -24,6 +26,7 @@ import lombok.RequiredArgsConstructor;
 @RequiredArgsConstructor
 public class ChatServiceImpl implements ChatService {
 
+	private final ModelMapper modelMapper;
 	private final UserRepository userRepository;
 	private final MessageCipherRepository messageCipherRepository;
 	private final ChatMessageRepository chatMessageRepository;
@@ -32,20 +35,25 @@ public class ChatServiceImpl implements ChatService {
 	public ChatMessageDTO createMessage(final String fromUserName,
 			final String toUserName, final MessageCipherDTO messageCipherDTO) {
 
-		MessageCipher messageCipher = myConversionService
-				.convertToMessageCipher(messageCipherDTO);
-		final ChatUser fromUser = userRepository.findByUserName(fromUserName);
-		final ChatUser toUser = userRepository.findByUserName(toUserName);
-
-		ChatMessage chatMessage = new ChatMessage();
-		messageCipher = messageCipherRepository.save(messageCipher);
-		chatMessage.setMessageCipher(messageCipher);
-		chatMessage.setFromUser(fromUser);
-		chatMessage.setToUser(toUser);
-
-		chatMessage = chatMessageRepository.save(chatMessage);
-		return myConversionService.convertToChatMessageDTO(chatMessage);
-
+		final Optional<ChatUser> fromUser = userRepository
+				.findByUserName(fromUserName);
+		final Optional<ChatUser> toUser = userRepository
+				.findByUserName(toUserName);
+
+		final Optional<ChatMessage> cm = fromUser.flatMap(fu -> {
+			return toUser.map(tu -> {
+				ChatMessage chatMessage = new ChatMessage();
+				MessageCipher messageCipher = myConversionService
+						.convertToMessageCipher(messageCipherDTO);
+				messageCipher = messageCipherRepository.save(messageCipher);
+				chatMessage.setMessageCipher(messageCipher);
+				chatMessage.setFromUser(fu);
+				chatMessage.setToUser(tu);
+				chatMessage = chatMessageRepository.save(chatMessage);
+				return chatMessage;
+			});
+		});
+		return modelMapper.map(cm, ChatMessageDTO.class);
 	}
 
 	@Override

chatto/src/main/java/org/ros/chatto/service/UserService.java

@@ -1,6 +1,7 @@
 package org.ros.chatto.service;
 
 import java.util.List;
+import java.util.Optional;
 import java.util.Set;
 
 import org.ros.chatto.dto.ActiveUserDTO;
@@ -18,7 +19,7 @@ public interface UserService {
 
 	public List<String> getAllRegularUsers();
 
-	public ChatUser getUser(String userName);
+	public Optional<ChatUser> getUser(String userName);
 
 	public Set<Role> getRoles(ChatUser user);
 
@@ -26,7 +27,7 @@ public interface UserService {
 
 	public ChatUser getUserWithRole(String userName);
 
-	public UserSession incrementUserSession(String userName);
+	public void incrementUserSession(String userName);
 
 	public UserSession decrementUserSession(String userName);
 }

chatto/src/main/java/org/ros/chatto/service/UserServiceImpl.java

@@ -6,6 +6,7 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.Set;
 import java.util.stream.Collectors;
 
@@ -49,7 +50,8 @@ public class UserServiceImpl implements UserService {
 	public ChatUser createUser(final UserRegistrationDTO userRegistrationDTO) {
 		final ChatUser user = new ChatUser();
 		user.setUserName(userRegistrationDTO.getUserName());
-		user.setPassword(passwordEncoder.encode(userRegistrationDTO.getPassword()));
+		user.setPassword(
+				passwordEncoder.encode(userRegistrationDTO.getPassword()));
 		final ChatUser changedUser = userRepository.save(user);
 		final UserRole userRole = new UserRole();
 		final Role role = roleRepository.findByName("USER");
@@ -74,8 +76,10 @@ public class UserServiceImpl implements UserService {
 	public List<ActiveUserDTO> getOtherActiveUsers(final String userName) {
 		final List<String> userList = findAllOtherUsers(userName);
 
-		final List<UserSession> userSessionsList = userSessionRepository.findAllUserSessions();
-		final Map<String, UserSession> lastActiveMap = convertToMap(userSessionsList);
+		final List<UserSession> userSessionsList = userSessionRepository
+				.findAllUserSessions();
+		final Map<String, UserSession> lastActiveMap = convertToMap(
+				userSessionsList);
 
 		final List<ActiveUserDTO> activeUserDTOs = new ArrayList<ActiveUserDTO>();
 		userList.forEach(u -> {
@@ -98,11 +102,12 @@ public class UserServiceImpl implements UserService {
 
 	@Transactional(readOnly = true)
 	@Override
-	public ChatUser getUser(final String userName) {
+	public Optional<ChatUser> getUser(final String userName) {
 		return userRepository.findByUserName(userName);
 	}
 
-	private Map<String, UserSession> convertToMap(final List<UserSession> userSessionList) {
+	private Map<String, UserSession> convertToMap(
+			final List<UserSession> userSessionList) {
 		final Map<String, UserSession> userMap = new HashMap<>();
 		userSessionList.forEach(us -> {
 			userMap.put(us.getUser().getUserName(), us);
@@ -117,34 +122,21 @@ public class UserServiceImpl implements UserService {
 		final long hours = duration.toHours();
 		final long minutes = duration.toMinutes();
 		final long days = duration.toDays();
-		// @formatter:off
-		if(minutes < 60) 
-		{
+		if (minutes < 60) {
 			return String.format("%d minutes ago", minutes);
-		}
-		else 
-		{
-			if(hours < 24) 
-			{
+		} else {
+			if (hours < 24) {
 				return String.format("%d hours ago", hours);
-			}
-			else 
-			{
-				if(days < 30)
-				{
+			} else {
+				if (days < 30) {
 					return String.format("%d days ago", days);
-				}
-				else if(days < 366)
-				{
-					return String.format("%d months ago", days/30);
-				}
-				else {
-					return String.format("%d years ago", days/365);
+				} else if (days < 366) {
+					return String.format("%d months ago", days / 30);
+				} else {
+					return String.format("%d years ago", days / 365);
 				}
 			}
 		}
-		// @formatter:on
-
 	}
 
 	@Override
@@ -154,40 +146,45 @@ public class UserServiceImpl implements UserService {
 	}
 
 	@Override
-	public UserSession incrementUserSession(String userName) {
-		ChatUser chatUser = getUser(userName);
-		Instant instant = Instant.now();
-
-		UserSession userSession = userSessionRepository.findByUserName(userName);
+	public void incrementUserSession(final String userName) {
+		final Optional<ChatUser> chatUser = getUser(userName);
+		final Instant instant = Instant.now();
 
-		if (userSession == null) {
-			userSession = new UserSession();
-		}
+		chatUser.ifPresent(cu -> {
+			UserSession userSession = userSessionRepository
+					.findByUserName(userName);
 
-		userSession.setUser(chatUser);
-		userSession.setTimeStamp(instant);
-		userSession.setOnline(true);
-		userSession.setNumSessions(userSession.getNumSessions() + 1);
-		return userSessionRepository.save(userSession);
+			if (userSession == null) {
+				userSession = new UserSession();
+			}
+			userSession.setUser(cu);
+			userSession.setTimeStamp(instant);
+			userSession.setOnline(true);
+			userSession.setNumSessions(userSession.getNumSessions() + 1);
+			userSessionRepository.save(userSession);
+		});
 	}
 
 	@Override
-	public UserSession decrementUserSession(String userName) {
-		UserSession userSession = userSessionRepository.findByUserName(userName);
-		Instant instant = Instant.now();
+	public UserSession decrementUserSession(final String userName) {
+		final UserSession userSession = userSessionRepository
+				.findByUserName(userName);
+		final Instant instant = Instant.now();
 
 		if (userSession == null) {
 			log.error("User session is somehow null for user: " + userName);
-			throw new InternalAuthenticationServiceException("User session not found");
+			throw new InternalAuthenticationServiceException(
+					"User session not found");
 		}
 
-		ChatUser chatUser = userSession.getUser();
+		final ChatUser chatUser = userSession.getUser();
 
 		int numSessions = userSession.getNumSessions();
 
 		if (--numSessions == 0) {
 			log.info("Num sessions is 0 so setting user to offline");
-			log.info("Deleting token and evicting cache for user: " + chatUser.getUserName());
+			log.info("Deleting token and evicting cache for user: "
+					+ chatUser.getUserName());
 			userSession.setOnline(false);
 			userTokenService.deleteToken(chatUser.getUserName());
 			TokenCacheUtil.evictSingleTokenValue(chatUser.getUserName());
@@ -199,7 +196,8 @@ public class UserServiceImpl implements UserService {
 	}
 
 	@Override
-	public Set<Role> getRoles(ChatUser user) {
-		return user.getUserRoles().stream().map(ur -> ur.getRole()).collect(Collectors.toSet());
+	public Set<Role> getRoles(final ChatUser user) {
+		return user.getUserRoles().stream().map(ur -> ur.getRole())
+				.collect(Collectors.toSet());
 	}
 }

chatto/src/main/java/org/ros/chatto/service/UserTokenService.java

@@ -8,15 +8,16 @@ import org.springframework.cache.annotation.Cacheable;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 @Service
 @Transactional
 @Slf4j
 @CacheConfig(cacheNames = "userTokenCache")
+@RequiredArgsConstructor
 public class UserTokenService {
-	@Autowired
-	private TokenRepository tokenRepository;
+	private final TokenRepository tokenRepository;
 
 	@Transactional(readOnly = true)
 	@Cacheable(value = "userTokenCache", key = "#userName", unless = "#result == null")

chatto/src/main/javascript/ts/src/singleton/JsonAPI.ts

@@ -1,39 +1,37 @@
 export namespace JsonAPI {
-    // @ts-ignore: Cannot find name 'hostAddress'.
-    export let principleName: string | null = localStorage.getItem('username');
-    export let contactName: string | null;
-    export let authToken: string | null = localStorage.getItem('authToken');
-    export const ACTIVE_USERS_GET = `/api/chat/get/active-users`;
-    /**
-     * Json API URL for retrieving all messages between two users
-     * 
-     * ### With sprintf
-     * const url = Sprintf(JsonAPI.CHAT_MESSAGES_GET, contactName);
-     * 
-     * @format /api/chat/get/messages/{contactName}
-     * @example /api/chat/get/messages/some-user
-     * 
-     * 
-     * @param contactName
-     * The user whose messages we wish to retrieve.
-     */
-    export const CHAT_MESSAGES_GET = `/api/chat/get/messages/%s`;
-    export const MESSAGE_POST = '/api/chat/post/message';
-    /**
-     * Json API URL for retrieving paginated messages between two users
-     * Page index starts with 0
-     * 
-     * ### With sprintf
-     * const url = Sprintf(JsonAPI.CHAT_MESSAGES_GET, contactName);
-     * 
-     * @example /api/chat/get/messages/some-user?page=0&size=5 will give the first page where each page has size 5
-     * 
-     * 
-     * 
-     * @param contactName the user whose messages we wish to retrieve
-     * @param page denotes the page required
-     * @param size denotes the size of each page
-     */
-    export const CHAT_MESSAGE_PAGE_GET = `/api/chat/get/messages/%s?page=%d&size=%d`;
-    
-}
+  export let principleName: string = localStorage.getItem("username") || "";
+  export let contactName: string = "";
+  export let authToken: string = localStorage.getItem("authToken") || "";
+  export const ACTIVE_USERS_GET = `/api/chat/get/active-users`;
+  /**
+   * Json API URL for retrieving all messages between two users
+   *
+   * ### With sprintf
+   * const url = Sprintf(JsonAPI.CHAT_MESSAGES_GET, contactName);
+   *
+   * @format /api/chat/get/messages/{contactName}
+   * @example /api/chat/get/messages/some-user
+   *
+   *
+   * @param contactName
+   * The user whose messages we wish to retrieve.
+   */
+  export const CHAT_MESSAGES_GET = `/api/chat/get/messages/%s`;
+  export const MESSAGE_POST = "/api/chat/post/message";
+  /**
+   * Json API URL for retrieving paginated messages between two users
+   * Page index starts with 0
+   *
+   * ### With sprintf
+   * const url = Sprintf(JsonAPI.CHAT_MESSAGES_GET, contactName);
+   *
+   * @example /api/chat/get/messages/some-user?page=0&size=5 will give the first page where each page has size 5
+   *
+   *
+   *
+   * @param contactName the user whose messages we wish to retrieve
+   * @param page denotes the page required
+   * @param size denotes the size of each page
+   */
+  export const CHAT_MESSAGE_PAGE_GET = `/api/chat/get/messages/%s?page=%d&size=%d`;
+}

chatto/src/main/javascript/ts/src/viewmodel/ChatMessageViewModel.ts

@@ -1,8 +1,6 @@
 export class ChatMessageViewModel {
-    public toUser: string | undefined;
-    public fromUser: string | undefined;
-    public message!: string;
-    public messageTime!: Date;
-
-    
-}
+  public toUser: string = "";
+  public fromUser: string = "";
+  public message: string = "";
+  public messageTime: Date = new Date();
+}

config/application.properties

@@ -1,23 +1,7 @@
-
-## Spring DATASOURCE (DataSourceAutoConfiguration & DataSourceProperties)
-spring.datasource.url = jdbc:mysql://localhost:3306/chatto_db?useSSL=false
-spring.datasource.username = chatto_user
-spring.datasource.password = password
-spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
-
-## Hibernate Properties
-# The SQL dialect makes Hibernate generate better SQL for the chosen database
-spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5InnoDBDialect
-
-
-# Hibernate ddl auto (create, create-drop, validate, update)
-spring.jpa.hibernate.ddl-auto = validate
-
-logging.level.org.springframework.web=DEBUG
-logging.level.web=DEBUG
-logging.level.org.hibernate.SQL=DEBUG
-logging.level.org.hibernate.type.descriptor.sql.BasicBinder=TRACE
-spring.http.log-request-details=true
-#spring.jackson.date-format=yyyy-MM-d
-spring.jackson.serialization.write-dates-as-timestamps=false
-#spring.mvc.static-path-pattern=/static/**
+## chatto DATASOURCE (DataSourceAutoConfiguration & DataSourceProperties)
+chatto.datasource.url = jdbc:mysql://localhost:3306/chatto_db2?useSSL=false
+chatto.datasource.username = chatto_user
+chatto.datasource.password = password
+chatto.datasource.database-name = chatto_db2
+website-url = 192.168.1.13
+test.bindAddress=192.168.1.106