diff --git a/src/game/game.service.ts b/src/game/game.service.ts
index ea11a669de95f43f89f8b3a7f798358e63421bbe..83760b1f65ccc3a108a620a2539c0ccf137acde1 100644
--- a/src/game/game.service.ts
+++ b/src/game/game.service.ts
@@ -38,98 +38,88 @@ export class GameService {
 
   // create a new game
   async createNewGame(personId: PersonEntity, gameData: GameDTO) {
-    try {
-      // checks if a game with the same name exists already
-      const { name } = gameData;
-      if (await this.gameRepository.findOne({ where: { name } })) {
-        throw new HttpException('Game already exists', HttpStatus.BAD_REQUEST);
-      }
-      // else add the game to the database
-      const game = await this.gameRepository.create({
-        ...gameData,
-        factions: gameData.factions,
-      });
-      await this.gameRepository.insert(game);
-      const gamePerson = await this.game_PersonRepository.create({
-        faction: null,
-        game: game,
-        person: personId,
-      });
-      gamePerson['role'] = 'admin';
-      await this.game_PersonRepository.insert(gamePerson);
-      return {
-        message: 'New game added',
-      };
-    } catch (error) {
-      return error.message;
+    // checks if a game with the same name exists already
+    const { name } = gameData;
+    if (await this.gameRepository.findOne({ where: { name } })) {
+      throw new HttpException('Game already exists', HttpStatus.BAD_REQUEST);
     }
+    // else add the game to the database
+    const game = await this.gameRepository.create({
+      ...gameData,
+      factions: gameData.factions,
+    });
+    await this.gameRepository.insert(game);
+    const gamePerson = await this.game_PersonRepository.create({
+      faction: null,
+      game: game,
+      person: personId,
+    });
+    gamePerson['role'] = 'admin';
+    await this.game_PersonRepository.insert(gamePerson);
+    return {
+      message: 'New game added',
+    };
   }
 
   // edit already created game
   async editGame(id: string, gameData: GameDTO) {
-    try {
-      // checks if a game with the same name exists already
-      const { name } = gameData;
-      if (await this.gameRepository.findOne({ name: name, id: Not(id) })) {
-        throw new HttpException('Game already exists', HttpStatus.BAD_REQUEST);
-      }
-      // update game entry in db
-      const updatedGame = await this.gameRepository.create({
-        ...gameData,
-        factions: null,
-        objective_points: null,
+    // checks if a game with the same name exists already
+    const { name } = gameData;
+    if (await this.gameRepository.findOne({ name: name, id: Not(id) })) {
+      throw new HttpException('Game already exists', HttpStatus.BAD_REQUEST);
+    }
+    // update game entry in db
+    const updatedGame = await this.gameRepository.create({
+      ...gameData,
+      factions: null,
+      objective_points: null,
+    });
+    updatedGame['id'] = id;
+    const gameId = await this.gameRepository.save(updatedGame);
+
+    // get all the factions that are associated with the game to deny duplicate entries
+    const factions = await this.factionRepository.find(gameId);
+    const factionNames = factions.map(({ factionName }) => factionName);
+    // add the factions to db
+    if (gameData.factions) {
+      gameData.factions.map(async faction => {
+        if (!Object.values(factionNames).includes(faction.factionName)) {
+          let name = await this.factionRepository.create({
+            ...faction,
+            gameId: gameId,
+          });
+          await this.factionRepository.insert(name);
+        }
       });
-      updatedGame['id'] = id;
-      const gameId = await this.gameRepository.save(updatedGame);
-
-      // get all the factions that are associated with the game to deny duplicate entries
-      const factions = await this.factionRepository.find(gameId);
-      const factionNames = factions.map(({ factionName }) => factionName);
-      // add the factions to db
-      if (gameData.factions) {
-        gameData.factions.map(async faction => {
-          if (!Object.values(factionNames).includes(faction.factionName)) {
-            let name = await this.factionRepository.create({
-              ...faction,
-              gameId: gameId,
-            });
-            await this.factionRepository.insert(name);
-          }
-        });
-      }
+    }
 
-      // get old flagboxes to deny duplicate entries
-      const flagboxes = await this.objectivePointRepository.find({
-        game: gameId,
+    // get old flagboxes to deny duplicate entries
+    const flagboxes = await this.objectivePointRepository.find({
+      game: gameId,
+    });
+    const flagboxIds = flagboxes.map(
+      ({ objectivePointDescription }) => objectivePointDescription,
+    );
+    // insert the flagboxes to db
+    if (gameData.objective_points) {
+      gameData.objective_points.map(async flagbox => {
+        if (
+          !Object.values(flagboxIds).includes(flagbox.objectivePointDescription)
+        ) {
+          let newFlagbox = await this.objectivePointRepository.create({
+            ...flagbox,
+            game: gameId,
+          });
+          await this.objectivePointRepository.insert(newFlagbox);
+        }
       });
-      const flagboxIds = flagboxes.map(
-        ({ objectivePointDescription }) => objectivePointDescription,
-      );
-      // insert the flagboxes to db
-      if (gameData.objective_points) {
-        gameData.objective_points.map(async flagbox => {
-          if (
-            !Object.values(flagboxIds).includes(
-              flagbox.objectivePointDescription,
-            )
-          ) {
-            let newFlagbox = await this.objectivePointRepository.create({
-              ...flagbox,
-              game: gameId,
-            });
-            await this.objectivePointRepository.insert(newFlagbox);
-          }
-        });
-      }
+    }
 
-      // TO DO: ADD FLAGBOX LOCATION TO MAPDRAWING ENTITY
+    // TO DO: ADD FLAGBOX LOCATION TO MAPDRAWING ENTITY
 
-      return {
-        message: 'Game updated',
-      };
-    } catch (error) {
-      return error;
-    }
+    return {
+      message: 'Game updated',
+    };
   }
 
   async deleteGame(id) {
@@ -142,87 +132,71 @@ export class GameService {
 
   // checks the password, creates an entry in GamePerson table with associated role&faction
   async createGroup(person, gameId, groupData) {
-    try {
-      // check if the person already is in a group in this game
-      const checkDuplicate = await this.game_PersonRepository.findOne({
-        person: person,
-      });
-      if (checkDuplicate) {
-        throw new HttpException(
-          'You already belong to a group!',
-          HttpStatus.BAD_REQUEST,
-        );
-      }
-
-      // create a group entry and insert it to db
-      const group = await this.game_GroupRepository.create({
-        ...groupData,
-        game: gameId,
-      });
-      const gameGroup = await this.game_GroupRepository.insert(group);
+    // check if the person already is in a group in this game
+    const checkDuplicate = await this.game_PersonRepository.findOne({
+      person: person,
+    });
+    if (checkDuplicate) {
+      throw new HttpException(
+        'You already belong to a group!',
+        HttpStatus.BAD_REQUEST,
+      );
+    }
 
-      // create game_Person entry and insert it to db
-      const gamePerson = await this.game_PersonRepository.create({
-        role: 'soldier',
-        faction: null,
-        game: gameId,
-        person: person,
-        leaderGroup: gameGroup.identifiers[0]['id'],
-        group: gameGroup.identifiers[0]['id'],
-      });
-      await this.game_PersonRepository.insert(gamePerson);
+    // create a group entry and insert it to db
+    const group = await this.game_GroupRepository.create({
+      ...groupData,
+      game: gameId,
+    });
+    const gameGroup = await this.game_GroupRepository.insert(group);
+
+    // create game_Person entry and insert it to db
+    const gamePerson = await this.game_PersonRepository.create({
+      role: 'soldier',
+      faction: null,
+      game: gameId,
+      person: person,
+      leaderGroup: gameGroup.identifiers[0]['id'],
+      group: gameGroup.identifiers[0]['id'],
+    });
+    await this.game_PersonRepository.insert(gamePerson);
 
-      return {
-        message: 'created new group',
-      };
-    } catch (e) {
-      return e;
-    }
+    return {
+      message: 'created new group',
+    };
   }
 
   async showGroups() {
-    try {
-      return await this.game_GroupRepository.find({
-        relations: ['leader', 'players', 'game'],
-      });
-    } catch (e) {
-      return e;
-    }
+    return await this.game_GroupRepository.find({
+      relations: ['leader', 'players', 'game'],
+    });
   }
 
   async joinGroup(person, groupId) {
-    try {
-      const gameData = await this.game_GroupRepository.findOne({
-        where: { id: groupId },
-        relations: ['players', 'game'],
-      });
-      const gamePerson = await this.game_PersonRepository.create({
-        role: 'soldier',
-        faction: null,
-        game: gameData.game,
-        person: person,
-        leaderGroup: null,
-        group: groupId,
-      });
-      await this.game_PersonRepository.insert(gamePerson);
-      return {
-        message: 'Joined group',
-      };
-    } catch (e) {
-      return e;
-    }
+    const gameData = await this.game_GroupRepository.findOne({
+      where: { id: groupId },
+      relations: ['players', 'game'],
+    });
+    const gamePerson = await this.game_PersonRepository.create({
+      role: 'soldier',
+      faction: null,
+      game: gameData.game,
+      person: person,
+      leaderGroup: null,
+      group: groupId,
+    });
+    await this.game_PersonRepository.insert(gamePerson);
+    return {
+      message: 'Joined group',
+    };
   }
 
   // returns name and id of each game
   async listGames() {
-    try {
-      const games = await this.gameRepository.find();
-      return games.map(game => {
-        return game.gameObject();
-      });
-    } catch (error) {
-      return error;
-    }
+    const games = await this.gameRepository.find();
+    return games.map(game => {
+      return game.gameObject();
+    });
   }
 
   // returns information about a game identified by id
diff --git a/src/user/user.service.ts b/src/user/user.service.ts
index 572e4bddc53145692ee3f6b2aed4daf323c859a0..d491865f5177d2f6bbaab607da0c2a1a51711a48 100644
--- a/src/user/user.service.ts
+++ b/src/user/user.service.ts
@@ -1,6 +1,6 @@
 import { Injectable, HttpException, HttpStatus } from '@nestjs/common';
-import { Repository } from "typeorm";
-import { InjectRepository } from "@nestjs/typeorm";
+import { Repository } from 'typeorm';
+import { InjectRepository } from '@nestjs/typeorm';
 
 import { PersonEntity } from './user.entity';
 import { UserDTO } from './user.dto';
@@ -9,56 +9,51 @@ import { GameDTO } from '../game/game.dto';
 
 @Injectable()
 export class UserService {
-    constructor(
-        @InjectRepository(PersonEntity)
-        private userRepository: Repository<PersonEntity>,
-        @InjectRepository(GameEntity)
-        private gameRepository: Repository<GameEntity>
-    ) { }
+  constructor(
+    @InjectRepository(PersonEntity)
+    private userRepository: Repository<PersonEntity>,
+    @InjectRepository(GameEntity)
+    private gameRepository: Repository<GameEntity>,
+  ) {}
 
-    async register(data: UserDTO) {
-        const { name } = data;
-        let user = await this.userRepository.findOne({ where: { name } });
-        if (user) {
-            throw new HttpException('User already exists', HttpStatus.BAD_REQUEST);
-        }
-        user = await this.userRepository.create(data);
-        await this.userRepository.save(user);
-        return user.tokenObject();
+  async register(data: UserDTO) {
+    const { name } = data;
+    let user = await this.userRepository.findOne({ where: { name } });
+    if (user) {
+      throw new HttpException('User already exists', HttpStatus.BAD_REQUEST);
     }
+    user = await this.userRepository.create(data);
+    await this.userRepository.save(user);
+    return user.tokenObject();
+  }
 
-    async login(data: UserDTO) {
-        try {
-            const { name, password } = data;
-            const user = await this.userRepository.findOne({ where: { name } });
-            if (!user || !(await user.comparePassword(password))) {
-                throw new HttpException('invalid password', HttpStatus.BAD_REQUEST);
-            }
-            return user.tokenObject();
-        } catch (error) {
-            throw new HttpException(error.message, HttpStatus.BAD_REQUEST);
-        }
+  async login(data: UserDTO) {
+    const { name, password } = data;
+    const user = await this.userRepository.findOne({ where: { name } });
+    if (!user || !(await user.comparePassword(password))) {
+      throw new HttpException('invalid password', HttpStatus.BAD_REQUEST);
     }
+    return user.tokenObject();
+  }
 
-    // liitytään peliin
-    async joinGame(game: GameDTO, data: UserDTO) {
-        try {
-            // etsi peli valinnan mukaan ja otetaan käyttäjän rooli kyseisestä pelistä talteen
-            const role = await this.gameRepository.findOne();
-            return role;
-        } catch (error) {
-            return error.message;
-        }
+  // liitytään peliin
+  async joinGame(game: GameDTO, data: UserDTO) {
+    try {
+      // etsi peli valinnan mukaan ja otetaan käyttäjän rooli kyseisestä pelistä talteen
+      const role = await this.gameRepository.findOne();
+      return role;
+    } catch (error) {
+      return error.message;
     }
+  }
 
-    // liitytään factionii
-    async joinFaction(game: GameDTO, data: UserDTO): Promise<boolean> {
-        try {
-            // tarkistetaan factionin salasana
-            return true;
-        } catch (error) {
-            return error;
-        }
+  // liitytään factionii
+  async joinFaction(game: GameDTO, data: UserDTO): Promise<boolean> {
+    try {
+      // tarkistetaan factionin salasana
+      return true;
+    } catch (error) {
+      return error;
     }
-
+  }
 }