Wrote services + added db connection to mongoose db. Check back for working + added fixtures file

backend/package.json

 {
-  "name": "backend",
+  "name": "homework",
   "version": "1.0.0",
   "description": "",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
     "dev": "ts-node-dev --respawn --trace-warnings --transpile-only src/index.ts",
-    "seed": "ts-node-dev --trace-warnings --transpile-only src/fixtures.ts"
+    "seed": "ts-node-dev --trace-warnings --transpile-only src/fixtures.ts",
+    "test": "echo \"Error: no test specified\" && exit 1"
   },
   "author": "",
   "license": "ISC",
   "dependencies": {
     "@types/cors": "^2.8.13",
-    "@types/mongoose": "^5.11.97",
+    "@types/jsonwebtoken": "^9.0.1",
     "@types/shortid": "^0.0.29",
     "bcrypt": "^5.1.0",
     "cors": "^2.8.5",
     "dotenv": "^16.0.3",
     "express": "^4.18.2",
     "jsonwebtoken": "^9.0.0",
+    "mongodb": "^5.1.0",
     "mongoose": "^7.0.3",
     "multer": "^1.4.5-lts.1",
-    "shortid": "^2.2.16"
+    "pg": "^8.10.0",
+    "pg-hstore": "^2.3.4",
+    "sequelize": "^6.29.3",
+    "sequelize-typescript": "^2.1.5",
+    "shortid": "^2.2.16",
+    "uuid": "^9.0.0"
   },
   "devDependencies": {
     "@types/bcrypt": "^5.0.0",
     "@types/dotenv": "^8.2.0",
     "@types/express": "^4.17.17",
-    "@types/jsonwebtoken": "^9.0.1",
-    "@types/multer": "^1.4.7"
+    "@types/mongodb": "^4.0.7",
+    "@types/mongoose": "^5.11.97",
+    "@types/multer": "^1.4.7",
+    "@types/uuid": "^9.0.1",
+    "@types/validator": "^13.7.14",
+    "ts-node-dev": "^2.0.0"
   }
 }

backend/src/index.ts

@@ -2,6 +2,7 @@ import express, { Express } from "express";
 import dotenv from 'dotenv';
 import cors from 'cors';
 import { healthCheckController } from "./controllers/healthCheckController";
+import { mongooseDB } from "./repository/mongooseDB";
 
 dotenv.config()
 
@@ -20,8 +21,16 @@ class App {
             this.app.listen(process.env.APP_PORT, () => {
                 console.log(`Server is running on http://localhost:${process.env.APP_PORT}`);
             })
+            await mongooseDB.init()
+            process.on('exit', () => {
+                mongooseDB.close()
+            })
         } catch(err: unknown){
             console.log(err);
         }
     }
-}
+}
\ No newline at end of file
+
+const app = new App()
+
+app.init()
\ No newline at end of file

backend/src/services/photosService.ts

+import IPhoto from "../interfaces/IPhoto";
+import IPhotoDto from "../interfaces/IPhotoDto";
+import IResponse from "../interfaces/IResponse";
+import { MongooseDB, mongooseDB } from "../repository/mongooseDB";
+
+
+export class PhotosService {
+    private repository: MongooseDB
+    constructor(){
+        this.repository = mongooseDB
+    }
+
+    public getAllPhotos = async(): Promise<IResponse<IPhoto[] | null>> => {
+        return await this.repository.getAllPhotos()
+    }
+
+    public deletePhotoById = async (id: string, user: string): Promise<IResponse<IPhoto | null>> => {
+        return await this.repository.deletePhotoById(id, user)
+    }
+
+    public getPhotosByUserId = async(id: string): Promise<IResponse<IPhoto[] | null>> => {
+        return await this.repository.getPhotosByUserId(id)
+    }
+
+    public addPhoto = async(photoDto: IPhotoDto): Promise<IResponse<IPhoto | null>> => {
+        return await this.repository.addPhoto(photoDto)
+    }
+}
+
+export const photosService = new PhotosService()
\ No newline at end of file

backend/src/services/usersService.ts

+import { EStatuses } from "../enum/EStatuses";
+import IPhoto from "../interfaces/IPhoto";
+import IPhotoDto from "../interfaces/IPhotoDto";
+import IResponse from "../interfaces/IResponse";
+import IUserCreateDto from "../interfaces/IUserCreateDto";
+import IUserGetDto from "../interfaces/IUserGetDto";
+import { mongooseDB, MongooseDB } from "../repository/mongooseDB";
+
+export class UsersService {
+    private repository: MongooseDB
+    constructor(){
+        this.repository = mongooseDB
+    }
+
+    public createUser = async (userDto: IUserCreateDto): Promise<IResponse<IUserGetDto | null>> => {
+        return await this.repository.createUser(userDto)
+    }
+
+    public loginUser = async (userDto: IUserCreateDto): Promise<IResponse<IUserGetDto | null>> => {
+        return await this.repository.loginUser(userDto)
+    }
+}
+
+export const usersService = new UsersService()
\ No newline at end of file