[#7] feat: add user repository

backend/user-service/src/models/user.repository.ts

@@ -0,0 +1,32 @@
+import { CreateUserDto } from '../types/CreateUserDto'
+import { IUser } from '../types/IUser'
+import { UserDto } from '../types/UserDto'
+import userModel from './user.model'
+
+export async function findAllUsers(): Promise<IUser[]> {
+    return userModel.find()
+}
+
+export async function findOneUserById(id: string): Promise<IUser | null> {
+    return userModel.findById(id)
+}
+
+export async function findOneUserByUsername(username: string): Promise<IUser | null> {
+    return userModel.findOne({ username })
+}
+
+export async function findOneUserByEmail(email: string): Promise<IUser | null> {
+    return userModel.findOne({ email })
+}
+
+export async function createUser(dto: CreateUserDto): Promise<IUser> {
+    return userModel.create(dto)
+}
+
+export async function updateUser(id: string, dto: UserDto): Promise<IUser | null> {
+    return userModel.findByIdAndUpdate(id, dto, { new: true })
+}
+
+export async function deleteUser(id: string): Promise<void> {
+    await userModel.findByIdAndDelete(id)
+}

backend/user-service/src/server.ts

@@ -1,5 +1,6 @@
 import 'dotenv/config'
 import http, { Server } from 'http'
+import { connect } from 'mongoose'
 import Winston, { Logger } from 'winston'
 import index from './index'
 
@@ -16,9 +17,22 @@ export const logger: Logger = Winston.createLogger({
 })
 
 const port: string = process.env.PORT ?? '3000'
+const dbUrl: string | undefined = process.env.DB_URL
+if (!dbUrl) {
+    logger.error(`[Init] DB_URL is not set`)
+    process.exit(1)
+}
 
 const server: Server = http.createServer(index)
 
+connect(dbUrl)
+    .then(() => {
+        logger.info(`[Init] Connected to MongoDB`)
+    })
+    .catch((error: Error) => {
+        logger.error(`[Init] ${error.message}`)
+    })
+
 server.listen(port, async () => {
     logger.info(`[Init] Server is listening on port ${port}`)
 })