add users

.prettierrc

@@ -1,4 +1,11 @@
 {
+  "semi": true,
   "singleQuote": true,
-  "trailingComma": "all"
-}
+  "trailingComma": "all",
+  "printWidth": 100,
+  "tabWidth": 2,
+  "useTabs": false,
+  "bracketSpacing": true,
+  "arrowParens": "avoid",
+  "endOfLine": "auto"
+}

package.json

@@ -20,9 +20,18 @@
     "test:e2e": "jest --config ./test/jest-e2e.json"
   },
   "dependencies": {
+    "@hapi/joi": "^17.1.1",
+    "@neondatabase/serverless": "^1.0.0",
     "@nestjs/common": "^11.0.1",
+    "@nestjs/config": "^4.0.2",
     "@nestjs/core": "^11.0.1",
     "@nestjs/platform-express": "^11.0.1",
+    "@nestjs/typeorm": "^11.0.0",
+    "@types/bcrypt": "^5.0.2",
+    "@types/hapi__joi": "^17.1.15",
+    "bcrypt": "^5.1.1",
+    "joi": "^17.13.3",
+    "pg": "^8.15.6",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.1"
   },
@@ -38,12 +47,12 @@
     "@types/jest": "^29.5.14",
     "@types/node": "^22.10.7",
     "@types/supertest": "^6.0.2",
-    "eslint": "^9.18.0",
-    "eslint-config-prettier": "^10.0.1",
-    "eslint-plugin-prettier": "^5.2.2",
+    "eslint": "^9.26.0",
+    "eslint-config-prettier": "^10.1.5",
+    "eslint-plugin-prettier": "^5.4.0",
     "globals": "^16.0.0",
     "jest": "^29.7.0",
-    "prettier": "^3.4.2",
+    "prettier": "^3.5.3",
     "source-map-support": "^0.5.21",
     "supertest": "^7.0.0",
     "ts-jest": "^29.2.5",

src/app.module.ts

@@ -1,9 +1,29 @@
 import { Module } from '@nestjs/common';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import { ConfigModule, ConfigService } from '@nestjs/config';
 
 @Module({
-  imports: [],
+  imports: [
+    TypeOrmModule.forRootAsync({
+      imports: [ConfigModule],
+      inject: [ConfigService],
+      useFactory: (configService: ConfigService) => ({
+        type: 'postgres',
+        host: configService.get<string>('POSTGRES_HOST'),
+        port: parseInt(configService.get<string>('POSTGRES_PORT', '5432'), 10),
+        username: configService.get<string>('POSTGRES_USER'),
+        password: configService.get<string>('POSTGRES_PASSWORD'),
+        database: configService.get<string>('POSTGRES_DB'),
+        ssl: {
+          rejectUnauthorized: false, // Needed for Neon and similar managed DBs
+        },
+        synchronize: true, // Disable in production
+      }),
+    }),
+    ConfigModule.forRoot(),
+  ],
   controllers: [AppController],
   providers: [AppService],
 })

src/users/dto/createUser.dto.ts

@@ -0,0 +1,7 @@
+export class CreateUserDto {
+  email: string;
+  name: string;
+  password: string;
+}
+
+export default CreateUserDto;

src/users/user.entity.ts

@@ -0,0 +1,18 @@
+import { Column, Entity, PrimaryGeneratedColumn } from 'typeorm';
+
+@Entity()
+class User {
+  @PrimaryGeneratedColumn()
+  public id?: number;
+
+  @Column({ unique: true })
+  public email: string;
+
+  @Column()
+  public name: string;
+
+  @Column()
+  public password: string;
+}
+
+export default User;

src/users/user.module.ts

@@ -0,0 +1,11 @@
+import { Module } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import User from './user.entity';
+import { UsersService } from './user.service';
+
+@Module({
+  imports: [TypeOrmModule.forFeature([User])],
+  providers: [UsersService],
+  exports: [UsersService],
+})
+export class UsersModule {}

src/users/user.service.ts

@@ -0,0 +1,30 @@
+import { HttpException, HttpStatus, Injectable } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { Repository } from 'typeorm';
+import User from './user.entity';
+import CreateUserDto from './dto/createUser.dto';
+
+@Injectable()
+export class UsersService {
+  constructor(
+    @InjectRepository(User)
+    private usersRepository: Repository<User>,
+  ) {}
+
+  async getByEmail(email: string) {
+    const user = await this.usersRepository.findOne({ where: { email } });
+    if (user) {
+      return user;
+    }
+    throw new HttpException(
+      'User with this email does not exist',
+      HttpStatus.NOT_FOUND,
+    );
+  }
+
+  async create(userData: CreateUserDto) {
+    const newUser = this.usersRepository.create(userData);
+    await this.usersRepository.save(newUser);
+    return newUser;
+  }
+}

tsconfig.json

@@ -12,10 +12,11 @@
     "baseUrl": "./",
     "incremental": true,
     "skipLibCheck": true,
-    "strictNullChecks": true,
-    "forceConsistentCasingInFileNames": true,
+    "strictNullChecks": false,
     "noImplicitAny": false,
     "strictBindCallApply": false,
-    "noFallthroughCasesInSwitch": false
+    "forceConsistentCasingInFileNames": false,
+    "noFallthroughCasesInSwitch": false,
+    "lib": ["dom"] // dom.value is required for the browser
   }
-}
+}