database connection

package-lock.json

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+      "integrity": "sha512-42AtmgqjV+X1VpdOfyTGOYRi0/zsoLqtXQckTmqTeybT+BDIbM/Guxo7x3pE2vtpr1ok6xRqM9OpBe+Jyoqyww==",
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^6.2.1",
+        "string-width": "^7.0.0",
+        "strip-ansi": "^7.1.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
+      }
+    },
+    "node_modules/typeorm/node_modules/yargs": {
+      "version": "18.0.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-18.0.0.tgz",
+      "integrity": "sha512-4UEqdc2RYGHZc7Doyqkrqiln3p9X2DZVxaGbwhn2pi7MrRagKaOcIKe8L3OxYcbhXLgLFUS3zAYuQjKBQgmuNg==",
+      "license": "MIT",
+      "dependencies": {
+        "cliui": "^9.0.1",
+        "escalade": "^3.1.1",
+        "get-caller-file": "^2.0.5",
+        "string-width": "^7.2.0",
+        "y18n": "^5.0.5",
+        "yargs-parser": "^22.0.0"
+      },
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=23"
+      }
+    },
+    "node_modules/typeorm/node_modules/yargs-parser": {
+      "version": "22.0.0",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-22.0.0.tgz",
+      "integrity": "sha512-rwu/ClNdSMpkSrUb+d6BRsSkLUq1fmfsY6TOpYzTwvwkg1/NRG85KBy3kq++A8LKQwX6lsu+aWad+2khvuXrqw==",
+      "license": "ISC",
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=23"
+      }
+    },
     "node_modules/typescript": {
       "version": "5.9.3",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
-      "dev": true,
+      "devOptional": true,
       "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",
@@ -9509,7 +9992,7 @@
       "version": "7.18.2",
       "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.18.2.tgz",
       "integrity": "sha512-AsuCzffGHJybSaRrmr5eHr81mwJU3kjw6M+uprWvCXiNeN9SOGwQ3Jn8jb8m3Z6izVgknn1R0FTCEAP2QrLY/w==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT"
     },
     "node_modules/universalify": {
@@ -9620,7 +10103,7 @@
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/v8-compile-cache-lib/-/v8-compile-cache-lib-3.0.1.tgz",
       "integrity": "sha512-wa7YjyUGfNZngI/vtK0UHAN+lgDCxBPCylVXGp0zu59Fz5aiGtNXaq3DhIov063MorB+VfufLh3JlF2KdTK3xg==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT"
     },
     "node_modules/v8-to-istanbul": {
@@ -9638,6 +10121,15 @@
         "node": ">=10.12.0"
       }
     },
+    "node_modules/validator": {
+      "version": "13.15.35",
+      "resolved": "https://registry.npmjs.org/validator/-/validator-13.15.35.tgz",
+      "integrity": "sha512-TQ5pAGhd5whStmqWvYF4OjQROlmv9SMFVt37qoCBdqRffuuklWYQlCNnEs2ZaIBD1kZRNnikiZOS1eqgkar0iw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
     "node_modules/vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
@@ -9941,11 +10433,19 @@
         "node": "^14.17.0 || ^16.13.0 || >=18.0.0"
       }
     },
+    "node_modules/xtend": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.4"
+      }
+    },
     "node_modules/y18n": {
       "version": "5.0.8",
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
       "integrity": "sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA==",
-      "dev": true,
       "license": "ISC",
       "engines": {
         "node": ">=10"
@@ -9991,7 +10491,7 @@
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz",
       "integrity": "sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "engines": {
         "node": ">=6"

package.json

@@ -21,10 +21,16 @@
   },
   "dependencies": {
     "@nestjs/common": "^11.0.1",
+    "@nestjs/config": "^4.0.4",
     "@nestjs/core": "^11.0.1",
     "@nestjs/platform-express": "^11.0.1",
+    "@nestjs/typeorm": "^11.0.2",
+    "class-transformer": "^0.5.1",
+    "class-validator": "^0.15.1",
+    "pg": "^8.22.0",
     "reflect-metadata": "^0.2.2",
-    "rxjs": "^7.8.1"
+    "rxjs": "^7.8.1",
+    "typeorm": "^1.0.0"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3.2.0",

src/app.module.ts

@@ -1,9 +1,21 @@
 import { Module } from '@nestjs/common';
+import { ConfigModule } from '@nestjs/config';
+import { TypeOrmModule } from '@nestjs/typeorm';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
 
 @Module({
-  imports: [],
+  imports: [
+    ConfigModule.forRoot({ isGlobal: true }),
+    TypeOrmModule.forRoot({
+      type: 'postgres',
+      host: process.env.DB_HOST,
+      port: parseInt(process.env.DB_PORT as string),
+      username: process.env.DB_USERNAME,
+      password: process.env.DB_PASSWORD,
+      database: process.env.DB_NAME,
+    }),
+  ],
   controllers: [AppController],
   providers: [AppService],
 })

src/main.ts

@@ -1,8 +1,19 @@
+import { ValidationPipe } from '@nestjs/common';
 import { NestFactory } from '@nestjs/core';
 import { AppModule } from './app.module';
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule);
+
+  // Global validation pipe
+  app.useGlobalPipes(new ValidationPipe());
+
+  // Global prefix
+  app.setGlobalPrefix('api');
+
+  // Cors
+  app.enableCors();
+
   await app.listen(process.env.PORT ?? 3000);
 }
 bootstrap();