feat: create database connection

Author: cgabrieu

.eslintrc.json

@@ -4,7 +4,9 @@
         "node": true
     },
     "extends": [
-        "airbnb-base"
+        "airbnb-base",
+        "prettier",
+        "plugin:import/typescript"
     ],
     "parser": "@typescript-eslint/parser",
     "parserOptions": {
@@ -15,5 +17,7 @@
         "@typescript-eslint"
     ],
     "rules": {
+        "import/extensions": "off",
+        "import/prefer-default-export": "off"
     }
-}
+}

package.json

@@ -4,8 +4,7 @@
   "description": "An api to track Full Stack Overflow Developer Q&A",
   "main": "index.js",
   "scripts": {
-    "start:dev": "NODE_ENV=dev nodemon --watch \"src/**\" --ext \"ts,json\" --exec \"ts-node src/server.ts\"",
-    "dev": "tsc --watch"
+    "start:dev": "NODE_ENV=dev nodemon --watch \"src/**\" --ext \"ts,json\" --exec \"ts-node src/server.ts\""
   },
   "repository": {
     "type": "git",
@@ -37,9 +36,11 @@
     "@typescript-eslint/parser": "^5.6.0",
     "eslint": "^8.4.1",
     "eslint-config-airbnb-base": "^15.0.0",
+    "eslint-config-prettier": "^8.3.0",
     "eslint-plugin-import": "^2.25.3",
     "git-commit-msg-linter": "^3.2.8",
     "nodemon": "^2.0.15",
+    "prettier": "^2.5.1",
     "ts-node": "^10.4.0",
     "typescript": "^4.5.3"
   }

src/connection/database.ts

@@ -0,0 +1,22 @@
+import { Pool, PoolConfig } from 'pg';
+
+let connectionData: PoolConfig = {
+  user: process.env.DB_USER,
+  password: process.env.DB_PASS,
+  port: Number(process.env.DB_PORT),
+  host: process.env.DB_HOST,
+  database: process.env.DB_NAME,
+};
+
+if (process.env.NODE_ENV === 'prod') {
+  connectionData = {
+    connectionString: process.env.DATABASE_URL,
+    ssl: {
+      rejectUnauthorized: false,
+    },
+  };
+}
+
+const connection = new Pool(connectionData);
+
+export default connection;

src/server.ts

@@ -2,5 +2,6 @@ import app from './app';
 import './setup';
 
 app.listen(process.env.PORT, () => {
+  // eslint-disable-next-line no-console
   console.log(`Server is running on port ${process.env.PORT}`);
 });