initial

.gitignore

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+node_modules
+.env

.prettierrc

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+{
+  "singleQuote": true,
+  "semi": false,
+  "tabWidth": 2
+}

package.json

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+{
+  "name": "api",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "start": "node dist/index.js",
+    "dev": "nodemon src/index.ts",
+    "codegen": "kysely-codegen --dialect postgres"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "cors": "^2.8.5",
+    "express": "^4.18.2",
+    "kysely": "^0.26.3",
+    "pg": "^8.11.3",
+    "socket.io": "^4.7.2",
+    "ts-node": "^10.9.1"
+  },
+  "devDependencies": {
+    "@types/express": "^4.17.18",
+    "@types/pg": "^8.10.4",
+    "dotenv": "^16.3.1",
+    "kysely-codegen": "^0.10.1",
+    "nodemon": "^3.0.1",
+    "typescript": "^5.2.2",
+    "zod": "^3.22.4"
+  }
+}

src/config/database.ts

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+import { Kysely, PostgresDialect } from 'kysely'
+import { DB } from 'kysely-codegen'
+import { Pool } from 'pg'
+import * as dotenv from 'dotenv'
+
+dotenv.config()
+
+export const db = new Kysely<DB>({
+  dialect: new PostgresDialect({
+    pool: new Pool({
+      connectionString: process.env.DATABASE_URL,
+    }),
+  }),
+  // log(event) {
+  //   if (event.level === 'query') {
+  //     console.log(event.query.sql)
+  //     console.log(event.query.parameters)
+  //   }
+  // },
+})

src/controllers/SocketController.ts

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+import { io } from '../index'
+
+export function startSocket() {
+  io.on('connection', (socket) => {
+    console.log(socket.id)
+
+    socket.on('message', (socket) => {
+      console.log(socket)
+      io.emit('message', 'test')
+    })
+  })
+}

src/index.ts

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+import express, { Express } from 'express'
+import { createServer } from 'http'
+import { Server } from 'socket.io'
+import * as dotenv from 'dotenv'
+import { startSocket } from './controllers/SocketController'
+dotenv.config()
+
+// routers
+
+const app = express()
+const httpServer = createServer(app)
+const io = new Server(httpServer)
+
+app.use(express.urlencoded({ extended: false }))
+app.use(express.json())
+
+app.use('/hello', (req, res) => {
+  res.send('hello')
+})
+
+startSocket()
+
+httpServer.listen(3000, () => console.log('Server is running on port 3000'))
+
+export { io }

tsconfig.json

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+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "target": "esnext",
+    "moduleResolution": "node",
+    "esModuleInterop": true,
+    "sourceMap": true,
+    "outDir": "dist",
+    "allowJs": true,
+    "lib": ["dom", "es6"],
+    "baseUrl": "./src",
+    "paths": {
+      "@/*": [
+        "./*"
+      ]
+    }
+  },
+  "exclude": [
+    "node_modules",
+    "dist"
+  ],
+  "include": [
+    "src/**/*.ts",
+    "tests/**/*.spec.ts"
+  ],
+  "files": [
+    "src/index.ts"
+  ]
+}