Update space

.dockerignore

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+node_modules
+npm-debug.log
+.env

Dockerfile

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+# Use official Node.js image
+FROM node:18-alpine
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies
+RUN npm install
+
+# Copy source files
+COPY . .
+
+# Expose port
+EXPOSE ${PORT}
+
+# Start the app
+CMD ["npm", "start", "node src/app.js"]

package.json

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+{
+  "name": "openai-express-api",
+  "version": "1.0.0",
+  "description": "Express API for OpenAI with Docker",
+  "main": "src/app.js",
+  "scripts": {
+    "start": "node src/app.js",
+    "dev": "nodemon src/app.js"
+  },
+  "dependencies": {
+    "dotenv": "^16.4.1",
+    "express": "^4.18.2",
+    "openai": "^4.28.0"
+  },
+  "devDependencies": {
+    "nodemon": "^3.0.3"
+  }
+}

src/app.js

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+import express from 'express';
+import dotenv from 'dotenv';
+import chatRoutes from './routes/chat.js';
+
+dotenv.config();
+
+const app = express();
+const port = process.env.PORT || 3000;
+
+// Middleware
+app.use(express.json());
+
+// Routes
+app.use('/api/chat', chatRoutes);
+
+// Health check
+app.get('/', (req, res) => {
+  res.status(200).json({ status: 'OK', message: 'API is running' });
+});
+
+// Start server
+app.listen(port, () => {
+  console.log(`Server running on port ${port}`);
+});

src/controllers/chatController.js

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+import { OpenAI } from "openai";
+
+const client = new OpenAI({
+  baseURL: "https://router.huggingface.co/novita/v3/openai",
+  apiKey: process.env.NOVITA_API_KEY,
+});
+
+export const chatCompletion = async (req, res) => {
+  try {
+    const { messages } = req.body;
+
+    // Default system message if not provided
+    if (!messages.some(m => m.role === 'system')) {
+      messages.unshift({
+        role: 'system',
+        content: 'Anda adalah asisten AI yang ramah, baik hati, dan selalu membantu. Gunakan bahasa Indonesia yang santun dan mudah dimengerti.'
+      });
+    }
+
+    const stream = await client.chat.completions.create({
+      model: process.env.MODEL,
+      messages,
+      stream: true,
+    });
+
+    res.setHeader('Content-Type', 'text/plain');
+
+    for await (const chunk of stream) {
+      const content = chunk.choices[0]?.delta?.content || '';
+      res.write(content);
+    }
+
+    res.end();
+  } catch (error) {
+    console.error('Error:', error);
+    res.status(500).json({ error: 'Internal server error' });
+  }
+};

src/routes/chat.js

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+import express from 'express';
+import { chatCompletion } from '../controllers/chatController.js';
+
+const router = express.Router();
+
+router.post('/', chatCompletion);
+
+export default router;