mnhvg

backend/index.js

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+import express from "express";
+import cors from "cors";
+import Groq from "groq-sdk";
+import multer from "multer";
+import fs from "fs";
+import path from "path";
+import { fileURLToPath } from "url";
+
+const app = express();
+const port = 3001;
+
+// For __dirname in ES module
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+app.use(cors());
+app.use(express.json());
+
+const upload = multer({ dest: "uploads/" });
+
+const groq = new Groq({
+  apiKey: "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",
+});
+
+app.post("/chat", upload.single("image"), async (req, res) => {
+  const { message } = req.body;
+  let imageData = "";
+
+  // Convert image to base64 if available
+  if (req.file) {
+    const filePath = path.join(__dirname, req.file.path);
+    imageData = fs.readFileSync(filePath, { encoding: "base64" });
+    fs.unlinkSync(filePath); // Clean up
+  }
+
+  try {
+    const chatCompletion = await groq.chat.completions.create({
+      model: "meta-llama/llama-4-scout-17b-16e-instruct",
+      messages: [
+        {
+          role: "system",
+          content: "You are a helpful mental health assistant.",
+        },
+        {
+          role: "user",
+          content: imageData
+            ? `Here is an image (base64): ${imageData}. Question: ${message}`
+            : message,
+        },
+      ],
+      temperature: 0.5,
+      max_tokens: 1024,
+    });
+
+    const reply = chatCompletion.choices[0]?.message?.content;
+    res.json({ reply });
+  } catch (err) {
+    console.error("API error:", err.message);
+    res.status(500).json({ reply: "Sorry, something went wrong." });
+  }
+});
+
+app.listen(port, () => {
+  console.log(`Server running on http://localhost:${port}`);
+});