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server.js
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server.js
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const express = require("express");
const multer = require("multer");
const axios = require("axios");
require("dotenv").config();
const { MongoClient } = require("mongodb");
const app = express();
const storage = multer.memoryStorage();
const upload = multer({ storage: storage });
const mongoUrl = "mongodb://localhost:27017";
const dbName = "cars";
const customVisionEndpoint = process.env.PREDICTION_ENDPOINT;
const customVisionKey = process.env.PREDICTION_KEY;
app.use((req, res, next) => {
res.setHeader("Access-Control-Allow-Origin", "*");
res.setHeader("Access-Control-Allow-Methods", "GET, POST");
next();
});
app.post("/upload", upload.single("carImage"), async (req, res) => {
try {
if (!req.file) {
return res.status(400).json({ error: "No file uploaded" });
}
const customVisionResponse = await axios.post(customVisionEndpoint, req.file.buffer, {
headers: {
"Prediction-Key": customVisionKey,
"Content-Type": "application/octet-stream",
},
});
const carType = customVisionResponse.data.predictions[0].tagName;
const client = new MongoClient(mongoUrl, { useUnifiedTopology: true });
await client.connect();
const db = client.db(dbName);
const carsCollection = db.collection("cars");
const matchingCars = await carsCollection.find({ type: carType }).toArray();
client.close();
res.json({ carType, cars: matchingCars });
} catch (error) {
console.error(error);
res.status(500).json({ error: "Internal server error" });
}
});
const port = process.env.PORT;
app.listen(port, () => {
console.log(`Server is running on port ${port}`);
});