put notes/70559e09-646a-45b8-8600-0c78a9fc75cb.json

notes/70559e09-646a-45b8-8600-0c78a9fc75cb.json

@@ -0,0 +1,8 @@
+{
+  "id": "70559e09-646a-45b8-8600-0c78a9fc75cb",
+  "title": "Untitled",
+  "content": "import express from 'express';\nimport multer from 'multer';\nimport Busboy from 'busboy';\nimport dotenv from 'dotenv';\nimport { commit } from '@huggingface/hub';\nimport fs from 'fs-extra';\nimport path from 'path';\nimport { fileURLToPath } from 'url';\n\ndotenv.config();\nconst app = express();\nconst PORT = process.env.PORT || 3000;\n\n// --- CẤU HÌNH PATH ---\nconst __filename = fileURLToPath(import.meta.url);\nconst __dirname = path.dirname(__filename);\nconst TEMP_DIR = path.join(__dirname, 'temp_uploads');\nconst PUBLIC_DIR = path.join(__dirname, 'public'); // Đường dẫn tới thư mục Frontend\n\n// Tạo thư mục tạm nếu chưa có\nfs.ensureDirSync(TEMP_DIR);\n\n// --- QUAN TRỌNG: CẤU HÌNH PHỤC VỤ FILE TĨNH ---\n// Khi user vào http://localhost:3000, express sẽ trả về index.html trong public\napp.use(express.static(PUBLIC_DIR));\n\n// --- HÀM HELPER: UPLOAD LÊN HF ---\nasync function uploadToHuggingFace(filesData, methodLabel) {\n    const operations = filesData.map(file => {\n        const fileBuffer = fs.readFileSync(file.path);\n        return {\n            operation: \"addOrUpdate\",\n            path: `uploads/${file.originalName}`,\n            content: new Blob([fileBuffer])\n        };\n    });\n\n    console.log(`🚀 [${methodLabel}] Đang commit ${filesData.length} file lên HF...`);\n\n    const result = await commit({\n        repo: {\n  type: \"dataset\",\n  name: process.env.HF_REPO_ID\n        },\n          credentials: { accessToken: process.env.HF_TOKEN },\n        title: `Fullstack Upload via ${methodLabel}: ${new Date().toLocaleString()}`,\n        operations: operations,\n    });\n\n    // Dọn dẹp file rác\n    filesData.forEach(f => {\n        if (fs.existsSync(f.path)) fs.unlinkSync(f.path);\n    });\n\n    return result.commitUrl;\n}\n\n// --- API 1: MULTER (NORMAL MODE) ---\nconst multerStorage = multer.diskStorage({\n    destination: (req, file, cb) => cb(null, TEMP_DIR),\n    filename: (req, file, cb) => cb(null, `multer-${Date.now()}-${file.originalname}`)\n});\nconst uploadMulter = multer({ storage: multerStorage });\n\napp.post('/api/upload-multer', uploadMulter.array('files'), async (req, res) => {\n    try {\n        if (!req.files || req.files.length === 0) return res.status(400).json({ error: \"Chưa chọn file\" });\n\n        const filesData = req.files.map(f => ({\n            path: f.path,\n            originalName: f.originalname\n        }));\n\n        const commitUrl = await uploadToHuggingFace(filesData, \"Multer\");\n        res.json({ success: true, mode: \"Multer\", commitUrl });\n    } catch (error) {\n        console.error(\"Lỗi Multer:\", error);\n        res.status(500).json({ error: error.message });\n    }\n});\n\n// --- API 2: BUSBOY (STREAM MODE - CHO FILE NẶNG) ---\napp.post('/api/upload-stream', (req, res) => {\n    const busboy = Busboy({ headers: req.headers });\n    const writePromises = [];\n    const filesData = [];\n    const requestId = Date.now();\n\n    busboy.on('file', (fieldname, fileStream, info) => {\n        const savePath = path.join(TEMP_DIR, `stream-${requestId}-${info.filename}`);\n        const writeStream = fs.createWriteStream(savePath);\n        fileStream.pipe(writeStream);\n\n        const p = new Promise((resolve, reject) => {\n            writeStream.on('finish', () => {\n                filesData.push({ path: savePath, originalName: info.filename });\n                resolve();\n            });\n            writeStream.on('error', reject);\n        });\n        writePromises.push(p);\n    });\n\n    busboy.on('finish', async () => {\n        try {\n            await Promise.all(writePromises);\n            if (filesData.length === 0) return res.status(400).json({ error: \"Chưa chọn file\" });\n\n            const commitUrl = await uploadToHuggingFace(filesData, \"Stream\");\n            res.json({ success: true, mode: \"Stream\", commitUrl });\n        } catch (error) {\n            console.error(\"Lỗi Stream:\", error);\n            filesData.forEach(f => fs.removeSync(f.path));\n            res.status(500).json({ error: error.message });\n        }\n    });\n\n    req.pipe(busboy);\n});\n\n// --- START SERVER ---\napp.listen(PORT, () => {\n    console.log(`✅ App Fullstack đang chạy tại http://localhost:${PORT}`);\n});\n",
+  "language": "javascript",
+  "createdAt": 1763708878742,
+  "updatedAt": 1763708878742
+}