Files overview

import multer from 'multer';

const upload = multer({ storage: multer.memoryStorage() });

app.post(
  '/analyse-csv',
  walletMiddleware({ walletId: 'byw_clx1abc123' }),
  payMiddleware({ price: '0.05', description: 'CSV analysis' }),
  vaultMiddleware(),
  upload.single('file'),
  async (req, res) => {
    const vault = req.vault!;

    // Upload original file to vault
    const file = await vault.addFile(
      req.file!.buffer,
      req.file!.originalname,
      req.file!.mimetype,
    );

    // Store analysis result
    await vault.addDocument({ rowCount: 100 }, 'Analysis');
    await vault.seal('Analysis complete');

    res.json({
      vaultId:  vault.id,
      fileUrl:  file.url,           // CDN URL: https://assets.prudra.dev/...
      fileName: file.name,
    });
  }
);