Beycloud File Upload

Overview

Beycloud is an open-source Node.js library that provides a unified interface for uploading and managing files across multiple storage providers, including:

• AWS S3
• Google Cloud Storage (GCS)
• Azure Blob Storage
• DigitalOcean Spaces
• Local filesystem

It abstracts provider-specific SDKs and presents a simple, consistent API.

Features

• Unified API for multiple cloud providers
• Upload/download/delete/list files
• Generate signed URLs
• Supports file metadata and content type
• Designed for use with Express + Multer
• Written in TypeScript with type support

Installation

npm install beycloud

Configuration

Each provider requires its own configuration object:

AWS S3

const awsConfig = {
  bucket: process.env.AWS_BUCKET,
  region: process.env.AWS_REGION,
  credentials: {
    accessKeyId: process.env.AWS_ACCESS_KEY,
    secretAccessKey: process.env.AWS_SECRET_KEY
  }
};

Google Cloud Storage (GCS)

const gcsConfig = {
  bucket: process.env.GCS_BUCKET,
  projectId: process.env.GCS_PROJECT_ID,
  credentials: process.env.GCS_CREDENTIALS_BASE64 // Base64-encoded service account JSON
};

Azure Blob Storage

const azureConfig = {
  connectionString: process.env.AZURE_CONNECTION_STRING,
  container: process.env.AZURE_CONTAINER
};

DigitalOcean Spaces

const doConfig = {
  bucket: process.env.DO_BUCKET,
  region: process.env.DO_REGION,
  endpoint: process.env.DO_ENDPOINT,
  forcePathStyle: false,
  credentials: {
    accessKeyId: process.env.DO_ACCESS_KEY,
    secretAccessKey: process.env.DO_SECRET_KEY
  }
};

Local Filesystem

const localConfig = {
  basePath: './uploads'
};

Basic Usage with Express

import express from 'express';
import multer from 'multer';
import { BeyCloud } from 'beycloud';

const app = express();
const upload = multer();
const cloudStorage = new BeyCloud('aws', awsConfig);

app.post('/upload', upload.single('file'), async (req, res) => {
  try {
    const file = req.file;
    const filename = `${Date.now()}-${file.originalname}`;
    const url = await cloudStorage.uploadFile(filename, file.buffer, file.mimetype);
    res.json({ url });
  } catch (err) {
    res.status(500).json({ error: err.message });
  }
});

API Methods

uploadFile(key, data, contentType?)

Uploads a file. Returns a signed or direct URL.

downloadFile(key)

Downloads the file. Returns a buffer or stream depending on the provider.

deleteFile(key)

Deletes the file. Returns true if successful.

exists(key)

Checks if the file exists. Returns boolean.

getFile(key)

Returns metadata about the file.

getFilesList(maxKeys?, prefix?)

Returns an array of file metadata under a prefix.

getSignedUrl(key, expiresIn)

Generates a signed URL that expires in expiresIn seconds.

Architecture

• BeyCloud is a wrapper class that internally selects a provider-specific service.
• Each provider service implements a common interface.
• Uses official SDKs under the hood: AWS SDK, Azure SDK, GCS SDK.
• Unified method signatures for all operations.

Contributing

1. Fork the repo
2. Run npm install
3. Set up .env with test credentials
4. Run tests with npm test
5. Submit a PR with clear description

To do

Rewrite library for:

• C# dotNET
• Python
• Java
• Go

License

Copyright (c) 2025 Davide Tarditi

Beycloud-js is released under MIT license. You are free to use, modify and distribute this software, as long as the copyright header is left intact.

See LICENSE.txt for more information.