simple-uploader/Uploader
Uploader
Uploader is a JavaScript library designed for managing reliable, resumable, and concurrent file transfers within web applications. It provides a client-side interface that leverages the browser's native file system capabilities to handle data selection and transmission.
The library distinguishes itself by implementing a chunked data handling model, which breaks large files into smaller segments to ensure fault tolerance. This architecture allows for the automatic recovery of transfers following network interruptions or browser restarts, while maintaining state-persistent queues that enable users to pause, resume, or cancel operations at any time.
Beyond its core transfer logic, the library includes utilities for managing concurrent data streams to maximize bandwidth utilization during batch operations. It also provides components for implementing user-facing file selection, including support for drag-and-drop interfaces and real-time, event-driven progress monitoring.
Features
- File Upload - Manages reliable, resumable, and concurrent file uploads using the HTML5 File API and chunked data transfers.
- Chunked Uploaders - Facilitates reliable uploads of massive files by breaking them into manageable chunks for automatic recovery.
- Resumable File Transfers - Handles large file transfers that can be paused, resumed, or recovered automatically after network failures.
- Upload Lifecycle Hooks - Provides mechanisms to pause, resume, or cancel individual file transfers and entire queues.
- Concurrent Upload Pipelines - Enables the execution of multiple file transfers simultaneously to maximize throughput.
- XHR-Based Streaming - Manages multiple simultaneous data streams using asynchronous requests to maximize bandwidth utilization during batch file transfers.
- Transfer Concurrency Controls - Executes multiple file uploads simultaneously to maximize available bandwidth and increase speed.
- Binary Blob Management - Provides utilities for slicing large files into binary segments to facilitate reliable data transfer.
- Fault Tolerance Implementation - Ensures reliable data transmission by splitting files and automatically retrying failed connections during unstable sessions.
- Queue and Log Persistence - Maintains persistent registries of file segments and transfer status to enable pausing and resuming across sessions.
- File Selection Controls - Implements drag-and-drop zones and file pickers to simplify user file selection.
- Drag-and-Drop File Upload - Designates interface elements as drop zones to simplify user file submission.
- Browser File System API Integrations - Interfaces directly with browser-level file system APIs to handle local data selection and reading.
