Async (EventMachine) HTTP client, with support for:
- Asynchronous HTTP API for single & parallel request execution
- Keep-Alive and HTTP pipelining support
- Auto-follow 3xx redirects with max depth
- Automatic gzip & deflate decoding
- Streaming response processing
- Streaming file uploads
- HTTP proxy and SOCKS5 support
- Basic Auth & OAuth
- Connection-level & Global middleware support
- HTTP parser via http_parser.rb
- Works wherever EventMachine runs: Rubinius, JRuby, MRI

WWW: https://github.com/igrigorik/em-http-request