Features:

• Event-driven architecture, all asynchronous
• Automatic following changes of Leader Partition in case of broker failure
• Connection sharing: one connection per kafka broker is used
• Flow control: slow consumer will suspend fetching and prevent memory exhausting
• Integration tests are part of the codebase. Use Vagrant to provision 1 zookeeper and 3 kafka virtual servers
• Use RxExtensions library to expose API and for internal implementation

Not implemented:

• Offset Fetch/Commit API
• No compression
• No configurable serializers (everything is byte array)
• No configurable partitioner (fletcher32 checksum is hardcoded)