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SwiftNIO is a cross-platform asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Low-level protocol implementations are often a collection of ChannelHandlers that implement a protocol but still require the user to have a good understanding of SwiftNIO. Often, low-level protocol implementations will then be wrapped in high-level libraries with a nicer, more user-friendly API. High-level implementations are usually libraries that come with an API that doesn't expose SwiftNIO's ChannelPipeline and can therefore be used with very little (or no) SwiftNIO-specific knowledge. The implementations listed below do still do all of their I/O in SwiftNIO and integrate really well with the SwiftNIO ecosystem. SwiftNIO aims to support all of the platforms where Swift is supported. Currently, it is developed and tested on macOS and Linux.
Features
- The SwiftNIO project is split across multiple repositories
- It's like Netty, but written for Swift
- The latest released SwiftNIO 1 version supports Swift 4.0, 4.1, 4.2, and 5.0
- SwiftNIO is fundamentally a low-level tool for building high-performance networking applications in Swift
- SwiftNIO is focused on providing the low-level building blocks for higher-level applications
- The basic I/O primitive of SwiftNIO is the event loop