This is a Swift Server Side open source project built on the Swift 4.1 and Vapor 3 frameworks. Because of apple’s release of the cool event-driven non-blocking network framework SwiftNIO, Vapor 3 introduced it at a blazing pace, leading to Vapor 2 and Vapor 3. The grammar is very different. For me personally, it looks like the difference between Swift 2 -> Swift 3 is awkward. So I used Vapor 3 to rewrite part of the interface and open it for reference and communication with interested partners. Currently listed in the document API has been deployed in a formal environment application, and will continue to be perfected as needed.