There are 3 repositories under swift-backend topic.
Chat Microservice with Vapor 4 webscoket
Project provides basic idea and approach to implement the Swift Backend, here connfigure server package and write the rest api in swift language itself, there is no any dependencies of other languages to build the rest api's
Vapor is web framework for Swift, in this project I used 🐘 PostgreSQL for database. If you search ORM (Object Relational Mapping) Vapor has Fluent.
Collection of maybe useful Swift code ranging from simple Swift scripts running on the CLI, showcases, libraries, as well as fully fledged applications.
Amazon Lambda app with Swift and Docker