routes.swift

struct TweetRoute: Route {
  @EnviromentObject var db: Database
  @Path var user: User
  @Path var tweet: Tweet

  var pattern: Pattern {
    .GET
    "user"
    User.ID
    "status"
    Tweet.ID
  }
  
  var handler = { request in
    html {
      body { ... }
    }
  }
}

struct PublishTweet: Route {
  @EnviromentObject var db: Database
  @EnviromentObject var events: Events
  @State var user: User? // get user if logged in, state support implemented elsewhere
  @Body var data: Tweet.Data
  
  var pattern: Pattern { "/tweets/create" }
  
  var handler = { request in
    try await publishTweet(tweet: data)
    return .success
  }
  
  private func publishTweet(tweet: Tweet.Data) async throws {
    try await db.store(tweet)
    events.publish(tweet)
  }
}

struct Server: HTTP.Server {
  var routes: Routing {
    root {
      TweetRoute()
      PublishTweet()
    }
    .enviromentObject(database)
    .enviromentObject(events)
  }
}