Add guest count API

Sources/App/configure.swift

@@ -16,6 +16,16 @@ private let df: DateFormatter = {
     return df
 }()
 
+func guestCount() -> Int {
+    registeredGuests
+        .reduce([]) { $0 + $1.components(separatedBy: "+") }
+        .reduce([]) { $0 + $1.components(separatedBy: "-") }
+        .reduce([]) { $0 + $1.components(separatedBy: "und ") }
+        .reduce([]) { $0 + $1.components(separatedBy: "&") }
+        //.map { $0.trimmingCharacters(in: .whitespacesAndNewlines) }
+        .count
+}
+
 
 func add(guest: String) -> String {
     registeredGuests.insert(guest)

Sources/App/routes.swift

@@ -12,16 +12,13 @@ private func register(_ req: Request, isAttending: Bool) -> String {
 }
 
 func routes(_ app: Application) throws {
-    app.get { req in
+
+    app.get("festival", "api", "ping") { req in
         return "It works!"
     }
 
-    app.get("festival", "api", "hello") { req in
-        return "It works!"
-    }
-
-    app.get("hello") { req in
-        return "It works!"
+    app.get("festival", "api", "count") { req in
+        return "\(guestCount())"
     }
 
     app.post("festival", "api", "register") { req -> String in