Titan

// swift-tools-version:4.0
import PackageDescription

let package = Package(
    name: "mywebapp",
    products: [
        .executable(name: "mywebapp", targets: ["mywebapp"]),
    ],
    dependencies: [
        .package(url: "https://github.com/bermudadigitalstudio/TitanKituraAdapter.git", .upToNextMinor(from: "0.9.0")),
        .package(url: "https://github.com/bermudadigitalstudio/Titan", .upToNextMinor(from: "0.9.0"))
    ],
    targets: [
        .target(
            name: "mywebapp",
            dependencies: [
                "TitanKituraAdapter",
                "Titan"
            ]),
    ]
)

import Titan
import TitanKituraAdapter

let app = Titan()

/// The Response is set to 404 by default.
/// if no subsequent routing function is called, a 404 will be returned
app.addFunction(DefaultTo404)

/// Hello World, req is sent to next matching route 
app.get("/") { req, _ in
    return (req, Response(200, "Hello World")) // here we "overwrite" the 404 that was returned in the previous func.
}

/// 2 parameters in URL
app.delete("/item/{item_id}/subitem/{sub_item_id}") { req, res, paramaters in
    let itemId = params["item_id"] ?? ""
    let subId = params["sub_item_id"] ?? ""
	let text = "I will delete \(subId) in \(itemId)"
    return(req, Response(200, text))
}

/// parse JSON sent via POST, return 400 on parsing error
app.post("/data") { req, _ in
    guard let json = req.json as? [String: Any] else {
        return (req, Response(400))
    }
    return(req, Response(200, "I received \(json)"))
}

/// let’s manipulate the response of all GET routes
/// and yes, that is already a simple example for a middleware!
app.get("*") { req, res in
	var newRes = res.copy()  // res is a constant, so we need to copy
	newRes.body += " and hello from the middleware!"
    return (req, newRes)  // will return "Hello World and hello from the middleware!"
}


// start the Kitura webserver on port 8000
TitanKituraAdapter.serve(app.app, on: 8000)