Endpoint.swift

struct GetPokemonEndpoint: EndpointType {
    let middleware: [MiddlewareType] = [
        debugLogger,
        clientContentNegotiator(JSONMediaType)
    ]

    func serialize(id: Int) throws -> Request {
        return Request(method: .GET, uri: URI(path: "/api/v1/pokemon/\(id)/"))
    }

    func parse(response: Response) throws -> Pokemon {
        let content = response.content!
        return Pokemon(
            id: content["national_id"]!.int!,
            name: content["name"]!.string!
        )
    }

    func mock(id: Int) throws -> Pokemon {
        return Pokemon(id: id, name: "Pokemon \(id)")
    }
}

let getPokemonEndpoint = GetPokemonEndpoint()

let getPokemonMock = getPokemonEndpoint.createWithMock()
let pokemonMock = try getPokemonMock(129)

let client = try Client(host: "www.pokeapi.co", port: 80)
let getPokemon = getPokemonEndpoint.createWithClient(client)
let pokemon = try getPokemon(129)