let apiKey: String = "YOUR_API_KEY"
let userId: String?
let baseUrl: URL?
let callbackUrl: URL?
let service: String?
let delegate: AsleepConfigDelegate = self

Asleep.initAsleepConfig(apiKey: apiKey,
                        userId: userId,
                        baseUrl: baseUrl,
                        callbackUrl: callbackUrl,
                        service: service,
                        delegate: self)

Asleep.initAsleepConfig(appId: "YOUR_APP_ID",
                        appSecret: "YOUR_APP_SECRET",
                        userId: userId,
                        delegate: self)

protocol AsleepConfigDelegate {
    func userDidJoin(userId: String, config: Asleep.Config)
    func didFailUserJoin(error: Asleep.AsleepError)
    func userDidDelete(userId: String)
}

var config: Asleep.Config? 
if let config {
    Asleep.deleteUser(config: config)
}

var config: Asleep.Config?
let metadata = Asleep.Model.UserMetadata(birthYear: 1990,
                                         birthMonth: 5,
                                         birthDay: 21,
                                         gender: .female,
                                         height: 165.5,
                                         weight: 55.2)

Task {
    do {
        if let config {
            try await Asleep.saveUserMetadata(metadata, config: config)
        }
    } catch {
        print(error)
    }
}

var config: Asleep.Config?

Task {
    do {
        if let config {
            let metadata = try await Asleep.fetchUserMetadata(config: config)
        }
    } catch {
        print(error)
    }
}

struct UserMetadata {
    let birthYear: Int?
    let birthMonth: Int?
    let birthDay: Int?
    let gender: Gender?
    let height: Double?
    let weight: Double?
}

enum Gender: String {
    case male
    case female
    case nonBinary
    case other
    case preferNotToSay
}