extension Communicable {
    
    public var serviceUUID: CBUUID {
        return CBUUID(string: "YOUR UUID")
    }
    
}

struct GetUserIDItem: Communicable {
    
    public var method: RequestMethod {
        return .get(isNotified: false)
    }
    
    public var characteristicUUID: CBUUID {
        return CBUUID(string: "YOUR UUID")
    }
    
}

struct PostUserIDItem: Communicable {
    
    public var method: RequestMethod {
        return .post
    }
    
    public var characteristicUUID: CBUUID {
        return CBUUID(string: "YOUR UUID")
    }
    
}

Bleu.addReceiver(Receiver(GetUserID(), get: { [weak self] (manager, request) in
    guard let text: String = self?.textField.text else {
        manager.respond(to: request, withResult: .attributeNotFound)
        return
    }
    request.value = text.data(using: .utf8)
    manager.respond(to: request, withResult: .success)
}))

Bleu.startAdvertising()

let request: Request = Request(communication: GetUserID()) { [weak self] (peripheral, characteristic, error) in
    if let error = error {
        debugPrint(error)
        return
    }
    
    let data: Data = characteristic.value!
    let text: String = String(data: data, encoding: .utf8)!
    
    self?.centralTextField.text = text
}
Bleu.send([request]) { completedRequests, error in
    if let error = error {
        print("timeout")
    }
}

Bleu.addReceiver(Receiver(PostUserID(), post: { (manager, request) in
    let data: Data = request.value!
    let text: String = String(data: data, encoding: .utf8)!
    print(text)
    manager.respond(to: request, withResult: .success)
}))

Bleu.startAdvertising()

let data: Data = "Sample".data(using: .utf8)!
let request: Request = Request(communication: PostUserID()) { (peripheral, characteristic, error) in
    if let error = error {
        debugPrint(error)
        return
    }
    
    print("success")
}
request.value = data
Bleu.send([request]) { completedRequests, error in
    if let error = error {
        print("timeout")
    }
}