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I am new in swift and I am also trying to use Alamofire to call data from API. I am quite puzzled on how I will use the PUT Request to update data. I've read some solutions here in SO but I don't know how I will apply on my app. I am creating an Event App, the scenario should be, when the participant clicked the Check In Button, it will update the registered_flag to true meaning the participant will marked as Registered and the button will be changed to Check Out . I really don't know if my API Service is correct or not. Hope you could help me. Thank you so much.

JSON of the Event Participant Where in the registered_flag should be updated once checkInOutButton

"event_name": "Q & A", "event_participants": [ "participant_id": "70984656-92bc-4c36-9314-2c741f068523", "employee_number": null, "last_name": "Surname", "first_name": "FirstName", "middle_name": null, "display_name": "Surname, FirstName ", "department_name": "Medical Informatics", "position_name": "Application Developer", "registered_flag": true, "registered_datetime": "2018-09-13T08:54:40.150", "registration_type": 1, "delete_flag": false, "manual_reg_flag": false, "out_flag": false, "out_datetime": null, "classification": 6, "others": "Guest"

JSON to update for check in

"registered_flag": true, "registration_type": 1

updateType

enum UpdateParticipantType: String {
case checkIn = "Check In"
case checkOut = "Check Out"
APIService for UpdateParticipant
 func updateParticipant(updateType: UpdateParticipantType,
                       participantID: String,
                       successBlock: @escaping ([Attendee]) -> Void,
                       failureBlock: @escaping (Error) -> Void)
   let updateParticipantURL = URL(string: "\(REGISTER_PARTICIPANT_URL)/\(updateType)/\(participantID)")
    Alamofire.request(updateParticipantURL!, method: .put).responseJSON { (response) in
        print(response)
        if let error = response.error
            failureBlock(error)
            print(error)
            return
        if let jsonArray = response.result.value as? [[String : Any]] {
            for anItem in jsonArray {
                if let eventparticipants = anItem["event_participants"] as? [[String : Any]] {
                    var extractedAttendees = [Attendee]()
                    for participants in eventparticipants{
                        let success = Attendee.init(JSON: participants)
                        extractedAttendees.append(success!)
                    successBlock(extractedAttendees)
                @inokey yes by the default registered_flag : false in json and once the user clicks the check in button the  registered_flag will be true.
– Titus
                Sep 13, 2018 at 7:49
                No changes in your serialization code. It's related to getting response from server, and you sending parameters TO the server. So no changes.
– inokey
                Sep 14, 2018 at 7:15
        
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