Swift - How to make a post request - ios

Question

I am trying to make a POST request using OAuthSwift but I have been stuck. Can someone point me in the right direction?
On ViewController1 we have a list of users, when you tap on a user, you get to ViewController2 which has the details for the user. If you tap a cell, you get an action sheet which you can change a user status. Once you are done, you tap 'save' and the save button should make a post request to the API.
I am lost on how to do this, here is what I have so far.
The Model for GET Request
struct DailyInjuryIllnessPlayer: Hashable, Codable {
var playerId: Int
var playerName: String?
var numberOfStatusMissingDays: Int
var entries: [Entry]
func hash(into hasher: inout Hasher) {
hasher.combine(playerId)
}
static func == (lhs: DailyInjuryIllnessPlayer, rhs: DailyInjuryIllnessPlayer) -> Bool {
return lhs.playerId == rhs.playerId
}
}
struct Entry: Codable {
var injuryIllnessId: Int
var injuryIllnessName: String?
var statusDate: Date
var modifiedBy: String?
var status: String?
var playerStatusId: Int
var parentEventId: Int?
}
The Model for the POST Request:
struct CreateDailyInjuryIllnessNote: Encodable {
var teamId: UInt32
var dailyInjuryIllnessStatus: [DailyInjuryIllnessStatus]
}
struct DailyInjuryIllnessStatus: Encodable {
var iIeventId: UInt32
var effectiveDate: Date
var eventStatusId: UInt32
var playerId: UInt32
}
When a user taps on the user from ViewController1, they segue to ViewController 2 where they can see the details of the user, which would be the [Entry] array from the GET Request.
View Controller2:
The user taps a cell (Entry Object) and they get an action sheet which will change the variable status to whatever title they selected in the action sheet (available, or unavailable).
Next, the user can tap save to send the updated status results to the RESTFUL API.
This is where I am stuck, I am not sure what to do, if you cannot help with the code can you please point me to a tutorial or the steps in pseudocode to help out?
Here is what I tried:
In ViewController2
private extension DailyInjuryIllnessAPI.Model.Request.CreateDailyInjuryIllnessNote {
static func from(playerId: Int?, statusNote: DailyInjuryIllnessAPI.Model.Request.CreateDailyInjuryIllnessNote) {
guard let playerId = playerId else { return nil }
let teamId = statusNote.teamId
// Extract the values and add to dailyInjuryIllnessStatusArray
for statusValues in statusNote.dailyInjuryIllnessStatus {
let iIeventId = statusValues.iIeventId
let effectiveDate = statusValues.effectiveDate
let eventStatusId = statusValues.eventStatusId
let playerId = statusValues.playerId
}
}
}
In the model for the POST request:
func createDailyInjuryIllnessNote(forTeamID teamId: Int, createDailyInjuryIllnessStatus: DailyInjuryIllnessAPI.Model.Request.CreateDailyInjuryIllnessNote, completion: #escaping ((Result<DailyInjuryIllnessPlayer, API.APIError>) -> Void)) {
guard let createDailyInjuryIllnessNoteData = try? API.jsonEncoder.encode(createDailyInjuryIllnessStatus) else {
completion(.failure(.encoding(error: "Could not encode DailyInjuryIllnessAPi.Model.Request.CreateDailyInjuryIllnessNote: \(createDailyInjuryIllnessStatus)")))
return
}
let baseURL = self.configuration.baseURL
let endPoint = baseURL.appendingPathComponent("team/\(teamId)/daily-injury-illness-status")
var headers: OAuthSwift.Headers = [:]
headers["Content-Type"] = "application/json"
API.shared.httpClient.post(endPoint, headers: headers, body: createDailyInjuryIllnessNoteData) { (result) in
switch result {
case .success(let response):
do {
let note = try API.jsonDecoder.decode(DailyInjuryIllnessPlayer.self, from: response.data)
completion(.success(note))
} catch (let error) {
completion(.failure(.decoding(error: error.localizedDescription)))
}
case .failure(let error):
completion(.failure(.unknown(message: error.localizedDescription)))
}
}
}
If anyone can help it would be greatly appreciated.