How to set body parameter for Alamofire swift - Parameters Issue

问题

I am really struggling to set body parameter for posting data to server. I have different json encoding references but its not working. Anybody please suggest.
Issue is after passing values into parameter SectionList model gives backslashes and over all parameters not serialized.

My values are :

AppID
ApprovDT
UnitId
SectionList (Model as I encode it to JSON).

Variable Code:

let someDate = Date()
let approvDT = Int(someDate.millisecondsSince1970)
let unitId = id
let AppID = UserDefaults.standard.integer(forKey: "appointmentID")
//allSectionList is the model and converting to JSON
let jsonData = try! JSONEncoder().encode(allSectionList)
let jsonString = String(data: jsonData, encoding: .utf8)!
print(jsonString)

I want to create this Post request already using Codable Model :

{"appointmentId":15473352,"approveDateTime":1575463820102,"projectUnitId":8550749,"sectionList":[{"items":[{"actionId":4,"actionType":101,"required":true,"selection":[{"itemValue":"3","required":false,"textField":"Sayaç bodrumda"}],"textField":"Sayaç Yeri","textValue":"Sayaç bodrumda"}],"title":"Proje Bilgileri"}]}

Model { "projectUnitId": 0, "appointmentId": 0, "approveDateTime": "0001-01-01T00:00:00", "sectionList": null }

Alamofire:

let parameters: [String: Any] = [
            "projectUnitId" : id ?? 0,
            "appointmentId" : AppID,
            "approveDateTime" : approvDT,
            "sectionList": jsonString as String
        ]

        print(parameters)

        Alamofire.request(urlString, method: .post, parameters: parameters ,encoding: JSONEncoding.default, headers: [ "Accept":"application/json", "Authorization":"Bearer \(Common.TOKEN_KEY)"]).responseJSON {
        response in
          switch response.result {
                        case .success:
                            print(response)

                            break
                        case .failure(let error):

                            print(error)
                        }
        }

回答1:

Model

struct Model: Codable {

  enum CodingKeys: String, CodingKey {
    case approveDateTime
    case appointmentId
    case projectUnitId
    case sectionList
  }


  var approveDateTime: Int?
  var appointmentId: Int?
  var projectUnitId: Int?
  var sectionList: [SectionList]?



  init(from decoder: Decoder) throws {
    let container = try decoder.container(keyedBy: CodingKeys.self)
    approveDateTime = try container.decodeIfPresent(Int.self, forKey: .approveDateTime)
    appointmentId = try container.decodeIfPresent(Int.self, forKey: .appointmentId)
    projectUnitId = try container.decodeIfPresent(Int.self, forKey: .projectUnitId)
    sectionList = try container.decodeIfPresent([SectionList].self, forKey: .sectionList)
  }

}

struct SectionList: Codable {

  enum CodingKeys: String, CodingKey {
    case title
    case items
  }

  var title: String?
  var items: [Items]?



  init(from decoder: Decoder) throws {
    let container = try decoder.container(keyedBy: CodingKeys.self)
    title = try container.decodeIfPresent(String.self, forKey: .title)
    items = try container.decodeIfPresent([Items].self, forKey: .items)
  }

}

struct Items: Codable {

  enum CodingKeys: String, CodingKey {
    case selection
    case textField
    case actionType
    case actionId
    case textValue
    case required
  }

  var selection: [Selection]?
  var textField: String?
  var actionType: Int?
  var actionId: Int?
  var textValue: String?
  var required: Bool?



  init(from decoder: Decoder) throws {
    let container = try decoder.container(keyedBy: CodingKeys.self)
    selection = try container.decodeIfPresent([Selection].self, forKey: .selection)
    textField = try container.decodeIfPresent(String.self, forKey: .textField)
    actionType = try container.decodeIfPresent(Int.self, forKey: .actionType)
    actionId = try container.decodeIfPresent(Int.self, forKey: .actionId)
    textValue = try container.decodeIfPresent(String.self, forKey: .textValue)
    required = try container.decodeIfPresent(Bool.self, forKey: .required)
  }

}

Encode Model and pass it as parameter in request.

func params(model:Model) -> [String: Any] {
            do {
                let data = try JSONEncoder().encode(model)
                guard let jsonObject = try JSONSerialization.jsonObject(with: data, options: .allowFragments) as? [String: Any] else { return [:] }
                return jsonObject
            } catch {
                print("ERROR:\(error) ")
            }
            return [:]
        }

Alamofire.request(urlString, method: .post, parameters:params(),encoding: JSONEncoding.default, headers: [ "Accept":"application/json", "Authorization":"Bearer \(Common.TOKEN_KEY)"]).responseJSON {
        response in
          switch response.result {
                        case .success:
                            print(response)

                            break
                        case .failure(let error):

                            print(error)
                        }
        }

回答2:

I solved Issue by adding String extension.

来源：https://stackoverflow.com/questions/59194884/how-to-set-body-parameter-for-alamofire-swift-parameters-issue

标签

ios

json

swift

encoding

alamofire