Post request in swift with encodable

Question

I want to create a post request in swift but i got confused in Encodable protocols. and how to create them.

below is the data that i want to post :

{
answers: [{
            "time": 1,
            "score": 20,
            "status": true,
            "answer": 456
 }],
challenge_date": "2019-03-13"  
}

How can i post it with Encodable or JSONSerialization?

Answer 1

This JSON is wrong. You JSON must be valid. In order to make above JSON valid we need to set array with a key.

Wrong

{
 [{
            "time": 1,
            "score": 20,
            "status": true,
            "answer": 456
 }],
challenge_date": "2019-03-13"  
}

Correct

{
    "array": [{
                "time": 1,
                "score": 20,
                "status": true,
                "answer": 456
     }],
    "challenge_date": "2019-03-13"  
}

Swift models for above JSON is this.

struct YourJSONModel: Codable {
    var challenge_date: String
    var array: Array<ResultModel>
}
struct ResultModel: Codable {
    var time: Int
    var score: Int
    var status: Bool
    var answer: Int
}

var result = ResultModel()
result.time = 10
result.score = 30
result.status = true
result.answer = 250


var jsonModel = YourJSONModel()
jsonModel.array = [result]
jsonModel.challenge_date = "2019-03-13"

Convert above model to json data to post. Use below code.

let jsonData = try! JSONEncoder().encode(jsonModel)

var request = URLRequest(url: yourApiUrl)
request.httpBody = jsonData
request.httpMethod = "POST"

Alamofire.request(request).responseJSON { (response) in
            switch response.result {
            case .success:
                print(response)                    
            case .failure(let error):
                print(error.localizedDescription)
            }
}