post array of json with alamofire swift

Question

How can i post array of json objects with alamofire in swift?

my final data (which i want to post) looks like:

temp = [{
        "time": 1,
        "score": 20,
        "status": true,
        "answer": 456
    },
    {
        "time": 0,
        "score": 0,
        "status": false,
        "answer": 234
    },
    {
        "time": 0,
        "score": 20,
        "status": true,
        "answer": 123
    }
]

i got hint that i have to create custom parameter encoding but i am confused how can i do that. Someone please help me.

my current code looks like
let parameters: Parameters = [
    "answers": temp,
    "challenge_date": "2019-03-01"
]

Alamofire.request("...url", method: .post, parameters: parameters, encoding: JSONEncoding.default, headers: headers)
    .responseJSON {
        response in

            if
        let status = response.response ? .statusCode {
            let classFinal: JSON = JSON(response.result.value!)

            if (status > 199 && status < 300) {
                self.dismiss(animated: true)
            } else {


            }
        }

    }

I guess temp is your array. Any errors that you are facing with this? — Ganesh Somani
– Ganesh Somani, Commented Mar 1, 2019 at 10:47
you need to send temp in the format of array & dict. See carefully, treat [ ... ] as array and { ... } as dict. Now set answers value with this. NOTE Your post req params data is always be in array and dict not json. — 200_OK
– 200_OK, Commented Mar 1, 2019 at 10:52
@GaneshSomani "JSON parse error - No JSON object could be decoded" — Deepak
– Deepak, Commented Mar 1, 2019 at 10:52
How is your Parameters class implemented. That is the source of your error. — Ganesh Somani
– Ganesh Somani, Commented Mar 1, 2019 at 10:56

AtulParmar · Accepted Answer · 2019-03-01 11:27:57Z

2

In your code change method .put to .post, and not required to SVProgressHUD.dismiss() in else, because you already dismiss before if else part

Also, you need to convert your JSON string(temp variable) to array and then pass with the parameter.

let parameters: Parameters = [
            "answers": temp,
            "challenge_date": "2019-03-01"
        ]

    Alamofire.request("...url", method: .post, parameters: parameters, encoding:  JSONEncoding.default , headers: headers)
        .responseJSON { response in

            if let status = response.response?.statusCode {
            let classFinal : JSON = JSON(response.result.value!)
                SVProgressHUD.dismiss()
                if status > 199 && status < 300 {                    
                     self.dismiss(animated: true)
                }
            }
    }

edited Mar 1, 2019 at 11:27

answered Mar 1, 2019 at 10:49

AtulParmar

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3 Comments

Deepak Over a year ago

yes. still getting error "JSON parse error - No JSON object could be decoded"

AtulParmar Over a year ago

temp is your JSON string right?, So you need to convert JSON to the dictionary and then pass with the parameter

AtulParmar Over a year ago

first, check your request and parameter with the postman, is it working fine?

Ganesh Somani · Accepted Answer · 2019-03-01 11:06:20Z

0

I hope your Parameters class follows Codable protocol.

As far as I see, you are getting an error parsing that object to JSON. Hence that is the source of your error.

Could you also add code for your Parameters class / struct

edited Mar 1, 2019 at 11:06

answered Mar 1, 2019 at 10:58

Ganesh Somani

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Comments

Community · Accepted Answer · 2020-06-20 09:12:55Z

0

First, convert your Temp

Array into String

than pass in that in parameters of Alamofire.

extension NSArray {
    
    func toJSonString(data : NSArray) -> String {
        
        var jsonString = "";
        
        do {
            
            let jsonData = try JSONSerialization.data(withJSONObject: data, options: .prettyPrinted)
            jsonString = NSString(data: jsonData, encoding: String.Encoding.utf8.rawValue)! as String
            
        } catch {
            print(error.localizedDescription)
        }
        
        return jsonString;
    }
    
}

edited Jun 20, 2020 at 9:12

CommunityBot

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answered Mar 1, 2019 at 11:13

Anup Gupta

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2 Comments

Deepak Over a year ago

temp is an array of json not a dictionary

Anup Gupta Over a year ago

Now pass your Array and get String.

M Murteza · Accepted Answer · 2023-12-02 11:32:32Z

This is for Swift 5 . Please make sure encoding must be encoding: JSONEncoding.default . temp can be simple string Array or dictionary array. This work for me .

let url = ""
    print(url)
let temp: [String] = ["",""]
  let parameters: Parameters = [
"answers": temp,
"challenge_date": "2019-03-01"]
    
    let headers: HTTPHeaders = [
        "Accept": "application/json",
        "Content-Type": "application/json"
    ]
    print(params)
    AF.request(url, method: .post, parameters: params, encoding: JSONEncoding.default, headers: headers)
        .responseJSON(completionHandler: { response in
            switch response.result {
            case .success:
            print("Success")
           case .failure(let error):
                print(error)  }
        })

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