Alamofire JSON Response Error with post parameter - json

Question

I use alamofire and swityjson, although I use it in the same way, I did not get any results here.
let exampleURl = URL(string: exampleUrl)!
let params: [String: String] = ["id": "expampleString"]
let headers: HTTPHeaders = [
"charset": "UTF-8",
"Accept": "application/json"
]
Alamofire.request(exampleURL, method: .post, parameters: params, encoding: JSONEncoding.default, headers: headers).validate(statusCode: 200..<600).responseJSON() { response
in
switch response.result {
case.success:
if let json = response.data {
do{
let data = try JSON(data: json)
let str = data
print(str["arrayName"])
let arrayData = str["arrayName"].arrayValue.map{$0["content"].stringValue}
print(arrayData[0])
let credit = arrayData[0]
}
catch{
print("JSON Error")
}
}
case .failure(let error):
print("RESPONSE ERROR: \(error)")
}
}
This is my Json output.
{"arrayName":[{"content":"Hello_World"}]}
This is Error. I don't understand. I send post parameters but i can't fetch parameter in Json array.
RESPONSE ERROR: responseSerializationFailed(reason: Alamofire.AFError.ResponseSerializationFailureReason.jsonSerializationFailed(error: Error Domain=NSCocoaErrorDomain Code=3840 "Invalid value around character 0." UserInfo={NSDebugDescription=Invalid value around character 0.}))

Answer 1

it seems like u used alamofire in the wrong way, try it out please:
here is the request:
let url = URL(string: "YOUR LINK HERE")
let task = URLSession.shared.dataTask(with: url!) { (data, response, error) in
let jsonDecoder = JSONDecoder()
let responseModel = try jsonDecoder.decode(BaseModel.self, from: data!)
}
task.resume()
here is your swift model classes:
import Foundation
struct ArrayName : Codable {
let content : String?
enum CodingKeys: String, CodingKey {
case content = "content"
}
init(from decoder: Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
content = try values.decodeIfPresent(String.self, forKey: .content)
}
}
struct BaseModel : Codable {
let arrayName : [ArrayName]?
enum CodingKeys: String, CodingKey {
case arrayName = "arrayName"
}
init(from decoder: Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
arrayName = try values.decodeIfPresent([ArrayName].self, forKey: .arrayName)
}
}

Answer 2

That error usually indicates you're not getting a JSON response. You need to debug that response, usually by printing it as a String or setting a breakpoint in the response handler and inspecting it there.