MVVMAPICALL

Post call using Urlsession

let url = URL(string: "http:sdfcewrtvervtr.com")!
var request = URLRequest(url: url)
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.httpMethod = "POST"

 let parameters: [String: Any] = [
"id": 45,
"name": "ios"]

request.httpBody = parameters.percentEncoded()
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, 
    let response = response as? HTTPURLResponse, 
    error == nil else {                                              // check for fundamental networking error
    print("error", error ?? "Unknown error")
    return
}

guard (200 ... 299) ~= response.statusCode else {                    // check for http errors
    print("statusCode should be 2xx, but is \(response.statusCode)")
    print("response = \(response)")
    return
}

let responseString = String(data: data, encoding: .utf8)
print("responseString = \(responseString)")
}
task.resume()

// params setter

extension Dictionary {

func percentEncoded() -> Data? {
    return map { key, value in
        let escapedKey = "\(key)".addingPercentEncoding(withAllowedCharacters: .urlQueryValueAllowed) ?? ""
        let escapedValue = "\(value)".addingPercentEncoding(withAllowedCharacters: .urlQueryValueAllowed) ?? ""
        return escapedKey + "=" + escapedValue
    }
    .joined(separator: "&")
    .data(using: .utf8)
}

}

extension CharacterSet {

static let urlQueryValueAllowed: CharacterSet = {
    let generalDelimitersToEncode = ":#[]@" // does not include "?" or "/" due to RFC 3986 - Section 3.4
    let subDelimitersToEncode = "!$&'()*+,;="
    var allowed = CharacterSet.urlQueryAllowed
    allowed.remove(charactersIn: "\(generalDelimitersToEncode)\(subDelimitersToEncode)")
    return allowed
}()

}