How to get JSON response from URL with json inside in swift - json

Question

Hi my url of request is:
http://MYDOMAIN/jsonrpc?request=
{"jsonrpc": "2.0", "method": "VideoLibrary.GetMovies", "params": { "filter": {"field": "playcount", "operator": "is", "value": "0"}, "limits": { "start" : 0, "end": 75 }, "properties" : ["art", "rating", "thumbnail", "playcount", "file"], "sort": { "order": "ascending", "method": "label", "ignorearticle": true } }, "id": "libMovies"}
How can I parse result in swift?

Answer 1

Use Codable to parse JSON. Try with your demo input.
import UIKit
class ViewController: UIViewController {
#IBOutlet weak var myView: UIView!
override func viewDidLoad() {
super.viewDidLoad()
let someString = """
{"jsonrpc": "2.0", "method": "VideoLibrary.GetMovies", "params": { "filter": {"field": "playcount", "operator": "is", "value": "0"}, "limits": { "start" : 0, "end": 75 }, "properties" : ["art", "rating", "thumbnail", "playcount", "file"], "sort": { "order": "ascending", "method": "label", "ignorearticle": true } }, "id": "libMovies"}
"""
let data = someString.data(using: .utf8)!
do{
let jsonDataModels = try JSONDecoder().decode(JSONDataModel.self, from: data)
print(String(data: data, encoding: .utf8)!)
print("jsonDataModels: \(jsonDataModels)")
}catch {
print(error)
}
}
}
// This file was generated from JSON Schema using quicktype, do not modify it directly.
// To parse the JSON, add this file to your project and do:
//
// let jSONDataModel = try? newJSONDecoder().decode(JSONDataModel.self, from: jsonData)
import Foundation
// MARK: - JSONDataModel
struct JSONDataModel: Codable {
let jsonrpc, method: String
let params: Params
let id: String
}
// MARK: - Params
struct Params: Codable {
let filter: Filter
let limits: Limits
let properties: [String]
let sort: Sort
}
// MARK: - Filter
struct Filter: Codable {
let field, filterOperator, value: String
enum CodingKeys: String, CodingKey {
case field
case filterOperator = "operator"
case value
}
}
// MARK: - Limits
struct Limits: Codable {
let start, end: Int
}
// MARK: - Sort
struct Sort: Codable {
let order, method: String
let ignorearticle: Bool
}
Another example tries with API call.
import UIKit
import Foundation
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
let url = URL(string: "https://jsonplaceholder.typicode.com/users")!
let task = URLSession.shared.dataTask(with: url) {(data, response, error) in
guard let data = data else { return }
do{
let jsonDataModels = try JSONDecoder().decode([JSONDataModel].self, from: data)
print(String(data: data, encoding: .utf8)!)
print("jsonDataModels: \(jsonDataModels)")
}catch{}
}
task.resume()
}
}
struct JSONDataModel: Codable {
let id: Int
let name, username, email: String
let address: Address
let phone, website: String
let company: Company
}
struct Address: Codable {
let street, suite, city, zipcode: String
let geo: Geo
}
struct Geo: Codable {
let lat, lng: String
}
struct Company: Codable {
let name, catchPhrase, bs: String
}