How to return object from nested json - json

Question

I have nested JSON and I'm trying to return an object and update UI. However, I can access properties only from Result array, but can't reach Step from AnalyzedInstactions.
Here are classes that represent data in the JSON. Generated it with https://app.quicktype.io
import UIKit
class ResultArray: Codable {
var results = [Result]()
}
class Result: Codable, CustomStringConvertible {
var title: String = ""
var image = ""
var readyInMinutes: Int? = 0
var servings: Int? = 0
var cuisines = [String]()
var dishTypes = [String]()
var diets = [String]()
var occasions = [String]()
var analyzedInstructions = [AnalyzedInstruction]()
var description: String {
return "\nResults - Name: \(title), Summary: \(String(describing: readyInMinutes ?? nil)), \(String(describing: servings ?? nil)) "
}
}
// MARK: - Steps
class AnalyzedInstruction: Codable {
var name: String? = ""
var steps = [Step]()
}
class Step: Codable {
var number: Int = 0
var step: String = ""
}
Here is my parse method
private func parse(data: Data) -> [Result] {
do {
let decoder = JSONDecoder()
let result = try decoder.decode(ResultArray.self, from: data)
return result.results
} catch {
print("JSON Error: \(error)")
return []
}
}

Answer 1

try this simple code to access your steps from AnalyzedInstructions:
let results: [Result] = parse(data: theData)
if let firstResult = results.first {
if let firstAnaInst = firstResult.analyzedInstructions.first {
for step in firstAnaInst.steps {
print("--> step.step: \(step.step) step.number: \(step.number)")
}
} else { print(" NO analyzedInstructions") }
} else { print(" NO results") }
if you want all steps:
for result in results {
for anaInst in result.analyzedInstructions {
for step in anaInst.steps {
print("--> step.step: \(step.step) step.number: \(step.number)")
}
}
}
PS: if appropriate, you may consider using struct instead of class for your json models.