How to parse and save all items in an array(s)?

[amirt]

I’m parsing data from a source that’s structured like this:

I’m able to parse all data within the array, but how can I save all items of the parsed array to save into Firestore? This is what I have right now:

let decoder = JSONDecoder()
                    let recipeToDisplay = try decoder.decode(Recipe.self, from: data!) // Issue that there is no @DocumentID from Spoonacular?
                    
                    let uuid = UUID().uuidString
                    
                    SourceToFirestoreService.createRecipe(
                        docId:uuid,
                        instructionsAnalyzedName: recipeToDisplay.analyzedInstructions?[0].name ?? "",
                        instructionsAnalyzedStepsNumber: recipeToDisplay.analyzedInstructions?[0].steps[0]?.number ?? 0,
                        instructionsAnalyzedStepsStep: recipeToDisplay.analyzedInstructions?[0].steps[0]?.step ?? ""
                    ) { recipeURL in
                        print("success")
                    }

class SourceToFirestoreService {
    
    static func createRecipe(
                             instructionsAnalyzedName:String,
                             instructionsAnalyzedStepsNumber:Int,
                             instructionsAnalyzedStepsStep:String,
                             completion: @escaping (Recipe?) -> Void) {
        
        let db = Firestore.firestore()
        
        db.collection("recipes").document(docId).setData(
            [
             "analyzedInstructions": [
                ["name": instructionsAnalyzedName,
                 "steps": [
                    ["number": instructionsAnalyzedStepsNumber,
                    "step": instructionsAnalyzedStepsStep],
                    ],
                ],
             ],
            ]) { (error) in
             }
    }
}

As you can see, I’m specifying the array index in recipeToDisplay.analyzedInstructions?[0].name, recipeToDisplay.analyzedInstructions?[0].steps[0]?.number, and recipeToDisplay.analyzedInstructions?[0].steps[0]?.step. But what if I want to parse every item in those arrays and save to Firestore?

Any guidance is much appreciated!