如何构建包含段落的可下载内容包？

Question

I am making a flash cards app. Each flash card has the following - a topic - a question - an answer

The answer can be multiple paragraphs like a short article.

For example: topic: nutrition question: What is paleo? answer: Paleo is a low carb diet. \\n It relies on specific meats and vegetables as the staple of the diet. You cannot eat bread on paleo.

CSV doesn't seem like an option unless I sub out the \\n for something like ~~

The paragraph may have quotes in it as well. I would like to be able to download a pack of flashcards for offline use so just pulling from a database wouldn't be ideal for this.

Is there a good format/structure I can use to bundle up a pack of flashcards for easy download/parsing/saving on the local system?

Answer 1

You could represent your data as follows:

struct Card: Codable {
    let topic: String
    let question: String
    let answer: String
}

Then if you have an array let card = [Card] you can convert to JSON using a JSONEncoder and from JSON to Card using JSONDecoder

let cards = [Card(topic: "Nutrition", question: "What is paleo?", answer: "Paleo is a low carb diet.\nIt relies on specific meats and vegetables as the staple of the diet. You cannot eat bread on paleo.")]

let data = try JSONEncoder().encode(cards)

let string = String(data: data, encoding: .utf8)!

print(string)

// [{"topic":"Nutrition","question":"What is paleo?","answer":"Paleo is a low carb diet.\nIt relies on specific meats and vegetables as the staple of the diet. You cannot eat bread on paleo."}]

let newCards = try JSONDecoder().decode([Card].self, from: data)