第三方api JSON抓取練習-Random

用 playground練習

Random User Generator

https://randomuser.me/
這個網頁是隨機用戶產生器

一次取十個用戶
https://randomuser.me/api/?results=10

連結到上列網址會出現一個json檔案

將內容 copy 到這個網頁來看它的階層

第一層

struct First: Codable {
    let results: []
}

第二層

我選 gender name email phone

struct Second: Codable {
    let gender: String
    let name: []
    let email: String
    let phone: String
}

let name: []是另外一層，所以暫時給它個[ ]

第三層
這一層是要解 name

struct ThirdName: Codable {
    let title: String
    let first: String
    let last: String
}

第三層寫好之後，要記得將第三層的ThirdName改到第二層的 name

name: []的中括號不需要，因為name包的是大括號
而 results: [Second]要加中括號，是因為它的資料是用 [ ]包起來

struct First: Codable {
    let results: [Second]
}

struct Second: Codable {
    let gender: String
    let name: ThirdName
    let email: String
    let phone: String
}

struct ThirdName: Codable {
    let title: String
    let first: String
    let last: String
}

解析資料

我想抓的資料是 firstname 跟 lestname

struct First: Codable {
    let results: [Second]
}

struct Second: Codable {
    let gender: String
    let name: ThirdName
    let email: String
    let phone: String
}

struct ThirdName: Codable {
    let title: String
    let first: String
    let last: String
}

let urlString = "https://randomuser.me/api/?results=10"

if let url = URL(string: urlString) {
    URLSession.shared.dataTask(with: url){
        data, response, error in
        if let data{
            let decode = JSONDecoder()
            do {
                let first = try decode.decode(First.self, from: data)
                let itemSecond = first.results[0]
                print(itemSecond.name.first, itemSecond.name.last)
            } catch  {
                print(error)
            }
        }
    }.resume()
}

練習檔案

0929jsonDemo-Random