[Swift] URL, URLComponents

URL

---

let urlString = "https://ios-development.tistory.com/search/users?id=123&age=20"
let url = URL(string: urlString)

/// 주소 전체 "https://ios-development.tistory.com/search/users?id=123&age=20"
print(url?.absoluteURL)
/// 어떤식으로 네트워킹 하는지 "https"
print(url?.scheme)
/// baseURL과 같이 메인 주소 "ios-development.tistory.com"
print(url?.host)
/// host뒤에 query parameter를 제외한 주소 "/search/users"
print(url?.path)
/// query parameter 값 "id=123&age=20"
print(url?.query)
/// 설정하지 않으면 디폴트는 nil
print(url?.baseURL)

let url = "https://api.openweathermap.org/data/2.5/forecast"
let param = ["lat" : "\(latitude)",
         "lon" : "\(longitude)",
         "appid" : weatherAPIKey,
         "lang" : "kr",
         "cnt" : "10",
         "units" : "metric"
]

AF.request(url, method: .get, parameters: param)
.responseData(completionHandler: { response in
    switch response.result{
    case let .success(data):
        do{
            let decoder = JSONDecoder()
            let result = try decoder.decode(WeatherInfomation.self, from: data)
            completionHandler(.success(result))
        }
        catch{
            completionHandler(.failure(error))
        }
    case let .failure(error):
        completionHandler(.failure(error))

    }
}).resume()

 

URLComponents

---

// https://ios-development.tistory.com/search/users?id=123&age=20
var urlComponents = URLComponents(string: "https://ios-development.tistory.com/search/users?")

// query 설정
let userIDQuery = URLQueryItem(name: "id", value: "123")
let ageQuery = URLQueryItem(name: "age", value: "20")
urlComponents?.queryItems?.append(userIDQuery)
urlComponents?.queryItems?.append(ageQuery)

/// 전체 경로 (문자열이 아닌 형태) https://ios-development.tistory.com/search/users?id=123&age=20
print(urlComponents?.url)
/// "https://ios-development.tistory.com/search/users?id=123&age=20"
print(urlComponents?.string)
/// [id=123, age=20]
print(urlComponents?.queryItems)

static let scheme = "https"
static let host = "dapi.kakao.com"
static let path = "/v2/search/"

func searchBlog(query: String) -> URLComponents {
    var components = URLComponents()
    components.scheme = SearchBlogAPI.scheme
    components.host = SearchBlogAPI.host
    components.path = SearchBlogAPI.path + "blog"

    components.queryItems = [
        URLQueryItem(name: "query", value: query),
        URLQueryItem(name: "size", value: "25")
    ]

    return components
}