Swift 3.0 으로 변하면서 NS라는 Prefix 명들이 모두 사라져서 깔끔해 진 느낌인데 여러가지로 API도 바뀌어서 매우 혼동이 됩니다.

그래서 특히 많이 사용하는 HTTP request를  정리해 보았습니다.

 

import Foundation

 

class Request {

    let session: URLSession = URLSession.shared

    

    // GET METHOD

    func get(url: URL, completionHandler: @escaping (Data?, URLResponse?, Error?) -> Void) {

        var request: URLRequest = URLRequest(url: url)

        

        request.httpMethod = "GET"

        request.addValue("application/json", forHTTPHeaderField: "Accept")

        session.dataTask(with: request, completionHandler: completionHandler).resume()

    }

    

    // POST METHOD

    func post(url: URL, body: NSMutableDictionary, completionHandler: @escaping (Data?, URLResponse?, Error?) -> Void) throws {

        var request: URLRequest = URLRequest(url: url)

        

        request.httpMethod = "POST"

        request.addValue("application/json", forHTTPHeaderField: "Content-Type")

        request.addValue("application/json", forHTTPHeaderField: "Accept")

        request.httpBody = try JSONSerialization.data(withJSONObject: body, options: JSONSerialization.WritingOptions.prettyPrinted)

        

        session.dataTask(with: request, completionHandler: completionHandler).resume()

    }

    

    // PUT METHOD

    func put(url: URL, body: NSMutableDictionary, completionHandler: @escaping (Data?, URLResponse?, Error?) -> Void) throws {

        var request: URLRequest = URLRequest(url: url)

        

        request.httpMethod = "PUT"

        request.addValue("application/json", forHTTPHeaderField: "Content-Type")

        request.addValue("application/json", forHTTPHeaderField: "Accept")

        request.httpBody = try JSONSerialization.data(withJSONObject: body, options: JSONSerialization.WritingOptions.prettyPrinted)

        session.dataTask(with: request, completionHandler: completionHandler).resume()

    }

    

    // PATCH METHOD

    func patch(url: URL, body: NSMutableDictionary, completionHandler: @escaping (Data?, URLResponse?, Error?) -> Void) throws {

        var request: URLRequest = URLRequest(url: url)

        

        request.httpMethod = "PATCH"

        request.addValue("application/json", forHTTPHeaderField: "Content-Type")

        request.addValue("application/json", forHTTPHeaderField: "Accept")

        request.httpBody = try JSONSerialization.data(withJSONObject: body, options: JSONSerialization.WritingOptions.prettyPrinted)

        session.dataTask(with: request, completionHandler: completionHandler).resume()

    }

    

    // DELETE METHOD

    func delete(url: URL, completionHandler: @escaping (Data?, URLResponse?, Error?) -> Void) {

        var request: URLRequest = URLRequest(url: url)

        

        request.httpMethod = "DELETE"

        request.addValue("application/json", forHTTPHeaderField: "Accept")

        session.dataTask(with: request, completionHandler: completionHandler).resume()

    }

 

}

 

 

 

사용예

 

let request: Request = Request()

 

let url: URL = URL(string: "https://api.example.com/path/to/resource")!

let body: NSMutableDictionary = NSMutableDictionary()

body.setValue("value", forKey: "key")

 

try request.post(url: url, body: body, completionHandler: { data, response, error in

    // code

 

})