Swift 中使用 PATCH 的带有正文的 HTTP 请求

Question

我正在尝试发送带有序列化 JSON 正文的补丁请求。

由于某种原因，服务器无法正确接收正文。感觉PATCH方法结合http请求体好像有问题

    let sessionConfig = NSURLSessionConfiguration.defaultSessionConfiguration()
    let session = NSURLSession(configuration: sessionConfig, delegate: nil, delegateQueue: nil)

    var URL = B2MFetcher.urlForBooking(event.unique, bookingID: booking.unique)
    let request = NSMutableURLRequest(URL: URL)
    request.HTTPMethod = "PATCH"

    // Headers
    println(token)
    request.addValue(token, forHTTPHeaderField: "Authorization")
    request.addValue("gzip, identity", forHTTPHeaderField: "Accept-Encoding")

    // JSON Body
    let bodyObject = [
        "op": "cancel"
    ]
    var jsonError: NSError?
    request.HTTPBody = NSJSONSerialization.dataWithJSONObject(bodyObject, options: nil, error: &jsonError)

    /* Start a new Task */
    let task = session.dataTaskWithRequest(request, completionHandler: { (data : NSData!, response : NSURLResponse!, error : NSError!) -> Void in
        completion(data: data, response:response , error: error)
    })
    task.resume()

Answer 1

您可以尝试在请求中添加 Content-Type header：

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

或使用其他 JSON Content-Type 格式之一描述 here。

我用 ExpressJS 服务器测试了它，没有 Content-Type header 服务器得到一个空的 body，但是有 Content-Type header效果不错。

Answer 2

在 swift 3/4 中：

 let request = NSMutableURLRequest(url: NSURL(string: "http://XXX/xx/xxx/xx")! as URL)
        request.httpMethod = "PATCH"
        request.addValue("application/json", forHTTPHeaderField: "Content-Type")
        do{

           let json: [String: Any] = ["status": "test"]
           let jsonData = try? JSONSerialization.data(withJSONObject: json)
            request.httpBody = jsonData
            print("jsonData: ", String(data: request.httpBody!, encoding: .utf8) ?? "no body data")
        } catch {
            print("ERROR")
        }

        let task = URLSession.shared.dataTask(with: request as URLRequest) {
            data, response, error in

            if error != nil {
                print("error=\(error)")
                completion(false)
                return
            }

            let responseString = NSString(data: data!, encoding:            String.Encoding.utf8.rawValue)
            print("responseString = \(responseString)")
            completion(true)
            return
        }
        task.resume()

Answer 3

不使用补丁的简单方法 HTTPBody

如果你只想使用补丁，你只需要更改特定用户的名称的值，那么它就像：

let myurl = URL(string: "https://gorest.co.in/public-api/users/"+"\(id)?"+"name=abc")!

var request = URLRequest(url:myurl)
request.addValue("Bearer yourAuthorizationToken",forHTTPHeaderField:"Authorization")
request.httpMethod = "PATCH"

let dataTask = URLSession.shared.dataTask(with: request)
dataTask.resume()

注意：此处"id"将是userId

Swift 中使用 PATCH 的带有正文的 HTTP 请求

HTTP Request with Body using PATCH in Swift

rest

patch

http

ios

swift