在ios swift中使用alamofire 5上传带有multipartformdata参数的文件

Question

我正在尝试上传带有参数的文件（multipartformdata），但我无法使用新版本的 Alamofire 5 上传文件，如果您对 Alamofire 5 有一些经验，请与我分享。

 func uploadPluckImage(imgData : Data, imageColumnName : String,  url:String,httpmethod:HTTPMethod,completionHandler: @escaping (NSDictionary?, String?) -> ()){
    let token = UserDefaults.standard.string(forKey: PrefKeys.loginToken) ?? ""
    let authorization = ["Authorization" : "Bearer \(token)"]
    let parameters: Parameters?
    parameters = [
        "garbageCollector": 0,
        "stuff_uuid": "2b4b750a-f4a6-4d61-84ce-7c42b5c030ee",
        "delete_file" : ""
    ]
    let headers : HTTPHeader?
    headers = ["Authorization" : "Bearer \(token)"]
    let imageURl = "http://68.183.152.132/api/v1/stuff/uploader"


    AF.upload(multipartFormData: { (multipart: MultipartFormData) in
        let imageData = self.firstImage.image?.jpegData(compressionQuality: 0.7)
            multipart.append(imageData, withName: "file", fileName: "file.png", mimeType: "image/png")

        for (ker, value) in parameters!{
            multipart.append(value as! String).data(using: .utf8)!, withName: key)
        }
    },usingThreshold: UInt64.init(),
       to: imageURl,
       method: .post,
       headers: headers,
       encodingCompletion: { (result) in
        switch result {
        case .success(let upload, _, _):
            upload.uploadProgress(closure: { (progress) in
              print("Uploading")
            })
            break
        case .failure(let encodingError):
            print("err is \(encodingError)")
                break
            }
        })
}

Answer 1

Alamofire 5 中的上传方法略有变化

func upload(image: Data, to url: Alamofire.URLRequestConvertible, params: [String: Any]) {
    AF.upload(multipartFormData: { multiPart in
        for (key, value) in params {
            if let temp = value as? String {
                multiPart.append(temp.data(using: .utf8)!, withName: key)
            }
            if let temp = value as? Int {
                multiPart.append("\(temp)".data(using: .utf8)!, withName: key)
            }
            if let temp = value as? NSArray {
                temp.forEach({ element in
                    let keyObj = key + "[]"
                    if let string = element as? String {
                        multiPart.append(string.data(using: .utf8)!, withName: keyObj)
                    } else
                        if let num = element as? Int {
                            let value = "\(num)"
                            multiPart.append(value.data(using: .utf8)!, withName: keyObj)
                    }
                })
            }
        }
        multiPart.append(image, withName: "file", fileName: "file.png", mimeType: "image/png")
    }, with: url)
        .uploadProgress(queue: .main, closure: { progress in
            //Current upload progress of file 
            print("Upload Progress: \(progress.fractionCompleted)")
        })
        .responseJSON(completionHandler: { data in
            //Do what ever you want to do with response
        })
}

希望能帮到你

编辑：如果你不太明白上面的内容，这里是一个扩展：

let uploadRequest: UploadRequest = AF.upload(multipartFormData: multipartFormData, with: ...)
let completionHander: (AFDataResponse<Any>) -> Void) = { result in
    //Do what ever you want to do with response, which is a DataResponse<Success, AFError>
}
// Adds that completion hander to the UploadRequest
uploadRequest.responseJSON(completionHandler: completionHander)

Answer 2

这就是我使用 Alamofire 5 从 swift 5 应用程序上传图像和视频的方式。

图片

    /**
     Send Image to server
     */

    func Post(imageOrVideo : UIImage?){  

    let headers: HTTPHeaders = [
        /* "Authorization": "your_access_token",  in case you need authorization header */
        "Content-type": "multipart/form-data"
    ]


        AF.upload(
            multipartFormData: { multipartFormData in
                multipartFormData.append(imageOrVideo!.jpegData(compressionQuality: 0.5)!, withName: "upload_data" , fileName: "file.jpeg", mimeType: "image/jpeg")
        },
            to: "http://ip.here.--.--/new.php", method: .post , headers: headers)
            .response { resp in
                print(resp)               

        }
}

您可以创建临时资源并使用临时 url（适用于视频）：

/**
 Send video to server
 */
func PostVideoUrl(url : URL){

    let headers: HTTPHeaders = [
        "Content-type": "multipart/form-data"
    ]        

    AF.upload(
        multipartFormData: { multipartFormData in
            multipartFormData.append(url, withName: "upload_data" , fileName: "movie.mp4", mimeType: "video/mp4")
    },
        to: "http://ip.here.--.--/newVideo.php", method: .post , headers: headers)
        .response { resp in
            print(resp)

    }

}