小编Sae*_*eed的帖子

我想使用某个 URL 端点将图像文件上传到后端服务器。我可以使用 Alamofire 的上传请求作为 multipartFormData 轻松做到这一点。但是我想摆脱 Alamofire 以尽量减少对第三方框架的依赖。这是 Alamofire 代码，它有效：

func uploadRequestAlamofire(parameters: [String: Any], imageData: Data?, completion: @escaping(CustomError?) -> Void ) {

let url = imageUploadEndpoint!

let headers: HTTPHeaders = ["X-User-Agent": "ios",
                            "Accept-Language": "en",
                            "Accept": "application/json",
                            "Content-type": "multipart/form-data",
                            "ApiKey": KeychainService.getString(by: KeychainKey.apiKey) ?? ""]

Alamofire.upload(multipartFormData: { (multipartFormData) in
    for (key, value) in parameters {
        multipartFormData.append("\(value)".data(using: String.Encoding.utf8)!, withName: key as String)
    }

    if let data = imageData {
        multipartFormData.append(data, withName: "file", fileName: "image.png", mimeType: "image/jpg")
    }

}, usingThreshold: UInt64.init(), to: url, …