在 iOS Swift 中使用 Alamofire 使用 MultipartFormData 发送 POST 参数 [英] Send POST parameters with MultipartFormData using Alamofire, in iOS Swift

问题描述

我第一次使用 Alamofire.我使用的是最新版本的 Alamofire 1.3.1.我想在一个 API 调用中发送一张图片、一个视频和一些 POST 参数.我正在使用多部分表单数据.mutipart 模块正在工作.我在发送额外的 POST 参数params 时遇到问题.下面是我的代码.params"是包含额外参数的字典吗?如何在请求中附加这些 POST 参数.请帮忙

I am using Alamofire, very first time. I am using the latest version Alamofire 1.3.1. I want to send one image , one video and some POST parameters in one API call. I am using multipart form data. The mutipart module is working. I am facing a problem to send extra POST parametersparams . Below is my code. "params" is the dictionary which contains extra parameters? How can I append these POST parameters in the request. Please help

        var fullUrl :String = Constants.BASE_URL + "/api/CompleteChallenge"
         var params = [
        "authKey": Constants.AuthKey,
        "idUserChallenge": "16",
        "comment": "",
        "photo": imagePath,
        "video": videoPath,
        "latitude": "1",
        "longitude": "1",
        "location": "india"
    ]

    let imagePathUrl = NSURL(fileURLWithPath: imagePath!)
    let videoPathUrl = NSURL(fileURLWithPath: videoPath!)

        Alamofire.upload(
        .POST,
        URLString: fullUrl, // http://httpbin.org/post
        multipartFormData: { multipartFormData in
            multipartFormData.appendBodyPart(fileURL: imagePathUrl!, name: "photo")
            multipartFormData.appendBodyPart(fileURL: videoPathUrl!, name: "video")
        },
        encodingCompletion: { encodingResult in
            switch encodingResult {
            case .Success(let upload, _, _):
                upload.responseJSON { request, response, JSON, error in

                  }
                }
            case .Failure(let encodingError):

            }
        }
    )

推荐答案

我终于找到了解决方案 :)

I found the solution :) finally.

我们可以在请求中附加数据作为 multipartformdata.

We can append data in the request as multipartformdata.

下面是我的代码.

  Alamofire.upload(
        .POST,
        URLString: fullUrl, // http://httpbin.org/post
        multipartFormData: { multipartFormData in
            multipartFormData.appendBodyPart(fileURL: imagePathUrl!, name: "photo")
            multipartFormData.appendBodyPart(fileURL: videoPathUrl!, name: "video")
            multipartFormData.appendBodyPart(data: Constants.AuthKey.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"authKey")
            multipartFormData.appendBodyPart(data: "(16)".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"idUserChallenge")
            multipartFormData.appendBodyPart(data: "comment".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"comment")
            multipartFormData.appendBodyPart(data:"(0.00)".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"latitude")
            multipartFormData.appendBodyPart(data:"(0.00)".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"longitude")
            multipartFormData.appendBodyPart(data:"India".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"location")
        },
        encodingCompletion: { encodingResult in
            switch encodingResult {
            case .Success(let upload, _, _):
                upload.responseJSON { request, response, JSON, error in


                }
            case .Failure(let encodingError):

            }
        }
    )

EDIT 1: 对于那些试图发送数组而不是 float、int 或 string 的人，他们可以将他们的数组或任何类型的数据结构转换为 Json 字符串，传递这个 JSON 字符串作为普通字符串.并在后端解析此json字符串以获取原始数组

EDIT 1: For those who are trying to send an array instead of float, int or string, They can convert their array or any kind of data-structure in Json String, pass this JSON string as a normal string. And parse this json string at backend to get original array

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