Alamofire multipartFormData using [String : Any] parameters - ios

Question

Hello I am trying to post a parameter and/or image.
My parameter is a [String : Any] with string, date, int, values.
When I post only a parameter I use URLEncoding.default encoding. However when I need to post both parameter and image I use multipartFormData.
My code is below
if url == ""{
AF.upload(multipartFormData: { multipartFormData in
for (key,value) in parameters {
multipartFormData.append((value as! String).data(using: .utf8)!, withName: key)
}
let jpegData = art!.jpegData(compressionQuality: 1.0)
multipartFormData.append(Data((jpegData)!), withName: "photo")
}, to: "\(NetworkManager.rootURL)/api/add/")
.responseJSON { response in
debugPrint(response)
}
}else{
AF.request("\(NetworkManager.rootURL)/api/add/", method: .post, parameters: parameters, encoding: URLEncoding.default, headers: nil).response { (reponse) in
let status = reponse.response!.statusCode
if status == 200{
completion(200)
}else{
completion(401)
}
}
}
My problem is that because my parameter is a any with string date int values I get a
Could not cast value of type 'Swift.Int' (0x1c3f1f1e8) to 'Swift.String' (0x1c3f21390). Is there any workaround for this? or do I have to change everything to string...
Any help is appreciated

Answer 1

You need to path any value as a String for this to work as it's the only way to transfer it to Data , some others use
for (key, value) in parameters {
multipartFormData.append((value as AnyObject).data(using: String.Encoding.utf8.rawValue)!, withName: key)
}

Answer 2

I have maked block function for Upload image with parameter to Server Using Multipart
//Here strUrl = YOUR WEBSERVICE URL
//postParam = post Request parameter i.e.
//let postParam : [String : Any] = [first_name : "name"]
//imageArray = image upload array i.e.
//var imageArray : [[String:Data]] = [["image_name" : YOUR IMAGE DATA]]
func postImageRequestWithURL(withUrl strURL: String,withParam postParam: Dictionary<String, Any>,withImages imageArray:[[String:Data]], completion:#escaping (_ isSuccess: Bool, _ response:NSDictionary) -> Void)
{
let requetURL = strURL
Alamofire.upload(multipartFormData: { (MultipartFormData) in
for (imageDic) in imageArray
{
for (key,value) in imageDic
{
MultipartFormData.append(value, withName:key,fileName: "file.jpg", mimeType: "image/jpg")
}
}
for (key, value) in postParam
{
MultipartFormData.append("\(value)".data(using: .utf8)!, withName: key)
// MultipartFormData.append(value, withName: key)
}
}, usingThreshold: UInt64.init(), to: requetURL, method: .post, headers: ["Accept": "application/json"]) { (result) in
switch result {
case .success(let upload, _, _):
upload.uploadProgress(closure: { (progress) in
print("Upload Progress: \(progress.fractionCompleted)")
})
upload.responseJSON { response in
let desiredString = NSString(data: response.data!, encoding: String.Encoding.utf8.rawValue)
print("Response ====================")
print(desiredString!)
if let json = response.result.value as? NSDictionary
{
if response.response?.statusCode == 200
|| response.response?.statusCode == 201
|| response.response?.statusCode == 202
{
completion(true,json);
}
else
{
completion(false,json);
}
}
else
{
completion(false,[:]);
}
}
case .failure(let encodingError):
print(encodingError)
completion(false,[:]);
}
}
}
You can also upload multiple image using this
I Hope this will help...