Multiple image upload in single Request using AFNetworking - ios5

Question

I want to upload multiple image in single request, I manage to make it work when sending single image data. here is my code for sending single image data :
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseUrl: my_url ];
NSMutableRequest *request = [httpClient multipartFormRequestWithMethod:#"POST" path:nil
parameters:nil constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
[formData appendPartWithFileData: my_imageData name:#"image" fileName: #"myImage.jpg" mimeType:#"image/jpeg"];
}];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest: request];
[operation start];
on the server side, I use Spring MVC. this is the Web service/ end point that will receive the request that contains multiple image:
#RequestMapping(value="/test-multiple-upload/{collateralid}", method = RequestMethod.POST)
public #ResponseBody String multipartfilesUpload(
#PathVariable("collateralid") Long collId,
#RequestParam("images[]") CommonsMultipartFile[] images) {
//proccess the image data. save to local or to DB
return "uploaded successful";
}
My question is how to make the multipartForm request using AFNetworking with multiple image.

Answer 1

I found out that by using the same name of appended data will make the data as Array in server side. therefore:
NSArray *imageArray;
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseUrl: my_url ];
NSMutableRequest *request = [httpClient multipartFormRequestWithMethod:#"POST" path:nil
parameters:nil constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
for(UIImage *img in imageArray)
{
[formData appendPartWithFileData: my_imageData name:#"image" fileName:#"myImage.jpg" mimeType:#"image/jpeg"];
}
}];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest: request];
[operation start];
considering every imageData will be appended in form data multipart request with the same name tags as "image".
On server side it'll be handled as array, "CommonsMultipartFile[] image" .