Upload multiple images in one request - ios

Question

I want to upload more than one image in single service request. How can I do that. As of now I am able to upload single image like as
NSData *imageData = UIImageJPEGRepresentation(image, 90);
NSString *boundary = #"---------------------------14737809831466499882746641449";
NSString *contentType = [NSString stringWithFormat:#"multipart/form-data; boundary=%#",boundary];
NSMutableData *postBody = [NSMutableData data];
// file
[postBody appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[[NSString stringWithString:[NSString stringWithFormat:#"Content-Disposition: form-data; name=\"files\"; filename=\”%#\”\r\n”,#“imagename”]] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[#"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[NSData dataWithData:imageData]];
[postBody appendData:[[NSString stringWithFormat:#"\r\n--%#--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[#"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
Now I want to upload two images to server how can I do that.

Answer 1

Your answer is here. It's tested and I am using this below methods to upload multiple image along with other parameters.
- (void)uploadMultipleImageInSingleRequest
{
NSString *returnString;
NSDictionary *aParametersDic; // It's contains other parameters.
NSDictionary *aImageDic; // It's contains multiple image data as value and a image name as key
NSString *urlString; // an url where the request to be posted
NSURL *url = [NSURL URLWithString:urlString];
NSMutableURLRequest *request= [[NSMutableURLRequest alloc] initWithURL:url] ;
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:#"POST"];
NSString *boundary = #"---------------------------14737809831466499882746641449";
NSString *contentType = [NSString stringWithFormat:#"multipart/form-data; boundary=%#",boundary];
[request addValue:contentType forHTTPHeaderField: #"Content-Type"];
NSMutableData *postbody = [NSMutableData data];
NSString *postData = [self getHTTPBodyParamsFromDictionary:aParametersDic boundary:boundary];
[postbody appendData:[postData dataUsingEncoding:NSUTF8StringEncoding]];
[aImageDic enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
if(obj != nil)
{
[postbody appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[postbody appendData:[[NSString stringWithFormat:#"Content-Disposition: form-data; name=\"PostedImage\"; filetype=\"image/png\"; filename=\"%#\"\r\n", key] dataUsingEncoding:NSUTF8StringEncoding]];
[postbody appendData:[#"Content-Type: image/jpeg\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[postbody appendData:[NSData dataWithData:obj]];
}
}];
[postbody appendData:[[NSString stringWithFormat:#"\r\n--%#--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPBody:postbody];
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
}
.
-(NSString *) getHTTPBodyParamsFromDictionary: (NSDictionary *)params boundary:(NSString *)boundary
{
NSMutableString *tempVal = [[NSMutableString alloc] init];
for(NSString * key in params)
{
[tempVal appendFormat:#"\r\n--%#\r\n", boundary];
[tempVal appendFormat:#"Content-Disposition: form-data; name=\"%#\"\r\n\r\n%#",key,[params objectForKey:key]];
}
return [tempVal description];
}

Answer 2

One option use AFNetworking to upload multiple images
//create image data
UIImage *image = ......
NSData *imageData = UIImageJPEGRepresentation(image, 0.5);
UIImage *image2 = ......
NSData *imageData2 = UIImageJPEGRepresentation(image2, 0.5);
//Now add to array and also create array of images data
NSArray *arrImagesData = [NSArray arrayWithObjects:imageData,imageData2,nil];
//Create manager
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
//parameters if any
NSDictionary *parameters = .......
//Now post
[manager POST:#"your url here" parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
//add img data one by one
for(int i=0; i<[arrImagesData count];i++)
{
NSData *imageData = arrImagesData[i];
NSString *strName = [NSString stringWithFormat:#"name%d",i]
[formData appendPartWithFormData:imageData name:strName];
}
} success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"Success: %#", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];

Answer 3

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setHTTPShouldHandleCookies:NO];
[request setTimeoutInterval:60];
[request setHTTPMethod:#"POST"];
NSString *boundary = #"------VohpleBoundary4QuqLuM1cE5lMwCy";
NSString *contentType = [NSString stringWithFormat:#"multipart/form-data; boundary=%#", boundary];
[request setValue:contentType forHTTPHeaderField: #"Content-Type"];
NSMutableData *body = [NSMutableData data];
NSMutableDictionary *parameters = [[NSMutableDictionary alloc] init];
[parameters setValue:#"IOS Testing" forKey:#"subject"];
[parameters setValue:#"Message" forKey:#"message"];
for (NSString *param in parameters) {
[body appendData:[[NSString stringWithFormat:#"--%#\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"Content-Disposition: form-data; name=\"%#\"\r\n\r\n", param] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"%#\r\n", [parameters objectForKey:param]] dataUsingEncoding:NSUTF8StringEncoding]];
}
NSMutableArray *multipleArray=[[NSMutableArray alloc] init];
[multipleArray addObject:[UIImage imageNamed:#"images.jpeg"]];
[multipleArray addObject:[UIImage imageNamed:#"pic3.png"]];
for (int i=0; i<multipleArray.count;i++ )
{
NSData *imageData;
imageData = UIImageJPEGRepresentation([multipleArray objectAtIndex:i], 1.0);
if (imageData)
{
[body appendData:[[NSString stringWithFormat:#"--%#\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"Content-Disposition: form-data; name=\"%#\"; filename=\"image.jpg\"\r\n", #"uploaded_file[]"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"Content-Type:image/jpeg\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:imageData]];
[body appendData:[[NSString stringWithFormat:#"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
}
else
{
[body appendData:[[NSString stringWithFormat:#"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
}
}
[body appendData:[[NSString stringWithFormat:#"--%#--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPBody:body];
[request setURL:[NSURL URLWithString:BASEURL]];
[NSURLConnection sendAsynchronousRequest:request
queue:[NSOperationQueue mainQueue]
completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
NSHTTPURLResponse* httpResponse = (NSHTTPURLResponse*)response;
if ([httpResponse statusCode] == 200) {
NSLog(#"success");
}
}];
}

Answer 4

#define kStartTag #"--%#\r\n"
#define kEndTag #"\r\n"
#define kContent #"Content-Disposition: form-data; name=\"%#\"\r\n\r\n"
#define kBoundary #"---------------------------14737809831466499882746641449"
-(void)uploadImageonServers
{
NSMutableURLRequest *request = nil;
NSLog(#"image upload");
NSMutableData *body = [NSMutableData data];
request = [[NSMutableURLRequest alloc] init];
NSString *requestURL = [NSString stringWithFormat:#"http://192.168.1.101/gmento/index.php/api/professional/addServices"];
[request setURL:[NSURL URLWithString:requestURL]];
[request setHTTPMethod:#"POST"];
NSString *contentType = [NSString stringWithFormat:#"multipart/form-data; boundary=%#",kBoundary];
[request addValue:contentType forHTTPHeaderField: #"Content-Type"];
// user ID parameter
[body appendData:[[NSString stringWithFormat:kStartTag, kBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:kContent, #"professional_id"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"1232" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:kEndTag] dataUsingEncoding:NSUTF8StringEncoding]];
// Grop ID parameter
[body appendData:[[NSString stringWithFormat:kStartTag, kBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:kContent, #"title"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"test" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:kEndTag] dataUsingEncoding:NSUTF8StringEncoding]];
// prepration_type_id parameter
[body appendData:[[NSString stringWithFormat:kStartTag, kBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:kContent, #"price"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"test" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:kEndTag] dataUsingEncoding:NSUTF8StringEncoding]];
// description parameter
[body appendData:[[NSString stringWithFormat:kStartTag, kBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:kContent, #"description"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"test" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:kEndTag] dataUsingEncoding:NSUTF8StringEncoding]];
NSMutableArray *arr_images=[[NSMutableArray alloc] init];
[arr_images addObject:[UIImage imageNamed:#"1.jpg"]];
[arr_images addObject:[UIImage imageNamed:#"1.jpg"]];
for (int i=0; i<arr_images.count;i++ )
{
NSData *image_videoData;//isImageSet?imgMyProfPict.image:#""
image_videoData = UIImageJPEGRepresentation([arr_images objectAtIndex:i], 1.0);
if (image_videoData)
{
// image File
[body appendData:[[NSString stringWithFormat:kStartTag, kBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"Content-Disposition: form-data; name=%#; filename=imageName.jpeg\r\n", #"services_image[]"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"Content-Type: image/jpeg\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:image_videoData];
[body appendData:[[NSString stringWithFormat:kEndTag] dataUsingEncoding:NSUTF8StringEncoding]];
}
else
{
[body appendData:[[NSString stringWithFormat:kStartTag, kBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
}
}
for (int i=0; i<arr_images.count;i++ )
{
NSData *image_videoData;//isImageSet?imgMyProfPict.image:#""
image_videoData = UIImageJPEGRepresentation([arr_images objectAtIndex:i], 1.0);
if (image_videoData)
{
// image File
[body appendData:[[NSString stringWithFormat:kStartTag, kBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"Content-Disposition: form-data; name=%#; filename=imageName.jpeg\r\n", #"glimpses_image[]"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"Content-Type: image/jpeg\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:image_videoData];
[body appendData:[[NSString stringWithFormat:kEndTag] dataUsingEncoding:NSUTF8StringEncoding]];
}
else
{
[body appendData:[[NSString stringWithFormat:kStartTag, kBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
}
}
// close form
[body appendData:[[NSString stringWithFormat:#"--%#--\r\n", kBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
NSString *postLength = [NSString stringWithFormat:#"%lu", (unsigned long)[body length]];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:body];
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
NSError *error;
id receivedData = [NSJSONSerialization JSONObjectWithData:returnData options:NSJSONReadingMutableContainers error:&error];
NSDictionary *dicResponse = (NSDictionary *)receivedData;
if ([[dicResponse valueForKeyPath:#"status"] intValue] == 1)
{
}
else
{
}
}