Image Uploading in iOS - ios

Question

currently i am working on image uploading in ios application and here is my code
AFHTTPRequestOperationManager *man = [[AFHTTPRequestOperationManager alloc]init];
man.responseSerializer.acceptableContentTypes = [NSSet setWithObject:#"text/html"];
NSData *imageData = UIImagePNGRepresentation(self.imageView.image);
AFHTTPRequestOperation *op = [man POST:AddGroup parameters:#{ #"userid":#"6",
#"name":self.txtGroupName.text
#"description":self.textViewGroupDescription.text,
#"image":imageData }
constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
[formData appendPartWithFileData:imageData name:#"image" fileName:filename mimeType:#"image/png"];
}
success:^(AFHTTPRequestOperation *operation, id responseObject)
{
NSLog(#"Success: %# ***** %#", operation.description, operation.responseString);
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:#"Imani" message:#"New Group Succesfully Created.." delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil] ;
[alertView show];
}
failure:^(AFHTTPRequestOperation *operation, NSError *error)
{
NSLog(#"Error: %# ***** %#", operation.responseString, error);
}];
[op start];
now i am getting response from successfully from json but image data are passing null in to server any one have idea ?
Thank you.

Answer 1

try this cede to upload image on server.
AFHTTPRequestOperationManager *manager = [[AFHTTPRequestOperationManager alloc] initWithBaseURL:[NSURL URLWithString:#"your api link"]];
NSData *imageData = UIImageJPEGRepresentation(self.imgPost.image, 0.5);
NSDictionary *parameters = #{#"param": #"value",
#"param2" : #"value2"
};
AFHTTPRequestOperation *op = [manager POST:#"/api/store/posts/format/json" parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
//do not put image inside parameters dictionary as I did, but append it!
[formData appendPartWithFileData:imageData name:#"file" fileName:[NSString stringWithFormat:#"njoyful_%f.jpg",[NSDate timeIntervalSinceReferenceDate]] mimeType:#"image/jpeg"];
} success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"Success: %# ***** %#", operation.responseString, responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %# ***** %#", operation.responseString, error);
}];
[op start];

Answer 2

I'm not familiar with AFHTTPRequestOperation so i'll just give you something i'm using that creates json request.
- (NSURLRequest *)convertToRequest:(NSString *)stringURL withDictionary:(NSDictionary *)dictionary
{
NSError *error = nil;
NSData *JSONData = [NSJSONSerialization dataWithJSONObject:dictionary options:0 error:&error];
NSURL *url = [NSURL URLWithString:stringURL];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:#"POST"];
[request setHTTPBody: JSONData];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept-Encoding"];
[request setValue:[NSString stringWithFormat:#"%lu", (unsigned long)[JSONData length]] forHTTPHeaderField:#"Content-Length"];
return request;
}
Please check my answer here
This also work for multi image upload. Cheers! :)