Uploading an image and some other parameters in single post request - ios

Question

I am trying to upload an image along with some text. I am able to POST the text but somehow the image doesn't reach to server.
Following is my code:
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSString *password = [[Utilities sharedConfiguration] sha1:txtPassword.text];
NSString *post = [NSString stringWithFormat:#"id_sender=%#&token=%#&array_receiver=%#&message=%#&time_allowed=%#&password=%#",[defaults objectForKey:#"id_user"],[defaults objectForKey:#"token"],selectedContact,txtMessage.text,txtTime.text,password];
NSLog(#"post %#",post);
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSMutableData *data = [NSMutableData dataWithData:postData];
//NSMutableData *data = nil;
if(myimage!=nil){
NSString *boundary = #"---------------------------14737809831466499882746641449";
[data appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[data appendData:[[NSString stringWithFormat:#"Content-Disposition: form-data; name=\"userfile\"; filetype=\"image/png\"; filename=\"image.png\"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[data appendData:[[NSString stringWithFormat:#"Content-Type: image/png\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[data appendData:[NSData dataWithData:UIImagePNGRepresentation(myimage)]];
}
NSString *postLength = [NSString stringWithFormat:#"%d", [data length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:#"https://www.myurl.com/send_message_17294.php"]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:data];
[MBProgressHUD showHUDAddedTo:self.view animated:TRUE];
[NSURLConnection connectionWithRequest:request delegate:self];

Answer 1

You can use AFNetworking so you don't have to digg into the multi-part request format.
AFHTTPClient *client = [[AFHTTPClient alloc] initWithBaseURL:[NSURL URLWithString:#"http://hostport"]];
NSDictionary *simpleParams = #{ #"key": #"value" };
NSMutableURLRequest* request = [client multipartFormRequestWithMethod:#"POST" path:#"/path" parameters: simpleParams constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
[formData appendPartWithFileData:fileData
name:#"paramName"
fileName:#"filename.png"
mimeType:#"image/png"];
}];
Then create an operation depending on the expected response. For example if you expect JSON:
AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
// handle success
} failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
// handle error
}];
You can get more information in the AFNetworking documentation.

Answer 2

Try this : Its a Synchronous Request. And image is in base64 string format
NSString * param = [NSString stringWithFormat:#"%#=%#&%#=%#&%#=%#",
#"uphoto",imageData, #"category",categoryName, #"name",FIRSTNAME]; // parameters
NSData *postData = [param dataUsingEncoding:NSUTF8StringEncoding];
NSURL *url = [NSURL URLWithString:#"http://www. ..."];
NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];
[req setHTTPMethod:#"POST"];
[req setValue:[NSString stringWithFormat:#"%d", postData.length] forHTTPHeaderField:#"Content-Length"];
[req setValue:#"application/x-www-form-urlencoded charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[req setHTTPBody:postData];
NSError *error = nil;
NSHTTPURLResponse *res = nil;
NSData *responceData = [NSURLConnection sendSynchronousRequest:req returningResponse:&res error:&error];
if (error)
{
//handle error
return nil;
}
else
{
}