How send NSData using POST from a iOS application?

Question

NSData *imageData = UIImagePNGRepresentation(image);

How send imageData using POST?

score 11 · Accepted Answer · answered May 25 '12 at 11:03

The following code should help

NSData *imageData = UIImagePNGRepresentation(image);

NSURL *yourURL = ...
NSMutableURLRequest *yourRequest = [NSMutableURLRequest requestWithURL:yourURL 
                                                           cachePolicy:NSURLRequestUseProtocolCachePolicy 
                                                       timeoutInterval:60.0];
//Set request to post
[yourRequest setHTTPMethod:@"POST"];

//Set content type 
[yourRequest setValue:@"image/png" forHTTPHeaderField:@"Content-Type"];

// Set authorization header if required
...

// set data
[yourRequest setHTTPBody:imageData];


// create connection and set delegate if needed
NSURLConnection *yourConnection = [[NSURLConnection alloc] initWithRequest:yourRequest 
                                                                  delegate:self
                                                          startImmediately:YES];

Please note that, it is assumed that you are using ARC.

ok but one must still use the delegate methods to receive the response or error, right? — marciokoko, Jun 30 '13 at 19:44
What should be the content type if I'm posting NSData that is made from NSString? — Satyam, Mar 10 '14 at 13:57
Can some one suggest me what should be the equivalent PHP code to receive the image. — Satyam, Jul 09 '14 at 06:29

score 2 · Answer 2 · edited May 23 '17 at 12:33

2

You can check this answer, if you are okay with using NSURLConnection https://stackoverflow.com/a/10750428/591951

This post explains how to POST an Audio file, but you can upload any file using the same method

edited May 23 '17 at 12:33

Community

1
1

answered May 25 '12 at 11:01

Krrish

2,256
18
21

score 1 · Answer 3 · answered May 25 '12 at 10:58

1

You can use ASIHTTPRequest library: http://allseeing-i.com/ASIHTTPRequest/

Then it's pretty easy:

ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];

// Upload an NSData instance
[request setData:imageData withFileName:@"myphoto.jpg" andContentType:@"image/jpeg" forKey:@"photo"];

Info on how to use: http://allseeing-i.com/ASIHTTPRequest/How-to-use

answered May 25 '12 at 10:58

Michal Dymel

4,312
3
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From http://allseeing-i.com/ASIHTTPRequest/How-to-use : "Please note that I am no longer working on this library - you may want to consider using something else for new projects. :)" So I do not advise to use the library. – Mert Sep 13 '12 at 11:00

How send NSData using POST from a iOS application?

3 Answers3

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