send uiimage to a server

Until now I send strings to a server with this method:

NSString *reqURL = [NSString stringWithFormat:];
reqURL = [reqURL stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:reqURL]];
NSURLResponse *resp = nil;
NSError *err = nil;
[NSURLConnection sendSynchronousRequest: theRequest returningResponse: &resp error开发者_StackOverflow社区: &err];

and I want to know if there is a possible to send an UIImage to server.

if your image is png then use UIImagePNGRepresentation to get it's data in NSData.

NSData *data = UIImagePNGRepresentation(myUIImage);

if your image is jpg or jpeg then use UIImageJPEGRepresentation to get it's data in NSData.

NSData *data = UIImageJPEGRepresentation(myUIImage);

Check in Documentation

Check below SO post for sending NSData UIImage to server.

Sending an image data(NSData) to the server

you can try this:-

    NSData *imagedata=[NSData dataWithData:UIImagePNGRepresentation(self.editedImage)]; 
    NSString *base64string=[imagedata base64EncodedString];
    NSString *str = [NSString stringWithFormat:@"%@/uploadBlogData.php",appUrl];
    NSURL *url = [NSURL URLWithString:[str stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
    ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
    [request setPostValue:base64string forKey:@"imagedata"];
    [request setRequestMethod:@"POST"];
    [request setDelegate:self];
    [request startSynchronous];

        NSLog(@"responseStatusCode %i",[request responseStatusCode]);
    NSLog(@"responseStatusString %@",[request responseString]);

What this code exactly does it, I have convert my image into NSData and then again encode in base 64 string. You can also do this.

Use ASIHTTPRequest

and do this:

    -(void)uploadImage{
        ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];

        // Upload a file on disk
        [request setFile:@"/Users/ben/Desktop/ben.jpg" withFileName:@"myphoto.jpg" andContentType:@"image/jpeg"
    forKey:@"photo"];

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

      [request setDelegate:self];
      [request setDidFinishSelector:@selector(uploadRequestFinished:)];
      [request setDidFailSelector:@selector(uploadRequestFailed:)];

      [request startAsynchronous];
}