Comments on: ASIHTTPRequest – Uploading Photos

By: doug

doug — Thu, 15 Jul 2010 12:39:55 +0000

I've never tried that before. What you'd need to do, is write an HTTP Server in cocoa. Here is a simple example: http://cocoawithlove.com/2009/07/simple-extensible-http-server-in-cocoa.html

By: Forrest

Forrest — Thu, 15 Jul 2010 02:13:44 +0000

Thanks ! I found that ASIHttpRequest provides some helps for S3. I will check them out.

Another question about back end server. If I just want to write some server using cocoa to do similar thing like “php” did, to receive file from your uploading, is that easy to do ? Sorry I have really no experience on back end service etc.

By: doug

doug — Wed, 14 Jul 2010 15:14:31 +0000

I’m sorry, but I have no experience with Amazon S3.

By: Forrest

Forrest — Wed, 14 Jul 2010 08:52:30 +0000

How about uploading images to S3 ?

And if I just want to create another Http Server in iPhone or Mac, are there any samples we can refer to first ?

Thanks

By: doug

doug — Wed, 30 Jun 2010 12:42:37 +0000

Hi Frankie,
There is lots of sample code out there for using the imagePicker. Basically you use some code, like I list below to save the image to the iPhone documents directory. Then you can point at this image later to upload it somewhere…

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo
{
NSLog(@”image width: %f image height: %f”, [image size].width, [image size].height);
NSData * imageData = UIImagePNGRepresentation(image);
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:@"myfilename.jpg"];
[imageData writeToFile:dataPath atomically:YES];
[self dismissModalViewControllerAnimated:YES];
}

By: Frankie

Frankie — Fri, 25 Jun 2010 19:15:56 +0000

How would integrate this using imagePickerController?
would have a code sample?

By: Romulo

Romulo — Mon, 10 May 2010 15:01:37 +0000

if I select an image from the Photo Library, how should I be able to use the setFile ?

By: doug

doug — Mon, 12 Apr 2010 20:53:06 +0000

Yeah. Here’s some sample python Google App Engine code with get’s the post data named file.

if (‘file’ in self.request.POST and
self.request.POST.get(‘file’, None) is not None and
self.request.POST.get(‘file’, None).filename):

file_data = self.request.POST.get(‘file’).file.read()

image_length = len(file_data)

if image_length > config.max_size:
self.response.out.write(“IMAGE_TOO_LARGE”)
return
else:
file_content_type = self.request.POST.get(‘file’).type
file_name = self.request.POST.get(‘file’).filename

try:
my_model.image = db.Blob(file_data)
my_model.imageName = file_name
my_model.imageType = file_content_type
my_model.imageLength = image_length
my_model.put()

except Exception, e:
logging.exception(e)
error = ‘Image error processing’
self.response.out.write(‘ERROR_PROCESSING_IMAGE’)
return

logging.info(‘File name : %s’ % file_name)
logging.info(‘Type : %s’ % file_content_type)
logging.info(‘Length : %s’ % image_length)
self.response.out.write(‘SUCCESS’)

class MyModel(db.Model):
image = db.BlobProperty()
imageName = db.StringProperty()
imageType = db.StringProperty()
imageLength = db.IntegerProperty()

By: Spark

Spark — Mon, 08 Mar 2010 09:44:45 +0000

Hi Doug and Ben,

Great stuff, I am wondering if it is actually possible to use ASIHTTPRequest to post data from iphone to the Google App Engine’s datastore , and more specifically the google file service https://gae-file-service.appspot.com/

Thanks

Spark

By: Colin

Colin — Thu, 18 Feb 2010 20:15:23 +0000

Hey Doug,
What does the PHP end look like to receive the data? I’ve been having a hard time determining why my file uploads won’t work, if it’s because the way I’m sending it or the way it’s being received..