how to send xml with an image on objective C

Question

How do I attach an image to an XML file in Objective-C to POST to a WebService?

<?xml version="1.0" encoding="ISO-8859-1" standalone="yes"?>
<SaveRequest>
    <PictureDataFile></PictureDataFile>
    <PictureDataName>sample</PictureDataName>
</SaveRequest>

How do I append the image data into 'PictureDataFile'?

And in my objective-C I have,

NSString *post = [self loadFileName:@"SaveRequest" ofType:@"xml"];
//loads the xml into a string
NSMutableData *postData = [[post dataUsingEncoding:NSUTF8StringEncoding    allowLossyConversion:YES] mutableCopy];
[postData appendData:paramBuilder.imageData];
//paraBuilder.imageData contains a UIImage in NSData

I can see the server receive the request, but no image data is received. Thanks for any help in advance.

It's expecting that one node's content to have the MIME type application/octet-stream? That seems strange. — Chuck, Mar 05 '14 at 21:19
Does it? the xml request when received from the web looks like : 223lierwee222s5....etc — ginoOwnits, Mar 05 '14 at 22:18

score 1 · Answer 1 · answered Mar 06 '14 at 16:43

I figured it out, in case anyone runs into the same issue: convert the nsdata to base64 by using

[NSData base64EncodedDataWithOptions:]

therefore attach the base64 data to the node like this :

[postData appendData:[imageData base64EncodedDataWithOptions:NSDataBase64Encoding64CharacterLineLength]];

how to send xml with an image on objective C

1 Answers1