Upload Image on tumblr in iPhone - iphone

Question

I am really stuck with this issue for many days. In my app i need to upload image on tumblr, i have tried various tutorials and updates however none of them is working for posting images on tumblr.Please help me any one if you have done this.
NSData *imageData = [NSData dataWithContentsOfFile:photo];
//stop on error
if (!imageData) return NO;
//Create dictionary of post arguments
NSArray *keys = [NSArray arrayWithObjects:#"email",#"password",#"type",#"caption",nil];
NSArray *objects = [NSArray arrayWithObjects:
tumblrEmail,
tumblrPassword,
#"photo", caption, nil];
NSDictionary *keysDict = [[NSDictionary alloc] initWithObjects:objects forKeys:keys];
//create tumblr photo post
NSURLRequest *tumblrPost = [self createTumblrRequest:keysDict withData:imageData];
[keysDict release];
//send request, return YES if successful
NSURLConnection *tumblrConnection = [[NSURLConnection alloc] initWithRequest:tumblrPost delegate:self];
if (!tumblrConnection)
{
NSLog(#"Failed to submit request");
return NO;
}
else
{
NSLog(#"Request submitted");
receivedData = [[NSMutableData data] retain];
[tumblrConnection release];
return YES;
}
-(NSURLRequest *)createTumblrRequest:(NSDictionary *)postKeys withData:(NSData *)data
{
//create the URL POST Request to tumblr
NSURL *tumblrURL = [NSURL URLWithString:#"http://api.tumblr.com/v2/blog/kashifjilani.tumblr.com/posts"];
NSMutableURLRequest *tumblrPost = [NSMutableURLRequest requestWithURL:tumblrURL];
[tumblrPost setHTTPMethod:#"POST"];
//Add the header info
NSString *stringBoundary = #"0xKhTmLbOuNdArY---This_Is_ThE_BoUnDaRyy---pqo";
NSString *contentType = [NSString stringWithFormat:#"multipart/form-data; boundary=%#",stringBoundary];
[tumblrPost addValue:contentType forHTTPHeaderField: #"Content-Type"];
//create the body
NSMutableData *postBody = [NSMutableData data];
[postBody appendData:[[NSString stringWithFormat:#"--%#\r\n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
//add key values from the NSDictionary object
NSEnumerator *keys = [postKeys keyEnumerator];
int i;
for (i = 0; i < [postKeys count]; i++) {
NSString *tempKey = [keys nextObject];
[postBody appendData:[[NSString stringWithFormat:#"Content-Disposition: form-data; name=\"%#\"\r\n\r\n",tempKey] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[[NSString stringWithFormat:#"%#",[postKeys objectForKey:tempKey]] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
}
//add data field and file data
[postBody appendData:[#"Content-Disposition: form-data; name=\"data\"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[#"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[NSData dataWithData:data]];
[postBody appendData:[[NSString stringWithFormat:#"\r\n--%#--\r\n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
//add the body to the post
[tumblrPost setHTTPBody:postBody];
return tumblrPost;
}

Answer 1

This works for me:
NSData *imageData = UIImageJPEGRepresentation(yourUploadImage, 0.9);
NSMutableURLRequest *aRequest = [[[NSMutableURLRequest alloc] init] autorelease];
[aRequest setURL:[NSURL URLWithString:#"https://www.tumblr.com/api/write"]];
[aRequest setHTTPMethod:#"POST"];
NSString *boundary = #"0xKhTmLbOuNdArY";
//NSString *boundary = [NSString stringWithString:#"---------------------------14737809831466499882746641449"];
NSString *contentType = [NSString stringWithFormat:#"multipart/form-data; boundary=%#",boundary];
[aRequest addValue:contentType forHTTPHeaderField: #"Content-Type"];
/*
now lets create the body of the post
*/
NSMutableData *body = [NSMutableData data];
[body appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"Content-Disposition: form-data; name=\"email\"\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:Tumblr_UserName_Here dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"Content-Disposition: form-data; name=\"password\"\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:Tumblr_Password_Here dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n",boundary]
dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"Content-Disposition: form-data; name=\"type\"\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"photo" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"Content-Disposition: form-data; name=\"data\"; filename=\"upload.jpg\"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"Content-Transfer-Encoding: image/jpg\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:imageData];
[body appendData:[[NSString stringWithFormat:#"\r\n--%#--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
if(comment available here)
{
[body appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n",boundary]
dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"Content-Disposition: form-data; name=\"caption\"\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[commentString dataUsingEncoding:NSUTF8StringEncoding]];
}
// setting the body of the post to the reqeust
[aRequest setHTTPBody:body];
[NSURLConnection connectionWithRequest:aRequest delegate:self];
Now delegate of NSURLConnection
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
if(connection)
NSLog(#"Success");
else
NSLog(#"Something Wrong");
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error;
{
NSLog(#"%#",[error description]);
}

Answer 2

I've been struggling with this for a long time too, but I figured out how to post easily.
You can see my post for an answer to this. If you have any problem with it, I'd be glad to help.