I'm currently working on uploading an image to a server via HTTP Post and can't seem to figure out a way to build the url that calls the service. The user selects an image from the library or camera and then calls a json service that performs the insert statement. 

The service is expecting the following uritemplate: 

```
@"%@/DataTransfer/SetUserProfileImage?EMP_ID=%@&image=%@&imageName=%@"

```

It is expecting that the image data is converted somehow to string and sent over url.

This is my current code:

```
- (BOOL)setUserProfileImage:(UIImage *)imgUser Name:(NSString *)strName{

    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];

    NSData *dataImage = UIImagePNGRepresentation(imgUser);

    NSString* theNSString = [[NSString alloc] initWithData:dataImage encoding:NSASCIIStringEncoding];

    NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"%@/DataTransfer    /SetUserProfileImage?EMP_ID=%@&"
                                   "image=%@&imageName=%@",
                                   appDelegate.ServerAddress, 
                                   appDelegate.UserId,
                                   theNSString,
                                   strName]];

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url 
                                                       cachePolicy: NSURLRequestUseProtocolCachePolicy
                                                   timeoutInterval:10.0];

    [request setHTTPMethod:@"POST"];
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];

    NSURLResponse* response = nil;
   NSError* resultError = nil;

   NSData* data = [NSURLConnection sendSynchronousRequest:request 
                                     returningResponse:&response 
                                                 error:&resultError];

   NSString *strResult = [[NSString alloc] initWithBytes:[data bytes] 
                                               length:[data length] 
                                             encoding:NSUTF8StringEncoding]; 

   BOOL imgResponse = [strResult boolValue];
   [strResult release];

   return imgResponse;
}

```

I get an error saying that the NSURL is "". Can't seem to build a correct URL. I know that the service itself converts this string to an image again.

UPDATE:

```
- (BOOL)setUserProfileImage:(UIImage *)imgUser Name:(NSString *)strName{

AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];

NSString *url = [NSString stringWithFormat:@"%@/DataTransfer/SetUserProfileImage",appDelegate.ServerAddress]; 

NSData *data = UIImagePNGRepresentation(imgUser);

NSString * boundary = @"tweetPhotoBoundaryParm";
NSMutableData *postData = [NSMutableData dataWithCapacity:[data length] + 1024];

name=\"EMP_ID\"\r\n\r\n%@", @"100-01"];
NSString * boundaryString = [NSString stringWithFormat:@"\r\n--%@\r\n", boundary];
NSString * boundaryStringFinal = [NSString stringWithFormat:@"\r\n--%@--\r\n", boundary];

[postData appendData:[boundaryString dataUsingEncoding:NSUTF8StringEncoding]];    
[postData appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"image\";\r\nfilename=\"media.png\"\r\nContent-Type: image/png\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[postData appendData:data];
[postData appendData:[boundaryStringFinal dataUsingEncoding:NSUTF8StringEncoding]];

NSMutableURLRequest * theRequest=(NSMutableURLRequest*)[NSMutableURLRequest requestWithURL:[NSURL URLWithString:url] 
                                                                            cachePolicy:NSURLRequestUseProtocolCachePolicy 
                                                                        timeoutInterval:60.0];

[theRequest setHTTPMethod:@"POST"];

[theRequest addValue:[NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary] forHTTPHeaderField:@"Content-Type"];
//[theRequest addValue:@"www.tweetphoto.com" forHTTPHeaderField:@"Host"];
NSString * dataLength = [NSString stringWithFormat:@"%d", [postData length]];
[theRequest addValue:dataLength forHTTPHeaderField:@"Content-Length"];
[theRequest setHTTPBody:(NSData*)postData];

NSURLConnection * theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self];

[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
if (theConnection)
{
    webData =[[NSMutableData data] retain];
}
else
{
    NSLog(@"%@",@"Could not connect to the network");
}

return false;
}

```