NSMutableDictionary * package = [[NSMutableDictionary alloc]init];
[package setValue:"123" forKey:@"UserID"];
[package setValue:"713"    forKey:@"Resources"];

NSMutableData *postBody = [NSMutableData data];

// JSON part for posting varibles
[postBody appendData:[[NSString stringWithFormat:@"--%@rn", [self getBoundary]] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[@"Content-Disposition: form-data; name="params"rnrn" dataUsingEncoding:NSUTF8StringEncoding]];
//THE LINE OF CODE BEING CONVERTED IN THE SWIFT VERSION
[postBody appendData:[package dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[@"rn" dataUsingEncoding:NSUTF8StringEncoding]];

// media part usually a form field that accepts the image
[postBody appendData:[[NSString stringWithFormat:@"--%@rn", [self getBoundary]] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name="UploadedFile"; filename="%@"rn", [NSString stringWithFormat:@"%@%@",dictionary[@"EasyName"], IMAGE_FILE_EXT]] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[@"Content-Type: image/jpegrnrn" dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:image];
[postBody appendData:[[NSString stringWithFormat:@"rn"] dataUsingEncoding:NSUTF8StringEncoding]];

// final boundary
[postBody appendData:[[NSString stringWithFormat:@"--%@--rn", [self getBoundary]] dataUsingEncoding:NSUTF8StringEncoding]];

return postBody;

let package = ["UserID" : "123", "Resources" : "713"]


var body = Data()
// JSON params
body.append(String(format: "rn--%@rn", boundary).data(using: .utf8)!)
body.append(String(format: "Content-Disposition: form-data; name="params"rnrn").data(using: .utf8)!);

do {
    //Convert to Data
    let json = try JSONSerialization.data(withJSONObject: request, options: .prettyPrinted)

    body.append(String(describing: json).data(using: .utf8)!)
    // body.append(String(format: "%@", json).data(using: .utf8)!);
    // body.append(json!)
    // body.append(String(describing: json).data(using: .utf8)!)

} catch {
    print(error)
}
body.append(String(format: "rn").data(using: .utf8)!)

// Image
body.append(String(format: "rn--%@rn", boundary).data(using: .utf8)!)
body.append(String(format: "Content-Disposition: form-data; name="UploadedFile"; filename="%@.%@" rnrn", photo.id, "jpg" ).data(using: .utf8)!);
body.append(String(format: "Content-Type: image/jpegrnrn").data(using: .utf8)!)
body.append(photo.Image)
body.append(String(format: "rn").data(using: .utf8)!)

// Final Boundary
body.append(String(format: "rn--%@rn", boundary).data(using: .utf8)!)

return body