RestMultipart.m

LRRestyRequestMultipartFormData *multipart = [[LRRestyRequestMultipartFormData alloc] init];

[multipart addPart:^(LRRestyRequestMultipartPart *part) {
  part.name = @"upload";
  part.fileName = @"My holiday.jpg"
  part.contentType = @"image/jpeg";
  part.data = UIImageJpegRepresentation(myImage);
}];

[multipart addPart:^(LRRestyRequestMultipartPart *part) {
  part.name = @"comment";
  part.contentType = @"text/plain";
  part.data = [@"this is a comment" dataUsingEncoding:NSUTF8Encoding];
}];

[[LRResty client] post:@"http://www.example.com/endpoint" payload:multipart withBlock:^(LRRestyResponse *response) {
  if (response.status == 201) {
    NSLog(@"It worked!");
  }
}];